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• How can I hard reset a USB device?

  - by Cory

  I have a USB device (a modem) that is really finicky. Sometimes it works fine, but other times it refuses to connect. The only solution I have found to fix it once it gets into a bad state is to physically unplug the device and plug it back in. However, I don't always have physical access to the machine it is plugged in on, so I'm looking for a way to do this through the command line. This post suggests running: sudo modprobe -w -r usb_storage; sudo modprobe usb_storage However I get an "unknown option -w" output. This slightly modified command: sudo modprobe -r usb_storage Fails with the message FATAL: Module usb_storage is in use. If I try to kill -9 the processes marked [usb-storage] before running they refuse to die (I think because they are deeply tied to the kernel). Anyone know of a way to do this? NOTE: I cross-posted this on superuser.com as I didn't know which was more appropriate. I will delete and/or link whichever one is answered first.

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• Mirroring Ubuntu on several systems in a computer lab

  - by Harvey Steck

  I am working in a new refugee school where the only Internet service available is a slow satellite connection. We are about to set up a computer lab (already have desktop systems and am about to install Ubuntu on them). I'm a newbie when it comes to Linux, but it seems a better alternative than pirated copies of Windows. I'd like to set up one Ubuntu system, and then mirror that system on perhaps ten to twenty other systems (all of which would be on an ethernet network). I expect to have an internet connection on the one system that I set up, but then it may be difficult to have enough bandwidth to go through all the same steps on the other ten systems. Can I set up the other ten or twenty computers to get all of their updates/upgrades/configuration from one master system? Can I also set things up so that students cannot change the configuration, install new programs, etc.? Appreciate any help you can give. -- Harvey

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• Problem installing UniversalIndentGUI

  - by DNikolov

  I need a GUI beautifier for C code. I've found UniversalIndentGUI on sourceforge. Downloaded a .deb file.Opened it with Ubuntu Software Center to install it but the button is grey and unclickable and there is a line saying Dependency is not satisfiable: libqscintilla2-3. I've installed via the Synaptic Package Manager libqscintilla2-5 but that didn't help. Is there any way to install the UniversalIndentGUI, the libqscintilla2-3 package or to some how work around the problem?

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• How do I remap the buttons on an Apple Mighty Mouse?

  - by Jonathan.

  I just started using Ubuntu instead of Windows, my initial reaction was "omg this is awful", but after a while it grew on me, and I don't plan on going back to Windows. However I have an Apple Mighty Mouse which I was given today, and the buttons on it don't quite work. Left and right click work, so does scrolling right and down, also the back button works. However the forward button goes back, and the scroll up button sometimes scrolls down, scrolling left just doesn't work. Is there a way to fix this? Like remap the buttons? I'm not entirely sure how the driver thing works in Ubuntu?

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• Video recording in cheese is slow

  - by Gaurav Butola

  cheese records at painful fps. video recording is really slow in cheese almost unusable. How can I increase the fps for cheese. I have HCL laptop with built in 1.3 MP camera 2.47 GHz i3 processor with 2 GB RAM. running maverick 32 bit. I installed camorama from software centre which has fine video (fps), but I cant seem to use it due to some error. So I doubt there is something to be tweaked with cheese itself.

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• make my Ubuntu 12.04 laptop visible on the network

  - by Andrew Boyd

  I'm ecstatically happy with my 12.04 on my laptop after loading it over my MS Vista... but there's just one thing, one little fly in the ointment.... While I can view our 2 Terabyte, shared hard-drive in the lounge (and copy files back and forth) I can't see my PC (when I boot up in Ubuntu 12.04) nor the Lubuntu computer connected to the TV (for movies, Youtube etc). Printing to the HP office jet on the PC doesnt work over the network either. Have had one dubious flirtation with Samba, which seems to be the only thing I've found that will 'work', however halfway through that "installation" everything just ground to a halt, the directions began to stop making sense... I was working from this page. Our Network consists of the following: Our Internet service is wirelessly sent to us from our provider to our dish on a pole. It comes into the house via an ethernet cable. We split it there to a phone, and to 6 other destinations (bedrooms, computers, and to another splitter in the lounge which has a wifi antennae and 4 ethernet ports). one port goes to the Lubuntu OS PC which is connected to the TV the second port goes to the 2 Terabyte harddrive (MS powered 'Mybooklive') (the other two are empty) My Ubuntu 12.04 laptop connects wirelessly to this splitter in the lounge. I know just enough about computers to get myself into an awful mess without too much trouble We usually can view friends' laptops when they get on our network (as they are invariably MS OS's) Our flatmate, who introduced us to Linux's computer is also invisible How can we make our Linux OS based computers visible on the network and share files and printing?

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• Ubuntu 13.10 AMD/ATI proprietary driver slow boot time, black screen after logging in and lengthy login/logout delays

  - by NahsiN

  Ubuntu 13.10 is causing me major headaches with my AMD/ATI HD 5770 GPU. Below is a list of problems I am currently encountering. 1) The boot time is extended by at least 25s after installing catalyst 13.4. Using open source radeon drivers, my boot time till the login screen is ~10s. With catalyst 13.4 installed, the boot time increases to ~35s. This was not the case in Ubuntu 13.04, 12.10 or 12.04. I have done the driver installation manually (instructions from wiki.cchtml.com) and using software center and there is no difference. I have not tried the catalyst 13.8 beta driver. 2) After manual installation of catalyst 13.4, I get stuck at a black screen after logging in. I have to purge fglrx to resolve the problem. I tried sudo amdconfig --initial -f but it didn't help. 3) The delay between logging in and unity being displayed is ~10-15s for BOTH open source and proprietary drivers. During the delay, it's just a black screen. Whenever I logout, there is again a ~10-15s delay with the login screen appearing stuck before lightdm allows me to enter my password again. This is ridiculous! Yes, I could stick with open source radeon drivers but I would like to install Steam and play my Valve collection on the machine. Is anybody else encountering similar issues?

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• Thunar not showing thumbnails in Openbox

  - by RanRag

  I am using openbox 3.5 and my file manager of choice is Thunar but the problem I am facing is thunar not showing thumbnails for folder,video files etc. My Thunar: You can see in the above image that thunar is not showing thumbnails for folders, files but it is showing for pdf and similar is the case for video files no thumbnails. So, what is wrong here am I missing some basic thunar config files. ranrag@ranrag:~$ echo $DESKTOP_SESSION openbox I looked into some forums and they mentioned that there is some dependency of tumbler with thunar but I have latest version of tumbler installed on my system. PS: I already tried thunar preferences but still no luck.

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• Changing permissions on serial port

  - by Terrik

  I'm using the Arduino IDE in Ubuntu, and am having issues with the serial port. It has worked in the past, but for reasons that may be unnecesary, I felt the need to change the ownership of some of the files from root ownership to my users ownership. This made the IDE work correctly, but I lost the ability to use the correct serial port. In the dev folder, the port I need is listed as permission 166. Someone (who is no longer in the area to help me) swapped the permissions to 666, which made it all work gloriously. However, it reverted back as soon as I restarted my computer, and if I now try to use the command: sudo chmod 666 ttyACM0 nothing happens. No error messages, but no permission change either. How can I change it, and how can I get it to change permanently. I apologize if this question is overly simplistic or unclear, I'm an ubuntu noob, and I wouldn't begrudge feedback!

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• Internal Mic Ubuntu 12.04 on Compaq Presario CQ50

  - by Genius FDE

  I have problem with the internal microphone not working on Ubuntu 12.04. It looks like a common problem on most of the laptops running ubuntu 12.04. I tried a lot of possible solutions available online but nothing seems to work! sudo aplay -l gives: **** List of PLAYBACK Hardware Devices **** card 0: NVidia [HDA NVidia], device 0: CONEXANT Analog [CONEXANT Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 By the way, the Laptop has no HDMI port! I've seen the same problem with Sony laptop but the mic was working with too much static noise. Thank you.

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• Graphical Email-client with Sent-emails -directory?

  - by hhh

  I asked this question here but without any answer. So I am now looking something to replace Evolution -email-client. So does there exist a graphical Email-client with Sent-directory? Or is it specified system-wide? P.s. I know Mutt has this feature but I cannot understand how graphical Email -clients work in this, perhaps I cannot just find this feature -- I don't know. Basically, I just want to see emails that I have sent. My email -client has many emails connected. Perhaps related I am also interested to have this kind of feature in Android -device, more here. Where do Sent -emails go in Evolution?

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• How can I change the default location of content directories (eg Pictures, Templates, Music) in my home folder?

  - by Casey

  I have multiple users on my home desktop. I am content with most of the default user directories, however I would like to make one change. I would like to setup a common directory for Music (ie /home/common/Music/) that is writable to all users and Nautilus/Dolphin/whatever recognizes as the user's Music directory. I know that it would involve changing the xdg user directory setup, but everything I see points that it is relative to the user's $HOME. Is there a way I can specify an absolute path?

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• Install squid3 + and eCAP module

  - by Hacker

  I want to install squid3 and eCAP module on my latest ubuntu. Squid installed well with command i followed these instructions. http://e-healthexpert.org/node/431 sudo apt-get install squid3 but how do i configure it to enable eCAP module ?. I need to give something like --enable-ecap option while installation, which i could not. Then i tried to manually install using http://code.google.com/p/squid-ecap-gzip/source/browse/wiki/Installation.wiki?r=24 but while installing squid3 it gives error. i.e. command sudo make gives some g++ error. SO how do i install it and configure for eCAP. please h

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• Flash player stops working in Firefox

  - by Alin

  First of all please be merciful as I am a 2 days ubuntu user. I've only used Windows OSs before. Hardware configuration -Quad Core Q6600 CPU -4 GB RAM -Geforce 8800GT 512 MB RAM -Seagate 320GB Harddisk I installed ubuntu x64 and everything went smooth. I had Adoble flash player installed from Ubuntu Software Center. The problem is that the flash videos on youtube (basically on all pages) looked pixelate. I use Firefox 3.6 that came with ubuntu by default. After reading around here I saw something about overriding hardware acceleration but that didn't work either. Or maybe I just didn't do it correctly. The problem was that if I opened 2-3 youtube tabs, when closing one of them, in 95% of the cases, the flash plugin would crash in remaining tabs and a black screen was instead of the video. After doing some more search I discovered the FlashAid extension for Firefox. I installed it and it made an update of flash plugin. Now the videos look good but now each time I watch a video, when switching to another one the flash plugin crashes and I can see insead of the vide the firefox message with Plugin has crasshed, refresh the page. Basically this is what I miss to have a complete pleasant ubuntu experience. Any ideas how to fix this? Thank you

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• Install using a Logitech Keyboard and mouse with bluetooth dongle?

  - by Ryan

  I'm trying to install 12.10 on my system, but my mouse and keyboard are not working during installation. I use the Logitech MX5500 Bluetooth mouse+keyboard combo with a Bluetooth dongle. My keyboard and mouse work in my UEFI bios, and during the Windows 7/8 installation. My keyboard also works in the Ubuntu screen that allows me to set options, install, use the live cd, etc, before boot. I'm wondering if anyone knows a way to get this dongle working during the installation process so that I can actually install 12.10.

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• Try out ubuntu on thinkpad x40 (via usb)?

  - by Oliver

  I am trying to try out ubuntu (i,e, install it within windows) on my thinkpad x40. I followed the instructions on how to create a bootable usb (http://www.ubuntu.com/download/ubuntu/download). No problem. The issue I have now is that th eusb ports on my x40 were burned before (common problem with the machine), i.e. do not work. So I got a USB notebook card from belkin. However it does not seem to recognize the usb stick from bios, thus I cannot boot from it. I also do not have a cd rom. Then tried to run wubi from the usb stick, briefly appears in task manager, no further action. So I tried it with wubi.exe, but same thing. Downloaded it to desktop, run it, briefly appears in the task manager under processes, no further action. Any one idea? I have enough memory and enough freed hd space. Thanks. Oliver

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• Is there a LibreOffice equivalent to microsofts office themes?

  - by Dr. Mike

  I've used MS office for many years now. Especially powerpoint. One of the strengths is that it defines and separates the concepts of template and theme. A theme can be saved and contains fonts, colours, and a set of images that can be reused every time you create a new presentation. This ensures that everyone in your organization uses exactly the same colours and fonts all the time. Now I know that you can download templates for LibreOffice, but I have not seen anything similar to the theme concept. The file extensions used in MS office are the following for the two concepts mentioned: Example Powerpoint template file name: mytemplate.potx Example Powerpoint theme file name: mytheme.thmx Now back to my question: Do these concepts and their separation exist in LibreOffice or OpenOffice? If so, how do I create them?

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• Problem by installing Java

  - by Shagun

  Yesterday night I was trying to download Java as per instructions given on http://developer.android.com/ .But I messed up somewhere and had to give up the thing. But since morning when ever I try to install or remove some thing I get the following response http://paste.ubuntu.com/1198084/ Please help fast. I am a newbie in android development and have to submit an app within 5 days from now for a project. And I need my linux machine working fine for that.

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• tail stops displaying in case of a log rotation

  - by Rudy Vissers

  I have to tail the log of a server (servicemix) and the log rotation is enabled. As soon as the rotation happens, tail stops displaying. I did some investigations and it is a bug in Debian : Debian Bug Report. The bug has been around for a long time ago. Does anyone knows if this bug in Ubuntu is to be fixed? I'm on Ubuntu 12.04 64 bit. I don't have to mention that this bug is total hell! Every time I have the problem, I have to interrupt the command tail and re-execute the command!

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• Unable to set default gateway

  - by GrandMasterFlush

  I'm running Ubuntu server via Hyper-V and have successfully installed it but seem unable to ping the server or ping any other machines on the network from the server. After doing a bit of reading I've noticed that the default gateway isn't set but when I try and set it I keep getting error messages which I can't understand. From this article I've tried ip route add default via 10.0.10.200 Which reports: RTNETLINK answers: Operation not permitted If I try running it prefixed with sudo but it reports: `RNETLINK answers: No such process I've editted /etc/network/interfaces but when I start the machine and type netstat -nr there is nothing listed. Can anyone tell me where I'm going wrong please? EDIT : /etc/network/interfaces contains: auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp

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• How to change color AND width of non overlay scrollbars in Ubuntu 12.04

  - by Chuqui

  I know many people have complained about the almost invisible and not usable scrollbars in recent versions of Ubuntu, even after removing or disabling the default overlay scrollbars. I wonder how can I easily change their color AND width. I have a 13.3 inches monitor with a 1600*900 resolution and I can barely see them, as you can see in these images: I already changed Firefox, LibreOffice and some other software's scrollbars using GNOME Color Chooser: By the way, I'm using Unity. Thanks!

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• How disable mysql command in sudoers file?

  - by Carlos A. Junior

  How i can disable /usr/bin/mysql command in sudoers file ? ... Actually I've tryed use with this way: %tailonly ALL=!/usr/bin/mysql But when i'm access if user 'tailonly' of group 'tailonly', this command still enabled. In resume, i'm only want that 'tailonly' user access 'tail -f /usr/app/*.log' ... This is possible ? Edit: With this config, the user 'tailonly' still can access mysql terminal with 'mysql' command: $: sudo su $: visudo Cmnd_Alias MYSQL = /usr/bin/mysql Cmnd_Alias TAIL=/usr/bin/tail -f /jacad/jacad3/logs/*.log # User privilege specification root ALL=(ALL:ALL) ALL # Members of the admin group may gain root privileges %admin ALL=(ALL) ALL # Allow members of group sudo to execute any command %sudo ALL=(ALL:ALL) ALL %swa ALL=/etc/init.d/jacad3 stop %swa ALL=/etc/init.d/jacad3 start %swa ALL=/etc/init.d/jacad3 restart %swa ALL=sudoedit /jacad/jacad3/bin/jacad_start.sh %tailonly ALL=ALL,!MYSQL

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• Suitable Ubuntu distribution

  - by Dr AMD

  I need help choosing a suitable distrbution for my PC. I am using an HP d530 CMT with: ?• CPU Type: Intel Pentium 4, 3000 MHz (15 x 200) ?• Motherboard Chipset: Intel Springdale-G i865G ?• System Memory: 1015 MB (PC3200 DDR SDRAM) ?• Video Adapter: Intel(R) 82865G Graphics Controller (96 MB) ?• 3D Accelerator: Intel Extreme Graphics 2 ?• Audio Adapter: Analog Devices AD1981B(L) @ Intel 82801EB ICH5 - AC'97 Audio Controller ?• Network Adapter: Broadcom NetXtreme Gigabit Ethernet I have tried to install Ubuntu 13.10 and 12.04 LTS. Everything is OK on Ubuntu 12.04 except, that the video card was not recognized and the media player, YouTube,etc. did not work properly.

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• Applying languages / locale selectively: is it possible?

  - by Aron Rotteveel

  I am a Dutch user and prefer the my local date & time format, system wide. I have no trouble speaking or understanding English and find it very useful to have the rest of my system configured in English to make my life easier when I need to Google a term, for example. Is it possible to apply the a local date/time/currency/etc. format to the system, while maintaining English menu & dialog captions? EDIT: output from locale and posted screens of current settings: LANG=en_US.utf8 LANGUAGE=en LC_CTYPE="en_US.utf8" LC_NUMERIC="en_US.utf8" LC_TIME="en_US.utf8" LC_COLLATE="en_US.utf8" LC_MONETARY="en_US.utf8" LC_MESSAGES="en_US.utf8" LC_PAPER="en_US.utf8" LC_NAME="en_US.utf8" LC_ADDRESS="en_US.utf8" LC_TELEPHONE="en_US.utf8" LC_MEASUREMENT="en_US.utf8" LC_IDENTIFICATION="en_US.utf8" LC_ALL=

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• Invisible boundary on Synergy client

  - by Jayson Rowe

  I have a Desktop system (named 'desktop') with 2 monitors attached (one 1680x1050 and another 1920x1080 resolution), running a synergy server. I also have a small ITX machine (named 'tiny') to my right that has a single monitor running at 1280x1024. The dual-monitor desktop is the synergy "server" and the single monitor system is the "client". Synergy works fine with one exception; if I move the mouse to the client, I can't move my mouse below the top two-thirds of the screen - it just stops. I can grab a mouse attached to the computer, and it moves all the way down, but as soon as I touch the mouse attached to the server, it jumps back to the top of the screen. Is there an issue with my config? section: screens desktop: tiny: end section: links desktop: right = tiny tiny: left = desktop end Thanks in advance for any suggestions. +----------------------------+-----------------------------+ | | | | | | | | +-----------------+ | | | | | desktop 1680x1050 | desktop 1920x1080 | | | | | | | | | tiny 1280x1024 | | | |+---------------+| | | |XXXXXXXXXXXXXXXXX| +----------------------------+-----------------------------+-----------------+

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