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• How do I enable Scroll Lock?

  - by Anton Ciprian Vasilache

  I need to enable scroll lock so I can toggle lights on my keyboard. This works on Arch.Funny thing it doesn't work on Ubuntu. http://linuxtechie.wordpress.com/2008/04/07/getting-scroll-lock-to-work-in-ubuntu/ $ xmodmap -e ‘add mod3 = Scroll_Lock’ xmodmap: unknown command on line commandline:1 xmodmap: unable to open file 'mod3' for reading xmodmap: unable to open file '=' for reading xmodmap: unable to open file 'Scroll_Lock’' for reading xmodmap: 4 errors encountered, aborting.

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• White screen on webcam site using Flash Player

  - by glenn

  I browsed a webcam site with flash player 10 and it works perfectly. But there is a private chat section and when I enter it I see a big white rectangle where the webcam and chat box should be. What is the problem - it is definitely the flash player, as the page does not prompt me to download the latest flash player... The site was working fine until last week. Does anybody know how to Re-install flash player?

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• Upgrade to Ubuntu 13.10 in a VirtualBox: Gnome desktop not working

  - by Xavier

  I had Ubuntu 13.04 running in a VirtualBox (the host is WinXP). I've upgraded it to 13.10 but I've some issues: Gnome desktop is not working correctly (I can log in but the main menu bar remains empty - I can only log out with CTRL-ALT-BACKSPACE) I cannot build and install the VirtualBox Guest Addons: When trying to build it, it says: me@virtuntu:/etc/init.d$ sudo ./vboxadd setup Removing existing VirtualBox DKMS kernel modules ...done. Removing existing VirtualBox non-DKMS kernel modules ...done. Building the VirtualBox Guest Additions kernel modules The headers for the current running kernel were not found. If the following module compilation fails then this could be the reason. Building the main Guest Additions module ...done. Building the shared folder support module ...fail! (Look at /var/log/vboxadd-install.log to find out what went wrong) Doing non-kernel setup of the Guest Additions ...done. In the log file, I see the following error: /tmp/vbox.0/dirops.c:292:5: error: unknown field ‘readdir’ specified in initializer .readdir = sf_dir_read, ^ /tmp/vbox.0/dirops.c:292:5: warning: initialization from incompatible pointer type [enabled by default] /tmp/vbox.0/dirops.c:292:5: warning: (near initialization for ‘sf_dir_fops.flush’) [enabled by default] make[2]: *** [/tmp/vbox.0/dirops.o] Erreur 1 make[1]: *** [_module_/tmp/vbox.0] Erreur 2 make: *** [vboxsf] Erreur 2 Creating user for the Guest Additions. Anyone had a similar experience? Any clue to help me? Thanks a lot!

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• black screen and blinking cursor for a while in ubuntu 12.04 during boot

  - by Soumyadip Mukherjee

  I've installed ubuntu 12.04.1 "rock solid" \m/ everything works fine apart from the fact that during startup...the usual purple screen and ubuntu logo doesnt appear...only a black screen and blinking cursor is visible...then after a while for a fraction of a second the ubuntu logo and purple screen comes and disappear to the login page...i tried plymouth but it didnt help in solving the problem...but i did end up changing the logo to a more artistic one :) any one plz help...my ubuntu is installed on my asus 1225c netbook.. thank you

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• Ubuntu 12.10 Nvidia GT555M Bumblebee

  - by herczigem

  I have laptop with Nvidia GT 555M video card. System Ubuntu 12.10, kernel Linux 3.5.0-17-generic step what i do: sudo add-apt-repository ppa:bumblebee/stable sudo add-apt-repository ppa:ubuntu-x-swat/x-updates sudo apt-get update sudo apt-get install bumblebee bumblebee-nvidia restart system optirun glxgears This message give me: Cannot access secondary GPU - error: Could not load GPU driver Aborting because fallback start is disabled. Open sudo gedit /etc/bumblebee/bumblebee.conf and change Driver= to Driver=nvidia and KernelDriver=nvidia-current to KernelDriver=nvidia. Restart the system and run optirun glxgears. This message gives me: The Bumblebee daemon has not been started yet or the socket path /var/run/bumblebee.socket was incorrect. Could not connect to bumblebee daemon - is it running? Anybody have idea?!

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• How to share an USB device(scanner) over network (from Win to Ubuntu)?

  - by B. Roland

  Hi! I have a special thing: I want to share my scanner over the network. The scanner is connected to a Win7 machine, but I want to use it from Ubuntu 10.04... I found some methods: USB over Network - it can handle Linux Windows; and Windows Windows it has Windows (and Win CE) & Linux server, but it has only Windows client, their Linux client is coming soon - that's a drag :( - it is not free, but what uses Windows, what is free? USBip - to Linux Linux, it is free, and nice I'm looking for the other way, what can handle Win Linux thing... I prefer free things, but that thing is maybe not free...

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• How to setup ATI Mobility Radeon HD 4650?

  - by Thi An

  I'm currently using Ubuntu 12.04 64bit. After installing ATI/AMD proprietary FGLRX graphics drivers via Additional Drivers, I checked the status of my VGA card using lspci -v. Here's the output: 02:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI M96 [Mobility Radeon HD 4650] (prog-if 00 [VGA controller]) Subsystem: Dell Device 0456 Flags: bus master, fast devsel, latency 0, IRQ 46 Memory at d0000000 (32-bit, prefetchable) [size=256M] I/O ports at 2000 [size=256] Memory at cfef0000 (32-bit, non-prefetchable) [size=64K] [virtual] Expansion ROM at cfe00000 [disabled] [size=128K] Capabilities: Kernel driver in use: fglrx_pci Kernel modules: fglrx, radeon As mentioned in the title, my VGA card is 1GB and yet my computer only recognizes 256MB. My question is: "How to make my computer fully recognize the capacity of my ATI Mobility Radeon HD 4650 (1GB)?"

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• How do I get an Acer Aspire One D270 working?

  - by ronnie

  I was planning to buy Acer Aspire One D270 within a few days and as everybody installs linux on their netbook I was also planning to do that. Now, my question is how is Acer's hardware compatibility with linux and specifically in respect to the new Acer Aspire One D270. Has anybody tried installing linux on these new netbooks. It will be a great help if a D270 user can share his/her experience with linux usage. I read on some forums that there is some linux driver issue with Intel GMA 3600 and that people are not able to adjust their brightness. So, as I am a linux noob is this a major issue or not. Specs: RAM : 2Gb DDR3 Processor: Intel N2600(Cedar Trail) Graphics: Intel GMA 3600 HardDisk: 320Gb 5400 rpm

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• Desktop background won't change until restart

  - by Ben

  I'm new to Ubuntu and indeed Linux systems. I have 11.04 installed on my laptop. Here's the problem. When i select a picture for the desktop background, it says that Desktop Background has been changed but the changes do not apply right away. It is only after I have restarted the system that the changes will appear. This did not happen before. When i first started using this OS a few months ago the changes applied immediately. So what have i done that made this start acting wonky. Thank you for any help.

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• Jupiter Changes Display when using volume key bindings

  - by user87797

  I recently downloaded jupiter on ubuntu 12.04 ASUS U36JC and I noticed that my display would switch from clone to exterior to clone everytime that I used the keys that control the volume. Hit "function volume down" and the screen goes blank, hit "function volume up" and the display come back. This only happens when I am running jupiter and I assume there is a key binding issue, but I don't know how to fix it. No options other than the regular ones show up in the keyboard settings under system tools.

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• Filezilla Install Problem: Hash Sum Mismatch

  - by kyleskool

  I'm new to the Ubuntu scene, and I tried to install Filezilla today by going to terminal and typing "sudo apt-get install filezilla", and got this error: Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/universe/w/wxwidgets2.8/libwxbase2.8-0_2.8.12.1-6ubuntu2_amd64.deb Hash Sum mismatch Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/universe/w/wxwidgets2.8/libwxgtk2.8-0_2.8.12.1-6ubuntu2_amd64.deb Hash Sum mismatch Failed to fetch http://universe/t/tinyxml/libtinyxml2.6.2_2.6.2-1build1_amd64.deb Hash Sum mismatch Failed to fetch http://universe/f/filezilla/filezilla-common_3.5.3-1ubuntu2_all.deb Hash Sum mismatch Failed to fetch http://universe/f/filezilla/filezilla_3.5.3-1ubuntu2_amd64.deb Hash Sum mismatch E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing? Running it again with "--fix-missing" appended to the command didn't work, nor did running apt-get update. Any suggestion? Thanks!

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• Ubuntu 12.04 OpenCL with Intel and Radeon?

  - by Steve

  I want to setup my Ubuntu 12.04 with OpenCL(Open Computing Language) support for i7 2600k and Radeon HD5870. My Monitor is connected to the integrated Graphics of the i7. Intel OpenCL SDK is installed and working. Iteration of avaliable OpenCL devices shows 2 entries for Intel. As recommended I installed AMD APP SDK 2.6 first and then the fglrx driver. I installed fglrx from Ubuntu repositories. This works fine till here. When I run aticonfig --inital -f and restart the system I get into trouble. Xorg starts only in low-graphics mode. cat /var/log/Xorg.0.log [ 21.201] X.Org X Server 1.12.2 Release Date: 2012-05-29 [ 21.201] X Protocol Version 11, Revision 0 [ 21.201] Build Operating System: Linux 2.6.24-29-xen x86_64 Ubuntu [ 21.201] Current Operating System: Linux chimera 3.2.0-24-generic #39-Ubuntu SMP Mon May 21 16:52:17 UTC 2012 x86_ [ 21.201] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=c137757b-486b-4514-9dfe-00c97662 [ 21.201] Build Date: 05 June 2012 08:35:55AM [ 21.201] xorg-server 2:1.12.2+git20120605+server-1.12-branch.aaf48906-0ubuntu0ricotz~precise (For technical suppor [ 21.201] Current version of pixman: 0.26.0 [ 21.201] Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. [ 21.201] Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. [ 21.201] (==) Log file: "/var/log/Xorg.0.log", Time: Fri Jun 8 14:22:36 2012 [ 21.247] (==) Using config file: "/etc/X11/xorg.conf" [ 21.247] (==) Using system config directory "/usr/share/X11/xorg.conf.d" [ 21.450] (==) ServerLayout "aticonfig Layout" [ 21.450] (**) |-->Screen "aticonfig-Screen[0]-0" (0) [ 21.450] (**) | |-->Monitor "aticonfig-Monitor[0]-0" [ 21.451] (**) | |-->Device "aticonfig-Device[0]-0" [ 21.451] (==) Automatically adding devices [ 21.451] (==) Automatically enabling devices [ 21.466] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist. [ 21.466] Entry deleted from font path. [ 21.466] (WW) The directory "/usr/share/fonts/X11/100dpi/" does not exist. [ 21.466] Entry deleted from font path. [ 21.466] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist. [ 21.466] Entry deleted from font path. [ 21.473] (WW) The directory "/usr/share/fonts/X11/100dpi" does not exist. [ 21.473] Entry deleted from font path. [ 21.473] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist. [ 21.473] Entry deleted from font path. [ 21.473] (WW) The directory "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType" does not exist. [ 21.473] Entry deleted from font path. [ 21.473] (==) FontPath set to: /usr/share/fonts/X11/misc, /usr/share/fonts/X11/Type1, built-ins [ 21.473] (==) ModulePath set to "/usr/lib/x86_64-linux-gnu/xorg/extra-modules,/usr/lib/xorg/extra-modules,/usr/lib [ 21.473] (II) The server relies on udev to provide the list of input devices. If no devices become available, reconfigure udev or disable AutoAddDevices. [ 21.473] (II) Loader magic: 0x7f0ad3b9ab00 [ 21.473] (II) Module ABI versions: [ 21.473] X.Org ANSI C Emulation: 0.4 [ 21.473] X.Org Video Driver: 12.0 [ 21.473] X.Org XInput driver : 16.0 [ 21.473] X.Org Server Extension : 6.0 [ 21.473] (--) PCI:*(0:0:2:0) 8086:0122:1458:d000 rev 9, Mem @ 0xfb800000/4194304, 0xe0000000/268435456, I/O @ 0x00 [ 21.473] (--) PCI: (0:1:0:0) 1002:6898:1787:2289 rev 0, Mem @ 0xd0000000/268435456, 0xfbdc0000/131072, I/O @ 0x000 [ 21.473] (II) Open ACPI successful (/var/run/acpid.socket) [ 21.473] (II) "extmod" will be loaded by default. [ 21.473] (II) "dbe" will be loaded by default. [ 21.473] (II) "glx" will be loaded. This was enabled by default and also specified in the config file. [ 21.473] (II) "record" will be loaded by default. [ 21.473] (II) "dri" will be loaded by default. [ 21.473] (II) "dri2" will be loaded by default. [ 21.473] (II) LoadModule: "glx" [ 21.732] (II) Loading /usr/lib/x86_64-linux-gnu/xorg/extra-modules/extra-modules.dpkg-tmp/modules/extensions/libgl [ 21.934] (II) Module glx: vendor="Advanced Micro Devices, Inc." [ 21.934] compiled for 6.9.0, module version = 1.0.0 [ 21.934] (II) Loading extension GLX [ 21.934] (II) LoadModule: "extmod" [ 22.028] (II) Loading /usr/lib/xorg/modules/extensions/libextmod.so [ 22.041] (II) Module extmod: vendor="X.Org Foundation" [ 22.041] compiled for 1.12.2, module version = 1.0.0 [ 22.041] Module class: X.Org Server Extension [ 22.041] ABI class: X.Org Server Extension, version 6.0 [ 22.041] (II) Loading extension MIT-SCREEN-SAVER [ 22.041] (II) Loading extension XFree86-VidModeExtension [ 22.041] (II) Loading extension XFree86-DGA [ 22.041] (II) Loading extension DPMS [ 22.041] (II) Loading extension XVideo [ 22.041] (II) Loading extension XVideo-MotionCompensation [ 22.041] (II) Loading extension X-Resource [ 22.041] (II) LoadModule: "dbe" [ 22.041] (II) Loading /usr/lib/xorg/modules/extensions/libdbe.so [ 22.066] (II) Module dbe: vendor="X.Org Foundation" [ 22.066] compiled for 1.12.2, module version = 1.0.0 [ 22.066] Module class: X.Org Server Extension [ 22.066] ABI class: X.Org Server Extension, version 6.0 [ 22.066] (II) Loading extension DOUBLE-BUFFER [ 22.066] (II) LoadModule: "record" [ 22.066] (II) Loading /usr/lib/xorg/modules/extensions/librecord.so [ 22.077] (II) Module record: vendor="X.Org Foundation" [ 22.077] compiled for 1.12.2, module version = 1.13.0 [ 22.077] Module class: X.Org Server Extension [ 22.077] ABI class: X.Org Server Extension, version 6.0 [ 22.077] (II) Loading extension RECORD [ 22.077] (II) LoadModule: "dri" [ 22.077] (II) Loading /usr/lib/xorg/modules/extensions/libdri.so [ 22.082] (II) Module dri: vendor="X.Org Foundation" [ 22.082] compiled for 1.12.2, module version = 1.0.0 [ 22.082] ABI class: X.Org Server Extension, version 6.0 [ 22.082] (II) Loading extension XFree86-DRI [ 22.082] (II) LoadModule: "dri2" [ 22.082] (II) Loading /usr/lib/xorg/modules/extensions/libdri2.so [ 22.083] (II) Module dri2: vendor="X.Org Foundation" [ 22.083] compiled for 1.12.2, module version = 1.2.0 [ 22.083] ABI class: X.Org Server Extension, version 6.0 [ 22.083] (II) Loading extension DRI2 [ 22.083] (II) LoadModule: "fglrx" [ 22.083] (II) Loading /usr/lib/x86_64-linux-gnu/xorg/extra-modules/extra-modules.dpkg-tmp/modules/drivers/fglrx_dr [ 22.399] (II) Module fglrx: vendor="FireGL - ATI Technologies Inc." [ 22.399] compiled for 1.4.99.906, module version = 8.96.4 [ 22.399] Module class: X.Org Video Driver [ 22.399] (II) Loading sub module "fglrxdrm" [ 22.399] (II) LoadModule: "fglrxdrm" [ 22.399] (II) Loading /usr/lib/x86_64-linux-gnu/xorg/extra-modules/extra-modules.dpkg-tmp/modules/linux/libfglrxdr [ 22.445] (II) Module fglrxdrm: vendor="FireGL - ATI Technologies Inc." [ 22.445] compiled for 1.4.99.906, module version = 8.96.4 [ 22.445] (II) ATI Proprietary Linux Driver Version Identifier:8.96.4 [ 22.445] (II) ATI Proprietary Linux Driver Release Identifier: 8.96.7 [ 22.445] (II) ATI Proprietary Linux Driver Build Date: Mar 12 2012 13:06:50 [ 22.445] (++) using VT number 7 [ 22.445] (WW) Falling back to old probe method for fglrx [ 23.043] (II) Loading PCS database from /etc/ati/amdpcsdb [ 23.082] (--) Chipset Supported AMD Graphics Processor (0x6898) found [ 23.107] (WW) fglrx: No matching Device section for instance (BusID PCI:0@1:0:1) found [ 23.107] (II) fglrx: intel VGA device detected, load intel driver. [ 23.107] (II) LoadModule: "intel" [ 23.211] (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so [ 23.475] (II) Module intel: vendor="X.Org Foundation" [ 23.475] compiled for 1.12.2, module version = 2.19.0 [ 23.475] Module class: X.Org Video Driver [ 23.475] ABI class: X.Org Video Driver, version 12.0 [ 23.476] ukiDynamicMajor: found major device number 249 [ 23.476] ukiDynamicMajor: found major device number 249 [ 23.476] ukiOpenByBusid: Searching for BusID PCI:1:0:0 [ 23.476] ukiOpenDevice: node name is /dev/ati/card0 [ 23.476] ukiOpenDevice: open result is 8, (OK) [ 23.476] ukiOpenByBusid: ukiOpenMinor returns 8 [ 23.476] ukiOpenByBusid: ukiGetBusid reports PCI:1:0:0 [ 23.540] (WW) PowerXpress feature is not supported [ 23.540] (EE) No devices detected. [ 23.540] (==) Matched intel as autoconfigured driver 0 [ 23.540] (==) Matched vesa as autoconfigured driver 1 [ 23.540] (==) Matched fbdev as autoconfigured driver 2 [ 23.540] (==) Assigned the driver to the xf86ConfigLayout [ 23.540] (II) LoadModule: "intel" [ 23.540] (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so [ 23.540] (II) Module intel: vendor="X.Org Foundation" [ 23.540] compiled for 1.12.2, module version = 2.19.0 [ 23.540] Module class: X.Org Video Driver [ 23.540] ABI class: X.Org Video Driver, version 12.0 [ 23.540] (II) UnloadModule: "intel" [ 23.540] (II) Unloading intel [ 23.540] (II) Failed to load module "intel" (already loaded, 32522) [ 23.540] (II) LoadModule: "vesa" [ 23.583] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so [ 23.620] (II) Module vesa: vendor="X.Org Foundation" [ 23.620] compiled for 1.12.2, module version = 2.3.1 [ 23.620] Module class: X.Org Video Driver [ 23.620] ABI class: X.Org Video Driver, version 12.0 [ 23.620] (II) LoadModule: "fbdev" [ 23.620] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so [ 23.661] (II) Module fbdev: vendor="X.Org Foundation" [ 23.661] compiled for 1.12.2, module version = 0.4.2 [ 23.661] Module class: X.Org Video Driver [ 23.661] ABI class: X.Org Video Driver, version 12.0 [ 23.661] (II) ATI Proprietary Linux Driver Version Identifier:8.96.4 [ 23.661] (II) ATI Proprietary Linux Driver Release Identifier: 8.96.7 [ 23.661] (II) ATI Proprietary Linux Driver Build Date: Mar 12 2012 13:06:50 [ 23.661] (II) intel: Driver for Intel Integrated Graphics Chipsets: i810, i810-dc100, i810e, i815, i830M, 845G, 854, 852GM/855GM, 865G, 915G, E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM, Pineview G, 965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33, GM45, 4 Series, G45/G43, Q45/Q43, G41, B43, B43, Clarkdale, Arrandale, Sandybridge Desktop (GT1), Sandybridge Desktop (GT2), Sandybridge Desktop (GT2+), Sandybridge Mobile (GT1), Sandybridge Mobile (GT2), Sandybridge Mobile (GT2+), Sandybridge Server, Ivybridge Mobile (GT1), Ivybridge Mobile (GT2), Ivybridge Desktop (GT1), Ivybridge Desktop (GT2), Ivybridge Server, Ivybridge Server (GT2) [ 23.661] (II) VESA: driver for VESA chipsets: vesa [ 23.661] (II) FBDEV: driver for framebuffer: fbdev [ 23.661] (++) using VT number 7 [ 23.661] (WW) xf86OpenConsole: setpgid failed: Operation not permitted [ 23.661] (WW) xf86OpenConsole: setsid failed: Operation not permitted [ 23.661] (WW) Falling back to old probe method for fglrx [ 23.661] (II) Loading PCS database from /etc/ati/amdpcsdb [ 23.661] (WW) Falling back to old probe method for vesa [ 23.661] (WW) Falling back to old probe method for fbdev [ 23.661] (EE) No devices detected. [ 23.661] Fatal server error: [ 23.661] no screens found [ 23.661] Please consult the The X.Org Foundation support at http://wiki.x.org for help. [ 23.661] Please also check the log file at "/var/log/Xorg.0.log" for additional information. [ 23.661] xorg.conf: cat /etc/X11/xorg.conf Section "ServerLayout" Identifier "aticonfig Layout" Screen 0 "aticonfig-Screen[0]-0" 0 0 EndSection Section "Module" Load "glx" EndSection Section "Monitor" Identifier "aticonfig-Monitor[0]-0" Option "VendorName" "ATI Proprietary Driver" Option "ModelName" "Generic Autodetecting Monitor" Option "DPMS" "true" EndSection Section "Device" Identifier "aticonfig-Device[0]-0" Driver "fglrx" BusID "PCI:1:0:0" EndSection Section "Screen" Identifier "aticonfig-Screen[0]-0" Device "aticonfig-Device[0]-0" Monitor "aticonfig-Monitor[0]-0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection Is there a way to get the Radeon to work in a hybrid configuration or to use the Radeon as an OpenCL only device?

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• Java Not Recognized As Default Application

  - by John

  I just installed java according to this article, and 'java -version' displays java version "1.7.0_07" Java(TM) SE Runtime Environment (build 1.7.0_07-b10) Java HotSpot(TM) 64-Bit Server VM (build 23.3-b01, mixed mode) 'update-alternatives --config java' returns this: There are 2 choices for the alternative java (providing /usr/bin/java). Selection Path Priority Status ------------------------------------------------------------ 0 /usr/bin/gij-4.6 1046 auto mode 1 /usr/bin/gij-4.6 1046 manual mode * 2 /usr/local/java/jdk1.7.0_07/bin/java 1 manual mode Press enter to keep the current choice[*], or type selection number: with update-alternatives --config javac (or javaws) returning similarly. however java isn't listed in the default applications menu when I click on a .jar file and go to "open with application". I tried to install java this way, and on the update-alternatives part of the command returned me: /etc/alternatives/[java,javac,javaws] is dangling, it will be updated with best choice I just confirmed that I can use java, as 'java -jar file.jar' does work. Just figured that I'd mention it, don't know why I didn't before, but when I right click on a .jar file, java 7 run-time isn't even listed there, it seems that the file-manager isn't recognizing it as a program, but it is there, and it does work...

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• Recovering from 'grub rescue>' crash

  - by DocSalvage

  I did a dumb thing... I forgot that Ubuntu 10.04 (Lucid) switched to Grub2 which puts a ton of *.mod files (kernel modules) in /boot/grub. I thought they were soundtrack files put there erroneously and moved them. Needless to say, the next reboot was traumatic. I was presented with something I had no memory of ever seeing... a 'grub rescue' prompt. With the help of how-to-fix-error-unknown-filesystem-grub-rescue however, I was able to recover... Discovered that Grub Rescue does not have 'cd', 'cp' or any other filesystem commands except its own variation of 'ls'. So first I had to find the partition with the /boot directory containing vmlinuz... and other boot image files... (failed attempts not shown) grub rescue> ls (hd0,4) (hd0,3) (hd0,2) (hd0,1) grub rescue> ls (hd0,2)/boot ... grub ... initrd.img-2.6.32-33-generic ... vmlinuz-2.6.32-33-generic Then manually boot from 'grub rescue' prompt (no command history either!)... grub rescue> set root=(hd0,2)/boot grub rescue> insmod linux grub rescue> linux (hd0,2)/boot/vmlinuz-2.6.32-33-generic grub rescue> initrd (hd0,2)/boot/initrd.img-2.6.32-33-generic grub rescue> boot This boots and crashes to the BusyBox prompt which DOES have some rudimentary filesystem commnds. Then I moved the *.mod files back to the /boot/grub directory... busybox> cd /boot busybox> mv mod/* grub busybox> reboot The reboot was successful but that was a lot of work. Is there an easier way?

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• *Un*installing with Ubuntu Software Center (Centre) doesn't work on 64-bit 12.04.1

  - by likethesky

  Not sure if I'm doing something wrong, or if the .deb package I'm installing is broken in some way (I've built it, using NetBeans 7.2), or if indeed this is a bug in Software Center. When I install this particular 32-bit .deb on Ubuntu 10.04 LTS--all updates applied--(where it was built), GDebi shows it and has an 'Uninstall' button next to it. So it works fine to uninstall it there, via the GDebi GUI. However, when I install it on 12.04.1 LTS--all updates applied--it installs fine, but then does not show up in Ubuntu Software Center as available to be uninstalled. No combination of searching finds it. However, I can from the command line, do sudo apt-get purge javafxapplication1 and it finds it and deletes it. The same thing happens when I build a 64-bit .deb and attempt to install it to the same (64-bit AMD) or a different 64-bit Ubuntu 12.04.1 system. So it seems to be isolated to this NetBeans-generated .deb and the 64-bit AMD build (though I haven't tried it on a 32-bit 12.04.1 install yet). These are all on VirtualBox VMs, btw, if that matters. Any way to 'clean up' my Software Center and see if it's something I've done to get it in this state? Could this behavior be due to how this particular .deb has been built? (It doesn't have an 'Installed-Size' control field, so I do get the "Package is of bad quality" warning when I install it--which I do by clicking 'Ignore and install' button.) If you want all the gory details about why this happening--a bug has been reported against NetBeans for this behavior here: http://javafx-jira.kenai.com/browse/RT-25486 (EDIT: Just to be clear, the app installs fine, runs fine, all works as intended--I just can't get that 'bad package' message to go away, and now... I also can't uninstall it via Software Center, but rather, need to use sudo apt-get purge to uninstall it, after it installs. /END EDIT) Thanks for any pointers. I'm happy to report this as a bug against Ubuntu Software Center/Centre too, if that's what it seems to be, just tell me where to do so (a link). I'm a relative Ubuntu, NetBeans, and JavaFX newbie, though a long-time programmer. If I report it as a bug, I'll try it on the 32-bit build of 12.04.1 as well. Also, if I should add any more detail to the bug reported against NetBeans above, let me know--or feel free to add it yourself to the bug report above, if you would like. Thanks again!

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• Jupiter seems to break multimonitor setup

  - by Philippe

  If Jupiter is in the startup my multimonitor setup will fail. Instead of two separate desktops the monitors will be mirrored, one over the other with the smaller notebook-desktop in the larger screen: After each new log-in I have to reset the Display settings in the "System Settings..." dialogue to two not mirrored screens, the changes don't seem to be saved. Given the the entry from xsession-errors /usr/lib/jupiter/scripts/resolutions: line 42: /var/jupiter/available_resolutions_LVDS: Permission denied I assumed that it's coming from Jupiter. Infact, if Jupiter is removed as startup application the desktop settings are fine. Any idea how to solve that issue?

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• Dell N7110 i7 overheats and doesn't boot when anything is plugged into the USB3 port

  - by Kostyantyn

  When i plug in any devices (mouse, keyboard) into usb 3.0 system dell n7110 overheats and fan goes crazy with terrible noise. So i'm using 1 usb 2.0 slot now with a usb hub. It doesn't solve the problem completely but system stays at a low fan rate for a longer time. I've tried to lower CPU frequency, but in my case (DELL INSPIRON N7110 i7 on Linux 3.0.0-14-generic #23-Ubuntu SMP Mon Nov 21 20:28:43 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux) CPU was pretty cool (51 C) and still the same horrible fan noise. Looks like there is no such problems with ubuntu 10.04 (but there're some other problems). Ubuntu even doesn't boot if anything is plugged into usb 3.0

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• Login timeout disable?

  - by Sk606

  How can I disable automatic timeout entries in the login screen? Allow me to explain. My typical experience goes something like this: I put my laptop to sleep, then wake it. When it wakes, it comes up with the login screen. I type in my password and it will usually reject it, with a message indicating the login timer has expired. I then enter my password a second time and it logs in. Not the end of the world, but annoying nonetheless. Any suggestions?

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• Nexus 7 Possibly Bricked

  - by user214186

  I have a 1st gen Nexus 7 (32GB). I used the steps at https://wiki.ubuntu.com/Nexus7/Installation to successfully install Ubuntu 13.04 desktop onto the tablet. It was working fine and then I decided to upgrade to Ubuntu Touch. I booted the tablet into fast boot mode but the commands 'adb devices' and 'sudo fastboot devices' would not see the device. I am performing these steps from an Ubuntu 12.04 desktop PC. Prior to installing 13.04 the device was seen fine. I made the mistake of performing the 'Device factory reset' step from https://wiki.ubuntu.com/Touch/Install - Step 2. Now when I try to boot the device I get the following: mount: mounting /dev on /root/dev failed: no such file or directory mount: mounting /dev on /root/sys failed: no such file or directory mount: mounting /proc on /root/proc failed: no such file or directory Targe filesystem doesn't have requested /sbin/init. No init found. Try passing init= bootarg. BusyBox v1.20.2 (Ubuntu 1:1.20.0-0ubuntu1) built-in shell (ash) Enter help for a list of built-in commands. (initramfs) I have searched the web but every reference to this problem is from people who still have ADB access to the device so they can recover by flashing the tablet again. I can attach a keyboard to the USB port and access the BusyBox console but I don't know what steps to do to recover from my error. Any suggestions would be helpful. Thanks

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• Will Xubuntu 12.10 also have amazon ads?

  - by Miguel Guasch

  and thanks in advance for your comments: I'm currently using Ubuntu 12.04, and quite happy with it. I'm using the Unity desktop, and I've got no major complaints. My problem/question is: I've been reading on the news, forums, and different websites that the new version in 12.10, which i'll eventually have to upgrade to if I plan on using Ubuntu, has a lens/amazon function on the dash that sends queries to amazon. Now, this disturbs me a bit, since I don't want to see "shopping recommendations" everytime I look for something, be they from amazon or from "future partners". Does this new "function" only apply to the Unity desktop? If I switch to the Xfce desktop, will I be able to "save myself" from sending search data to amazon and/or shopping recommendations from them? Or will I have to entirely switch distributions, in order to evade this? Again, many thanks in advance for your comments and/or help. Regards, Miguel.

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• Failing to upgrade to linux-image-3.0.0-26-generic

  - by Dan Lee

  When I try to upgrade linux-image-3.0.0-26-generic I get following problems: dpkg-deb (subprocess): data: internal bzip2 read error: 'DATA_ERROR' dpkg-deb: error: subprocess <decompress> returned error exit status 2 dpkg: error processing /var/cache/apt/archives/linux-image-3.0.0-26-generic_3.0.0-26.42_amd64.deb (--unpack): short read on buffer copy for backend dpkg-deb during `./lib/modules/3.0.0-26-generic/kernel/drivers/scsi/fnic/fnic.ko' No apport report written because MaxReports is reached already Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.0.0-26-generic /boot/vmlinuz-3.0.0-26-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.0.0-26-generic /boot/vmlinuz-3.0.0-26-generic Errors were encountered while processing: /var/cache/apt/archives/linux-image-3.0.0-26-generic_3.0.0-26.42_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1) A package failed to install. Trying to recover: dpkg: dependency problems prevent configuration of linux-image-generic: linux-image-generic depends on linux-image-3.0.0-26-generic; however: Package linux-image-3.0.0-26-generic is not installed. I don't know why this happens to me; earlier upgrades always worked without problems. Does anybody know how to fix this?

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• How to downgrade from PHP 5.4 to 5.3

  - by Burning the Codeigniter

  Recently I upgraded PHP to 5.4, but it seems to be failing on me because APC isn't working with it, however this gave me no choice but to downgrade to 5.3, how can I do this? I executed apt-get remove php5 and apt-get purge php5 then I removed the 5.4 repo from apt-get then executed apt-get install php5, it says it was installing 5.3, and I restarted php-fastcgi and php5-fpm but when I run php -v it says 5.4. How can I downgrade from 5.4 to 5.3? My server is running Ubuntu 11.04.

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• using egrep to find missing @ in log

  - by jols

  I am using the following command to find log entries that are the result of a log in to the email server: egrep '_login[^ ]' /var/log/exim_mainlog That works fine to find entries that contain content like this: P=esmtpa A=courier_login:[email protected] S=1573 id=f1cd08396,... But what I need to do is to change my grep statement, so that it finds single word logins that do not use the @ sign, like so: P=esmtpa A=courier_login:name S=1573 id=f1cd08396,... Where the log in before was "[email protected]", but in the second log entry, the log in used was only "name". Is this possible using grep or egrep, perhaps in some kind of a compound statement? Thanks much.

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• Ubuntu 12.04 booting into busybox after update

  - by Victor Alejandro Martinez

  Every time the system updates the kernel from 3.5.0-24 to 3.5.0-34 I get dropped into a busybox prompt at boot, but I can boot just fine using the previous kernel. I've tried all I know. I did a fsck.ext3 -f /dev/sdb2 using the alternate install CD. I've used boot-repair but to avail, I've checked for bad blocks but there are none. Should I purge the new kernel and use the old one instead? This is the output from boot-repair the first time, no purge. http://paste.ubuntu.com/5809230/

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• How to allocate unallocated space of hard disk in Ubuntu 12.4 after installation

  - by user171351

  How to allocate unallocated space of hard disk in Ubuntu 12.04 after installation. My system is running fine with Windows and Linux. I am using Windows rarely and for my official purpose I am using Ubuntu 12.04. I forgot to allocate around 100 GB of space while installing. Now 100 GB is free in HDD and its not usable. How can I allocate that free space as another volume without formatting the current OS?

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