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• Ubuntu 12.10 ATI Driver 12.11 fails after compiz and xorg update

  - by Lukasz W.

  I updated my system via the package manager from Unity and next restart was just blackness. After being here: http://linux.hootip.com/amd-catalyst-12-11-beta-fix-and-installation-the-drivers-on-ubuntu-12-11/ I had the Catalyst 12.11 Beta driver installed. I checked my /var/log/apt/history.log and the update I received was of compiz and xorg packages. I tried to get latest release info, but all I get from their pages are commit info; I can't tell what was n the package update I got served. Anyone knows what was in the latest xorg/compiz release that broke the driver? Which driver should I use now? For completeness this is how I got the system back to boot (probably lame and not elegant): Boot with GRUB selection "More Ubuntu options (or sth like that), From secondary screen select 3.5.0-19 with boot options, When system prompts on stuff you'd like to do, select "root" - Drop to root shell, There: # mount -o remount,rw / # mv /etc/X11/xorg.conf /etc/X11/xorg.conf.failed # /usr/share/ati/fglrx-uninstall.sh # reboot This got be back on my feet.

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• nvidia graphics resolution problem

  - by Deepak Adhikari

  I am currently using ubuntu 12.04 I have acer aspire timelinex 3830tg with 2GB nvidia GeForce GT540M graphics card To enable my graphics card I followed following steps. 1.) I activated nvidia_current and nvidia_current_updates from additional drivers 2.) sudo nvidia-xconfig 3.) then reboot Following these steps I got following errors 1.) my resolution is 640x480...(there is no option of 1366x768 in display...previously there was 1366x768 when nvidia-xconfig command was not entered) 2.) when I open nvidia-settings it shows me following error "You do not appear to be using the NVIDIA X driver. Please edit your X configuration file (just run 'nvidia-xconfig' as root) and restart the X server." Problem need to be solved 1.) Change resolution to 1366x768 2.) Also how to check my nvidia graphics working or not Please some one please help me to solve these issues...I am seriously in need of my graphics card... I wan't my nvidia graphics card work as my intel graphics smoothly I am not willing to use bumblebee with regards, ubuntu user

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• Ubuntu installer does not show drives

  - by Tanweer Rashid

  I am trying to install Ubuntu 12.04 LTS on my Inspiron laptio, but the installer does not show any drives. My system has a 1TB SATA drive and a 32GB SSD. As far as I can figure, the boot files are kept on the SSD for fast startup (for Windows). During Win7 installation, I had to manually load drivers for RAID controller to see all available drives. Running fdisk -l from the live CD shows the following: ubuntu@ubuntu:~$ sudo fdisk -l Disk /dev/sda: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x234b4782 Device Boot Start End Blocks Id System /dev/sda1 63 80324 40131 de Dell Utility /dev/sda2 * 81920 41627647 20772864 7 HPFS/NTFS/exFAT /dev/sda3 41627648 357019647 157696000 7 HPFS/NTFS/exFAT /dev/sda4 357019648 1953517567 798248960 f W95 Ext'd (LBA) /dev/sda5 672415744 1312966655 320275456 7 HPFS/NTFS/exFAT /dev/sda6 1312968704 1953517567 320274432 7 HPFS/NTFS/exFAT Disk /dev/sdb: 32.0 GB, 32017047552 bytes 255 heads, 63 sectors/track, 3892 cylinders, total 62533296 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x234b474b Device Boot Start End Blocks Id System /dev/sdb1 2048 16775167 8386560 84 OS/2 hidden C: drive ubuntu@ubuntu:~$ In the Ubuntu installer, I can only choose /dev/sdb for "Device for boot loader installation", and sdb doesn't show any drives. I cannot select /dev/sda. Any ideas anyone? Thanks.

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• Why is Javascript used in MongoDB and CouchDB instead of other languages such as Java, C++?

  - by startup007

  I asked this question on SO but was suggested to try here. So here it goes: My understanding of Javascript so far has been that it is a client-side language that capture events and makes a web-page dynamic. But on reading the comparison between MongoDB and CouchDB I noticed that both are using Javascript. This makes me wonder the reason behind the choice of JavaScript over other conventional languages. I guess I am trying to understand the role of JavaScript and its advantages over other languages. Update: I am not asking about the languages / drivers supported by the two databases. The comparison says: Both CouchDB and MongoDB make use of Javascript. CouchDB uses Javascript extensively including in the building of views. MongoDB also supports running arbitrary javascript functions server-side and uses javascript for map/reduce operations. My lack of understanding pertains to why is Javascript being used at all for the backend work. Why is it preferred for building views in CouchDB, or for using map/reduce operations? Why C/C++ or Java were not used? What are the advantages in using Javascript for such back-end work?

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• Reproducible freezes with on an AMD fusion (e350) sony vaio

  - by doycho

  So a week ago I bought it and I've been struggling to make the Ubuntu which I installed stable. There's one thing that makes my life miserable, though. There's this easily reproducible freeze when I start some kind of video. So here is what happens: Everything works fine for some time I start vlc/mplayer/flashplayer/totem with something to watch In few minutes time I lose the sound (nothing in the logs at this point) At that time the video app instantly allocates all the memory and its CPU usage skyrockets. Total freeze. I can move the cursor around for few seconds and sometimes even switch to another app. But ultimately there comes the time I can't do anything - can't kill X with ctrl+alt+backspace (I have it enabled), can't switch to any other console (ctrl+alt+f1-6), can't connect to the machine via ssh. The only way to restart it is the ctrl+alt+SysRq+UABI magic :) What discourages me most is the fact I can't see anything in the logs. The only error I've noticed is Jun 19 17:00:37 serenity kernel: [ 1506.350676] software-center[17581]: segfault at 30 ip 00007fd3631b814c sp 00007fff18a6fa10 error 4 in libgtk-x11-2.0.so.0.2400.4[7fd362f7d000+436000]. I've been searching through the Xorg log, kernel logs, syslog. If you have any idea how I can get more debug info I'll be glad to try them. Things I've tried: Changing drivers - the open source one, the proprietary driver xorg-edgers' ppa - https://launchpad.net/~xorg-edgers/+archive/ppa changing to the last stable kernel (2.6.39) Some notes: It my be irrelevant but the sound is constantly stuttering. This probably is a separate issue though I've found that if I start more video/sound apps the freeze happens faster.

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• Engineered to Inform, Inspire, Entertain

  - by Oracle OpenWorld Blog Team

  by Karen Shamban Take note! Oracle OpenWorld keynote lineup announced  The lineup for the keynotes at this year's Oracle OpenWorld conference has just been announced.  Expert speakers will provide insights into industry trends, the latest technology developments and futures, as well as key strategies for achieving business efficiency and innovation. Critical business drivers such as engineered systems, cloud computing, customer experience, and business analytics and big data will be featured topics. Executive keynotes include: Oracle CEO Larry Ellison on "Hardware and Software, Engineered to Work Together: Why It's a Different Approach" and "The Oracle Cloud: Where Social is Built In" Oracle President Mark Hurd discussing "Shift Complexity" with SVP of Oracle Database Development Andrew Mendelsohn,  and "See More, Act Faster: Oracle Business Analytics" Oracle EVP of Product Development Thomas Kurian focusing on "The Oracle Cloud: Oracle's Cloud Platform and Applications Strategy" Oracle EVP of Systems John Fowler, Oracle Chief Corporate Architect Edward Screven, and Oracle SVP of Systems Technology Juan Loiaza on "Oracle Cloud Infrastructure and Engineered Systems: Fast, Reliable, Virtualized" For more information on speakers, topics, and schedule, go to the Oracle OpenWorld Keynotes page.

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• Ubuntu 11.10 power management does not recognize removal of power supply!

  - by sema

  I have a Lenovo Ideapad Z370 with Ubuntu 11.10 and the battery status indicator shows wrong information. Problem: The indicator always shows that the power supply is connected, even if it's not connected. The battery charges and discharges normally. However, the status information is wrong. When charging, the "time to charge" decreases, and when discharging the "time to charge" increases. If the power supply is connected the power statistics show: "Supply Yes" "Online Yes" If it is not connected it shows: "Supply Yes" "Online No" My trials: I tried reinstalling the indicator applet, but that doesn't help. Searching for solutions or similar problems didn't point out any help. Background: The problem occured after I switched the battery mode in Windows. (I use a dual boot system.) Lenovo drivers allow a "battery runtime mode" for maximum runtime and a "battery health mode" for maximum battery lifetime. I initially used the runtime mode, tried the health mode for some time, but switched back to the runtime mode. The problem occured after switching to health mode. Does anyone have an idea what is wrong? The problem is relevant for me as I get no information when battery status low and the computer runs out of energy without shutdown or hibernation. This is really a problem for me!

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• 12.04, nvidia-settings makes one of my dual monitors grey and useless, disables network

  - by Kerrick

  I'm running Ubuntu 12.04 64-bit, Precise Pangolin, with a PNY GTS 250 1GB video card and a monitor plugged into each of the DVI ports. I'm using the proprietary drivers (post-release updates). If I set anything to do with Separate X Screens up in nvidia-settings (and write it to xorg.conf and reboot), my second monitor has a grey background, no menu bar, no ability to have a window on it, the second monitor doesn't get picked up in a screneshot, and if I move my mouse cursor to it it's an ugly black X. Plus, my network is unable to connect to anything. If I subsequently delete /etc/X11/xorg.conf and reboot, everything goes back to working, albeit with a single monitor activated. If I set anything to do with TwinView up in nvidia-settings, my second monitor starts working, but it isn't seen as a second monitor by Ubuntu, so I can't apply color calibration to it separately. Plus, my mouse gets "caught" between the monitors every time I try to move my cursor between the two. What gives? If it helps, this is the xorg.conf that nvidia-settings generates for Separate X Screens.

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• Accessing hardware via USB by proprietary windows software using Wine

  - by Carlos Eugenio Thompson Pinzón

  I have this proprietary software that access some hardware using USB. Over a year ago I tried to install it on a Ubuntu OS using Wine (the program is written for Windows). The UI seemed to work just fine but it had no access to the USB port. Back then I had to license a Windows copy in order to get the job done. Now, that Windows version we where using is deprecated and it is not longer available and available versions cost trice as much. So it is time to give Linux another try. How can I ensure that the USB is available for a Wine application? Neither the application nor the hardware install any driver, the app just pool all available USB drivers and make a handshake if it recognizes that the hardware is present. I want to minimize the test cases before abandoning Linux one more time. Update I've just tried again (with the hope an upgrade was made from last year), and it is not working. The proprietary windows app is not finding the hardware.

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• Ubuntu unstable, showing awkward behavior

  - by Christophe De Troyer

  Let me start off by saying that this problem can't be described in such a way that allows me to find other topics, which have some relevance to this problem. That's why I created this question. In case this question might have been asked before, I apologize. So what is the problem: My computer (Intel Core I5 2500K - with HD3000 graphics -, 6 gb DDR, 1 SSD, 3 HDD's and an Asus P8Z68 mobo) runs Windows on the SDD. But I decided to give Ubuntu a chance to be my daily OS for basic needs since it's open source and I find it a handicap of not being able to work with it. I decided to run the windows installer and install Ubuntu 12.04 to my 320 Gb hdd which was not being used in my computer. After installing it and booting it, it worked great! I spent the rest of the day/night using it, and falling for it. Great, today I booted Ubuntu (I had the choice in the bootloader as I expected). It asked me for my login and it started logging in. Now, after a few (literally) minutes of letting it "boot" I tried determining the cause of this. What I've figured out so far: When I left click on my desktop it freezes completely for a few seconds I have something like tearing in the left side menu (in games, you know) when I move my mouse around It runs well when just hovering around with my mouse, but from the point I click on something it freezes. What have I tried? I ran a HD Tune diagnostic on the HDD but the performance seems to be very close to the stock values, so I'm taking it as a good HDD. I'm trying to get to the drivers update panel for Ubuntu, but with the state it's in, it's taking a lot of time.. Could anyone point me in a direction for troubleshooting this? I'm not really a noob at all, just when using Linux.. :) Thanks in advance! Christophe,

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• Fresh install of Ubuntu 12.10 won't boot on Asus X101CH Eee PC

  - by Najdmie

  I did a fresh install of Ubuntu 12.10 in my Asus X101CH Eee PC, using a live usb which I made using startup disk creator, replacing Ubuntu 12.04. The installation ran smoothly, but when I boot, it goes to a purple screen for a second, then a lot of text like the following shows up in sequence: Starting crash report submission daemon [OK] Starting CPU interrupts balancing daemon [OK] Stopping save kernel messages [OK] _ And the cursor just keeps blinking for hours. I can't log in. Pressing Alt + F2 did not bring me to console mode. I thought it might be a partition problem so I formatted the whole disk, by creating a new partition table using gparted in Ubuntu 12.04 live USB. I noticed that I can't try Ubuntu using 12.10 live USB either; it just went to a blank screen when I hit the 'try ubuntu' button. But the same problem arose. I even changed the pen drive for the live USB a couple of times. I happened to know that the Intel Atom N2600 Cedar Trail CPU in my computer is not well supported in Linux, I managed to install its drivers in Ubuntu 12.04, although the computer went blank during the installation.

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• Ubuntu boot problem/unity failure

  - by Kenny

  So here I am sitting in a big pile of muck...over the last 2 days things have just been going from bad to worse with version of Ubuntu 12.10. So 2 days ago I was fiddling around with kismet and airmon-ng. I had added a bunch of libraries, I remember adding GTK+, Glib, Pango, etc. After restarting the other day my desktop opened fine but my background was changed to the default and none of my files on the desktop were visible and the top bar and side bar were not visible or functioning. The window managers were still working. I then tried reinstalling my nvidia drivers to see if that would change anything, it did not. Then after doing some searching online I found something that suggested I try deleting the file "libgtk-3.so.0". I deleted this and tried to restart the computer. Upon restart, I was greeted by a black screen with some writing saying something about -starting clamAV [OK] -problem with Apache Server could not verify correct...something... - checking battery state [ok]. After it gets to battery state it just stops and sits there indefinitely. So to sum, I cannot login to ubuntu because it just sits at this black screeen. If anyone has any idea as to what is going on and how to fix it please let me know. Thanks!

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• Seeking solution for printing-reporting .NET

  - by Parhs

  I am developing an application that prints in separate threads in extreme cases about 20-25 pages per minute to various thermal printers. Currently templates for these are XAML xps documents. All printers have graphics drivers that support EMF/GDI printing. So GDI-EMF is done by operating system resulting in slower performance. Sending raw text for printing is another good solution but doesnt work always , because some clients have old chinese thermal printer that nobody support thus impossible to change codepage / emulation. So it doesnt work always. Also most computers running my software are low end ATOM CPU. So I am thinking to return to GDI, EMF printing and have both Text-Only reports and EMF reports. Another reason i want EMF is because here receipts are signed by Electronic Fiscal Memory device.Most of these dont do good job extracting text from XPS as they dont follow the standard but how windows convert GDI to XPS.Even with text-only mode some of them dont support all character encodings and are impossible to send paper cut command after the sign. I know that using a reporting engine would solve rendering problem but I dont want to buy one. All I want is to be able to show tabular data and insert an image and replaced text.I know there is StringTemplate that could do the generation of template but the problem is i should parse somehow the template and render it using GDI commands. Is there any other solution/approach for this ? Or is there anything ready ?

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• nvidia-settings makes one of my dual monitors grey and useless, disables network

  - by Kerrick

  I'm running Ubuntu 12.04 64-bit, Precise Pangolin, with a PNY GTS 250 1GB video card and a monitor plugged into each of the DVI ports. I'm using the proprietary drivers (post-release updates). If I set anything to do with Separate X Screens up in nvidia-settings (and write it to xorg.conf and reboot), my second monitor has a grey background, no menu bar, no ability to have a window on it, the second monitor doesn't get picked up in a screneshot, and if I move my mouse cursor to it it's an ugly black X. Plus, my network is unable to connect to anything. If I subsequently delete /etc/X11/xorg.conf and reboot, everything goes back to working, albeit with a single monitor activated. If I set anything to do with TwinView up in nvidia-settings, my second monitor starts working, but it isn't seen as a second monitor by Ubuntu, so I can't apply color calibration to it separately. Plus, my mouse gets "caught" between the monitors every time I try to move my cursor between the two. What gives? If it helps, this is the xorg.conf that nvidia-settings generates for Separate X Screens.

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• Can I set my Optimus Nvidia card to run Unity3D with bumblebee?

  - by manuhalo

  I'd like to know whether I can run compiz on my Nvidia card to speed things up. It's a Dell XPS15 laptop but I'm mostly using it as a desktop, so battery life is not important. Apparently my Intel integrated card is able to run unity 3D, but my Nvidia GT 420M is not. Here's the output of unity_support_test, both with optirun and without it: manuhalo@Ubuntu-XPS-L501X:~$ optirun /usr/lib/nux/unity_support_test -p OpenGL vendor string: NVIDIA Corporation OpenGL renderer string: GeForce GT 420M/PCI/SSE2 OpenGL version string: 4.1.0 NVIDIA 280.13 Not software rendered: yes Not blacklisted: yes GLX fbconfig: yes GLX texture from pixmap: no GL npot or rect textures: yes GL vertex program: yes GL fragment program: yes GL vertex buffer object: yes GL framebuffer object: yes GL version is 1.4+: yes Unity 3D supported: no manuhalo@Ubuntu-XPS-L501X:~$ /usr/lib/nux/unity_support_test -p OpenGL vendor string: Tungsten Graphics, Inc OpenGL renderer string: Mesa DRI Intel(R) Ironlake Mobile OpenGL version string: 2.1 Mesa 7.11 Not software rendered: yes Not blacklisted: yes GLX fbconfig: yes GLX texture from pixmap: yes GL npot or rect textures: yes GL vertex program: yes GL fragment program: yes GL vertex buffer object: yes GL framebuffer object: yes GL version is 1.4+: yes Unity 3D supported: yes Any ideas of why this is happening? Thanks in advance to anyone able to shed some light on this. What I have tried: Installed the v290 drivers from the x-stable PPA. Tried forcing Unity-3D to work by telling Unity to ignore the unity-support-test results i.e. gksudo gedit /etc/environment add the following UNITY_FORCE_START=1 to the end of the file.

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• Ubuntu doesn't boot due to GRUB-Problems

  - by Dave

  Users out there, I came here with the spark of a hope, that you could help me. I want to get rid of my old WinXP, because the Game-Support for it seems to slowly expire now... So I took a second drive, just an old empty one I had at hands (ATA-Maxtor 90648D3), plugged of the other drive with WinXP, so that it couldn't be harmed, and started the installationof Ubuntu 12.04. Everything went as it was supposed to, until the end. Normal shutdown after successful installation process. But when I tried to boot my new Ubuntu from the HDD, it said: error: out of disk. grub rescue> So, what to do now? I already tried a lot of things in the terminal, e.g. the update-grub as mentioned on http://opensource-sidh.blogspot.de/2011/06/recover-grub-live-ubuntu-cd-pendrive.html. Everything worked, he didn't complain about a missing data or anything, but at the end of the day he still wasn't able to boot! Next step was to change the etc/default/grub-file, so that it could load the ATA-drivers first, so that there is now problem with my drive. But even this didn't seem to have any effect, I'm still stuck with Ubuntu in the Live-CD-Mode... If there was anybody to help me out there, I would be very glad. Thanks for any support, Dave P.S.: I even tried to fix it with boot-repair, a small tool for Ubuntu, and it created a file with data that could probably help you to help me. You can find it on http://paste.ubuntu.com/1428022/

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• browser without gpu support

  - by manuzhang

  Google has an Easter egg that draws 3D graph but when I tried it out on chrome it complained about no WebGL support. I've also tested it on Firefox whose WebGL support was enabled but ended up with the same problem. Thus, I suspect it's an issue of my GPU. Some googling led me to chrome://gpu and here's what I got Graphics Feature Status Canvas: Software only, hardware acceleration unavailable HTML Rendering: Software only, hardware acceleration unavailable 3D CSS: Unavailable. Hardware acceleration unavailable WebGL: Unavailable. Hardware acceleration unavailable WebGL multisampling: Unavailable. Hardware acceleration unavailable Problems Detected GPU process was unable to boot. Access to GPU disallowed. GL driver is software rendered. Accelerated compositing is disabled.: 59302 Mesa drivers in linux older than 7.11 are assumed to be buggy. Accelerated 2d canvas is unstable in Linux at the moment. Version Information Data exported Tue Apr 10 2012 18:35:57 GMT+0800 (CST) Chrome version 18.0.1025.151 (Official Build 130497) Operating system Linux 3.0.0-0300-generic Software rendering list version 1.27 ANGLE revision 988 2D graphics backend Skia I wonder what each of the problem implies and How I may properly deal with it? I'm using Ubuntu 11.04

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• Cannot Connect Modem ( /dev/ttySL0 ) Using gnome-ppp - Dial-Up Connection

  - by nicorellius

  I'm trying to connect my Toshiba Satellite running Ubuntu 10.04 to my Eris running Android 2.1 through a Bluetooth connection and establish a dial-up connection (DUN) with the modem. I can connect my phone to my laptop, and I can detect my modem (after installing drivers), which is located at /dev/ttySL0. But when I launch gnome-ppp and enter my phone number (123 for PDA-Net) I get a dialog that says "Connecting... Sending Password" with Log and Cancel buttons. The log shows this: --> WvDial: Internet dialer version 1.60 --> Cannot get information for serial port. --> Initializing modem. --> Sending: ATZ ATZ OK --> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0 OK --> Modem initialized. --> Please enter password (or empty password to stop): --> Configuration does not specify a valid login name. The PDA-Net DUN protocol is running and shows no error. Any ideas? Any help is much appreciated.

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• Can't connect to hidden network with BCM4313

  - by poomerang

  The wireless works fine with all the other wi-fi nets I have tried, the only problem is with this hidden network. I should add it's the only hidden network I've tried, so I am not sure if the problem is it being hidden or somethings else, but I've checked the settings of NetworkManager against another Ubuntu system (which can connect) and they appear to be the same, passphrase included. The network is using WPA2 Personal with AES encryption, I don't know how to check this setting but I believe it's the usual for WPA2, and therefore usually not a problem. Also, I can connect through ethernet, which should exclude any blacklisting of my device, I believe. I usually use brcmsmac drivers, I've tried also STA but the result is the same. I've also tried the suggestion from Unable to connect to hidden SSID with no luck output of lspci -v is 03:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01) Subsystem: Askey Computer Corp. Device 7175 Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at d4000000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: brcmsmac Kernel modules: bcma, brcmsmac

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• Trying to install Canon LBP7750Cdn driver on Ubuntu 12.04

  - by Gideon

  I'n new to Ubuntu/Linux and had significant difficulties while attempting to configure my printer to work. The automatic driver pairing wizard which Ubuntu uses to identify and install the appropriate drivers did not find my printer's driver. I managed to get it to print when I manually select the generic configuration and checked the PCL6 configuration. However, the printer driver wizard does provide a list of Canon printers and actually do specify my printer as LBP7750C (minus the "dn" at the end, I'm assuming its because duplex ability and networking is not present on all the models - I'm not sure if this could be the source of the problem), but in selecting this option and trying to print I receive this message: Idle - /usr/lib/cups/filter/foomatic-rip failed I searched for this similar problem which other users might have encountered, but while there where plenty of such cases, they all had different resolutions and were all related to HP printers. Canon actually do provide a driver for my printer, but it comes with no installation instructions unless you consider yourself an experienced CUPS guru. Seriously. If anyone can help me solve this foomatic-rip failed problem I'd be really grateful - and I'm sure many other folks too. [BTW, can't Canonical fix this type of thing for the next Ubuntu release? - I't seems like a small problem but it causes many problems and countles hours of production time loss.] Thanks in advance.

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• Firmware/driver for Broadcom wifi card, PowerBook G4 running Ubuntu 12.04 [duplicate]

  - by user107831

  This question already has an answer here: How to Install Broadcom Wireless Drivers 40 answers This is my first time working with Ubuntu (or Linux), so please be patient. I am running Ubuntu 12.04-powerpc "Precise Pangolin" on a Mac PowerBook G4 with 1.67GHz processor. The firmware/driver for the wifi card is missing. For reasons not worth explaining, I cannot physically plug the computer into the network. I have another computer, a MacBook Pro running OSX, from which I can download files and port them by USB thumb drive. The wifi card in the PowerBook G4 is by Broadcom. The chip is BCM4306, rev. 3. The PCI number is 14e4:4302. I have downloaded b43-fwcutter_015-14_powerpc.deb and dropped it into the Home folder on the Ubuntu machine. However, it will not install. When I double-click, it opens with Ubuntu SoftwareCenter, but the "Install" button is inactive: I can't click it. There's a message beside the inactive button saying, "An older version of 'b43-fwcutter' is available in your normal software channels. Only install this file if you trust the origin." If I "right-click" the .deb file and open with Archive Manager, it shows me the "DEBIAN" and "usr" folders, but I'm unsure what to do from there...and fairly certain this is not the right way to do things. Maybe I have the wrong version of b43-fwcutter for my machine/version of Ubuntu? The documentation for this problem is a mess. It refers to all sorts of out-of-date Ubuntu versions and to an array of different "cutter" and firmware files. Maybe I'd be able to figure this out if I were a more seasoned Ubuntu user, but I have no idea why Sofware Center won't let me do the install. I would be VERY grateful for an explanation of how to get the wifi card working on this machine again. Thank you!

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• How can I get started using TDD to code some simple functionality?

  - by Gabriel

  I basically have the gist of TDD. I'm sold that it's useful and I've got a reasonable command of the MSTEST framework. However, to date I have not been able to graduate to using it as a primary development method. Mostly, I use it as a surrogate for writing console apps as test drivers (my traditional approach). The most useful thing about it for me is the way it absorbs the role of regression testing. I have not yet built anything yet that specifically isolates various testable behaviors, which is another big part of the picture I know. So this question is to ask for pointers on what the first test(s) I might write for the following development task: I want to produce code that encapsulates task execution in the fashion of producer/consumer. I stopped and decided to write this question after I wrote this code (wondering if I could actually use TDD for real this time) Code: interface ITask { Guid TaskId { get; } bool IsComplete { get; } bool IsFailed { get; } bool IsRunning { get; } } interface ITaskContainer { Guid AddTask(ICommand action); } interface ICommand { string CommandName { get; } Dictionary<string, object> Parameters { get; } void Execute(); }

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• notification icons in Gnome Shell cause lag

  - by Relik

  Before marking this as a duplicate please read my question throughly. OK I am having a bit of a problem with Gnome Shell (3.3.90); Any time there are any icons in the bottom notification bar it causes massive lag when opening/closing and interacting with the Activities panel. If I close all applications that have a notification icon the lag goes away 100%. In My case it's drop box, but any program that requires a icon in the notification area will cause this issue to happen. I am using an AMD A6-3420M running Catalyst 11.11, however I can confirm that this is not a driver issue. I had the same issue on a system running a GeForce 8600GT,and a HD6850, and there is another question on here titled "Gnome Shell lags after a while" where the user is having the same exact issue and He is also using a nVidia card, a 9800GT to be specific. Please, this question has been asked several time and every time people say its a fglrx issue and close the question, or they mark the question as a duplicate and link to a question that says its an fglrx issue. This is not a driver issue, I understand that the AMD drivers caught heat for quite some time for Gnome Shell compatibility issues but those issues have been resolved. Aside from this issue Gnome Shell runs beautiful on my HD650, my A6-3420M, and my 8600GT. Having said that, does anyone know how to correct this issue? Closing Drop Box is not an option for me either.

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• Internet is far slower in Ubuntu than Windows 7 on dual-booted machine

  - by Tim

  Edit: I'll leave the original post as-is, but after further investigation, it appears that the problem is something to do with my wi-fi card. Speeds are normal when I connect via cable. Edit 2: Problem was solved. It was something to do with the wireless card drivers. I normally use Windows 7 on my laptop and have internet speeds that are normally about 15-20 Mb/s. I have recently dual-booted with Ubuntu 12.10, and have noticed that internet speeds are drastically slower in Ubuntu. When tested, speeds range from 0.2-2 Mb/s, although occasionally being significantly faster than that or even stopping completely for short periods of time. I've also noticed that when first booting into Ubuntu, speeds start fairly fast, and drop to incredibly slow with a few seconds to a few minutes. There's still some possibility that the issue may be with my ISP, as things seem slower than usual even in Windows, but I suspect that it is related to Ubuntu, as things are far slower in Ubuntu than in Windows. I'm wondering, what could be the cause of this? Potentially relevant information: -I've dual booted before on this machine with earlier versions of Ubuntu (different ISP at the time) with no problem. ISP: Rogers (Major Canadian ISP) System info (Gateway NV53a Laptop): Operating System MS Windows 7 Home Premium 64-bit CPU AMD Phenom II N970 Caspian 45nm Technology RAM 6.00 GB Dual-Channel DDR3 @ 664MHz (9-9-9-24) Motherboard Gateway SJV51_DN (Socket S1G4) Graphics Generic PnP Monitor (1366x768@60Hz) ATI Mobility Radeon HD 4250 (Acer Incorporated [ALI]) Hard Drives 733GB TOSHIBA TOSHIBA MK7559GSXP ATA Device (SATA) Networking info: Connected through Wi-Fi Atheros AR5B97 Wireless Network A

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• Should ATI catalyst be installed for sake of openCL?

  - by G Sree Teja Simha

  I have a HP Envy 4 1025tx with Hybrid graphics. Although this is a 64bit system, I've installed 32bit Ubuntu on it for some reasons.(Hybrid graphics don't do well with 64bit Ubuntu.-"Some one on some forum") I had heating problems with the GPU but I've fixed them all with vgaswitcheroo. But now I wanted to use my Blender on my Ubuntu. To my surprise Blender didn't detect the dedicated 7670m card in my machine. I've confirmed with cat /sys/kernel/debug/vgaswitcheroo/switch Both IGD and DIS were up and running. I dont seem to have libopencl on my /usr/lib even though my synaptic manager says that I have installed it. I'm not quite sure what I've installed. It says that I've installed "ocl-icd-libopencl1". So my question is... Do I have opencl on my system? If not do I have to get propreitary ATI drivers for sake of opencl(fglrx wrecks up my unity totally on my system I need directions to fix it if this is the choice)? Should I get a 64bit Ubuntu installed on this system?

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