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• How do I install Ubuntu on an HP Touchsmart 600?

  - by user70004

  I have a hp touchsmart 600 pc series. I tried to install the lastest version of ubuntu (12.04 LTS, 64bits) but it would not install. I popped in the cd and the menu asked for a reboot. Which I did. As ubuntu was about to install(purple background with 2 symbols underneth) the screen was dark and a prompt kept blinking for like over 10 minutes. So I turned off my pc and loaded my window os. I ran ubuntu again and used the help install feature. Needless to say the same thing happen again! does ubuntu work on hp touchsmart computers?

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• Ubuntu 12.10 and Gnome-Shell : can't see nor launch apps except with Alt + F2

  - by Ratoune2008

  I've installed Ubuntu 12.10 and Gnome-Shell 3.6. Everything worked fine till the moment I've began to customize the main menu (apps wich appears in Dash and so on). I don't know wether I've done something wrong or if there is a bug : suddenly, the Dash became empty. My favourite docks too, except the "Show apps" button. When I activate it, there is only an empty dash, no apps showed. The only way I can access an app is using the "Alt+F2" shortcut. I've tried to restart gnome-shell (Alt-F2 / r) but nothing has changed... A logout and a reboot have not changed ... Do you know how to repair the gnome-shell ? Thanks for your help...

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• Blank desktop after login

  - by Alex

  Today my 14.04 updated itself not requiring a reboot. After a while I rebooted because of other reasons and then I was pleasantly surprised by a blank screen. I have tried everything I could think about including Reinstalled compiz, unity, ubuntu-desktop, xorg Reinstalled and then removed the nvidia driver So far nothing has worked. Except for one little thing: my cairo-dock is showing. And that's all. I tried with Unity doesn't load, no Launcher, no Dash appears, but none of the answers there helped me. I also tried removing my ~/.Xauthority file and it still doesn't work. Does anybody know what else I could try? UPDATE: sudo dpkg-reconfigure xserver-xorg sudo service lightdm stop sudo service lightdm start When I run that code and then login again the icons on the desktop are displayed but the menu and the launcher are still not there. Also, when I try to run an application from CTRL + ALT + F1 such as dconf reset -f /org/compiz/ it says Cannot autolaunch D-Bus without X11 $DISPLAY I can only run applications with export DISPLAY=:0

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• Touchpad stopped working out of the blue

  - by KI4JGT

  So, I'm watching "The Walking Dead" and all of the sudden I lose control of my mouse through the touchpad. At first it was just for my user. I could reboot my system and switch to another user and use it just fine. I cannot explain the steps I took (I'm using the keyboard to manuver firefox right now) but it was something along the lines of: sudo modprobe -r psmouse && sudo modprobe psmouse proto=imps After this command, I regained control of my mouse but the computer didn't recognize it as a touchpad. I thought if I rebooted again, it may do the trick. So after I rebooted, the mouse went completely kaput. I cannot get the mouse to work at all now even though I've tried the command several times. I've tried different users and it's still the same.

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• making "xwacom set" changes permanent

  - by Philippe

  On my Thinkpad X220 Tablet the touch-finger works flawlessly but the pen is terribly miscalibrated. The calibration tool in System settings - Wacom tablet does not work. Instead, whenever I wan't to use the pen I first need to sudo xsetwacom set 'Wacom ISDv4 E6 Pen stylus' Area 0 0 27760 15690 These changes do not remain permanent. That is, after every reboot they are gone. How can I make the change permanent - I'm not looking for a startup scrip, I'd like to set the right area once for all. Any idea?

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• Network disabled on some wake-ups on saucy laptop

  - by Arild

  Since I upgraded to Saucy Salamander 13.10, with every third suspend or so, the network is disabled and I'm unable to re-enable it. I've had to reboot to make it run again. The network menu will have the option Enable network but clicking it will only produce a tick in the menu item, nothing else changes. How can I make it enable automatically after suspend? In the meantime, is there a workaround to at least manually re-enable it? The PC is a Lenovo IdeaPad S205 using drivers r8169 and rt2800pci.

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• Using Ubuntu to recover data from a crashed Windows install

  - by user289391

  I was using Windows on my laptop when suddenly the blue screen of death appeared and then laptop restarted and wrote for me this : Intel UNDI, PXE-2.1 (built 083) Copyright (C) 1997-200 Intel Corporation This Product is covered by one or more of the following patents: US5,307459, US5,434,872, US5732,094, US6579,884, US6115,776 and US6,327,625 Realtek PCIe FE Family Controller Series v120 (01/26/10) PXE-M0F: ExitingPXEROM. reboot failed I have Ubuntu on an external disk so I have now booted to that. Two questions: Any theories on what happened? How can I use Ubuntu to recovers my data from Windows install?

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• No desktop after installation of nvidia drivers

  - by hovmand

  I have a problem very similar to this guy: Desktop does not show when I installed nvidia drivers!. I have the same problem with the desktop not being present when I install choose the nvidia drivers from the software sources dialog. I've trie the answer mark as the solution, but this doesn't help me. Still get the same result / bug. I've also tried just to reconfigure it, like this guy says: http://ubuntuforums.org/showpost.php?p=12303179&postcount=4, but that didn't help me either. Then someone suggested that I should try Bumblebee. I followed the installation (https://wiki.ubuntu.com/Bumblebee#Installation) and after the reboot the resolution was still crappy, but this time the desktop did show up, but with bad graphics and I couldn't use optirun and it turned out that bumblebee couldn't start. I hope someone might know whats wrong or what I'm doing wrong. I have a Lenovo W520 with a nvidia Quadro FX 880M and I'm running ubuntu 12.10

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• Is there any way to downgrade or revert an update to the kernel?

  - by David

  Today I installed the linux 3.9 Kernel update (because I heard it would fix sound through HDMI which I no longer have since installing 13.04). After restarted my computer and logging in my screen has only a desktop, and no dock or tool bar. I tried to reset unity and compiz using guides like this one but nothing happens, even after reboot. Is there any way to downgrade or reset the update? EDIT: Running uname -a in terminal brings up 3.8.0 as my current kernel for some reason.

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• /dev/sda2 contains a filesystem with error after partitioning

  - by Private

  I just wanted to create a separate home partition on my Ubuntu 12.10 system. I booted the liveDVD, resized the sda2 partition (28gb of data resized to 30gb based on MiB [originally on a 100gb partition]) and made a new ext4 partition for the home folder. The drive is an SSD drive. I had changed the settings (noatime etc.) for SSD succesfully a week ago. On reboot I get the following error: /dev/sda2 contains a filesystem with errors Inode 74669 has an invalid extent node (blk 6881289) fsd / [953] terminated with status 4 What would you suggest me to do? If I can avoid a clean install that would save me a lot of time (I had just done all the config). I was following this HOWTO, but I did not get to changing any of the files or configs other than those with gparted. I have a (two-week old) SSD Samsung drive which is functioning just fine (other specs see bottom of this question). Other specs: 64bit 12.10, i7, 8gb ram, nvidia.

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• 14.04 missing "/etc/init.d/ufw"? my firewall never auto starts

  - by Aquarius Power

  I need to know how to fix the missing "/etc/init.d/ufw" file, is it some package or some command? I used the gufw to enable it, but on reboot my firewall was still off... I created a symlink /etc/init.d/ufw -> /lib/init/upstart-job but I could not make it work like start ufw. I found this file /lib/ufw/ufw-init, it looks like a init.d file! can I copy or symlink it there? Additional (optional) questions: How to find what package has that file? apt-cache search didnt work.. Can we safely create such a script? Any idea why is it missing? Obs.: my /etc/ufw/ufw.conf has ENABLED=yes (but seems useless..)

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• Color distortion with Intel HD4000 over HDMI output - VGA is fine

  - by Simon Möller

  I set up a new system with i5 3570k gigabyte z77 d3h using integrated graphics (HD4000) and I've installed the 64bit Desktop version of 12.04. Connected to my Acer Screen via HDMI, the colors are horribly distorted. I think the biggest issue is that black appears as greenish. Over VGA everything is fine. Interestingly, I once observed that connecting both, the VGA and the HDMI cable at the same time, solved the issue. Ubuntu thought 2 screens were connected, I mirrored the image, and over HDMI the colors looked fine. However, after a reboot I am now unable to reproduce this behavior. I read frequently, that Intel hardware should be supported out of the box by Ubuntu but it doesn't seem to be the case here. Should I upgrade my Kernel? If so, which version would you recommend? Thank you for your answers!

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• "input not supported" at login screen after ati driver is installed

  - by squalo78

  I'm running ubuntu 11.10 and I installed the Ati driver from the oficial page. When i reboot, the grub and the splash screen are working (at lower resolution) but instead of the login screen, it shows "input not supported" message. If I use "Ctrl+Alt+ keypad +" I can see my login screen at 640x480 resolution and login. I don't know how to make login screen displays 1440x900@60, that is the resolution set on my session. I'm running Ubuntu 11.10 with ati hd4200 video card, a monitor acer aL1916w that supports the resolution 1440x900.

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• how to modify another user's .profile from the recovery console?

  - by Pinpin

  Pretty much everything is in the title, really! ;) I installed a few components to compile go programs, and the last step was to add the go directory to the path. Being a total ubuntu noob, I added the line PATH="Path/To/Folder", after the one that was already there. After the first reboot I can no longer log into ubuntu (the screen black-out for a while and then I'm back to the login screen, and the same chime greets me.) I've been able to boot in recovery mode, open the root's profile with vi, but I cant find my other user's profile, nor pretty much anything.. Any hint would be greatly appreciated! Pascal

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• Ubuntu 14.04 + nvidia-331-updates makes a blank desktop screen

  - by Achint

  I upgraded my installation from 13.10 to 14.04. The problem is that whenever I install the Nvidia drivers from the GUI, upon reboot or trying to login again it only shows the wallpaper of my desktop and nothing else. The mouse does move around, but nothing works. I am unable to open a terminal or do anything else. If I go into the tty console and purge the drivers, then things seem to work again. I have an Optimus setup, with an onboard Intel and discrete Nvidia GTX770M card. It's a 64-bit architecture. I really need to work with CUDA, and was hopeful after hearing that nvidia-prime was released, but this is a real downer. Any help on this?

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• Failed GRUB after 10.04 to 12.04 upgrade in system with LVM

  - by Vagelis L

  I am using Ubuntu Server as a SMB server at work and two days ago I have tried to upgrade it to 12.04. After reboot, I got this grub_xput missing grub rescue> and all attempts to start from this prompt failed (missing components, although grub directory is normally set as prefix). My system sits and boots on an LVM (soft raid-5). I have read almost all posts in many forums, tried grub rescue, boot-repair, ubuntu-secure-remix with boot-repair but without positive result. This is the log of my last (and best so far) attempt to fix this system. Any suggestions? Please help.

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• How do I read my PDFs and watch videos properly again?

  - by asp

  Whenever I watch videos, either online of local via Totem and/or open PDF files using evince. The system gets really, really bogged down. All apps get really slow, menus take forever to display, switching windows gives me time to make a coffee, etc. I have a couple of bug reports open on this, but what do I need to do to really troubleshoot the issue? I've purged Adobe Flash from the system, but YouTube HTML5 videos still have the issue. A bunch of PDFs saved locally trigger the problem. And to (temporarily) remove the slowness, I need to shutdown the computer, breath for a few minutes, then restart. A simple reboot does not do the trick. How can I identify the cause? This only started on 13.04. I've had Ubuntu on this machine for a year without a problem until "upgrading" to 13.04. I am not a programmer, but I suspect an issue with the Intel video driver.

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• Oh Unity Launcher scrambled with color dots after log on or restart

  - by Cominatyalive

  The left hand side Unity launch bar is color scrambled after reboot, or log on. When touching it with the mouse arrow, it comes back to normal. I installed gnome shell color before this started happening. I will uninstall gnome shell color & see if this problem goes away. Any one ever see this happen. I run a Nvidia 550ti ge-force graphic card. I have the latest 295.33 driver from Nvidia installed and it does show activated in my restricted driver window. Oh yeah, before you inform me, I can tell you that yes, I do see the instructions to report bugs to the correct source. But I really don't know if this is a bug or not. Could be something else.

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• /etc/crypttab not working

  - by Jeremy Stein

  I used the Disk Utility to create an encrypted volume on an external drive. When I click the Unlock Volume button in that program, it mounts the drive for me. Now, I want to automate this process so that it will happen at boot-up. When I run sudo cryptsetup luksUUID /dev/sdb1, I get this: ca709269-1e3e-4e9e-9e08-7248f0e6c5a6 So, I create /etc/crypttab like this: backup_drive UUID=ca709269-1e3e-4e9e-9e08-7248f0e6c5a6 none And I added this line to /etc/fstab: /dev/mapper/backup_drive /mnt/backup ext3 default 0 2 When I reboot, Ubuntu tells me that the device is not available to map, so I tell it to skip it. It appears that the /etc/crypttab is not getting run correctly. How can I debug this?

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• Dropbox install stuck at 99%, how do I fix it? (and any dpkg errors)

  - by John

  I tried to install Dropbox using How to install Dropbox?, or with apt-get install nautilus-dropbox. Dropbox loads until 99% and then hangs, causing the system to go to 100% cpu usage. If I reboot or close the terminal, I sometimes get dpkg errors which prevent me from using apt-get or Software Center to perform any package management functions. I would like to resolve all these and just get Dropbox working. How do I do that? Note: This question is possibly answered in two parts: The accepted answer tells you how to install Dropbox. But if you have dpkg errors, see this answer before you use answer 1 to install Dropbox.

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• Is this fix for Avast Antivirus crashing safe to use?

  - by TmRn

  Well I have installed avast anti virus on Ubuntu 12.04. But after updating, it crashes! So I have made some tweaks like below: Press Ctrl+Alt+T to open the Terminal. When it opens, run the command below. sudo gedit /etc/init.d/rcS Type your password and hit Enter. When the text file opens, add the line: sysctl -w kernel.shmmax=128000000 Make sure the line you added is before: exec /etc/init.d/rc S This is what it should look like: #! /bin/sh # rcS # # Call all S??* scripts in /etc/rcS.d/ in numerical/alphabetical order # sysctl -w kernel.shmmax=128000000 exec /etc/init.d/rc S Save the file. Reboot. My question is: Did I do anything wrong? I mean as I have made some tweaks, will it lower the security of Avast down like viruses do? Please if you are a programmer check this if it contains bug or harmful intentions... Thanks.

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• Strange right click problem?

  - by KashmirHackers

  Last night I installed some applications and updated my Ubuntu 12.04 LTS,since then I encountered a strange right click problem, that is my right click is not working but when I open home folder from launcher right click works again. Actually problems starts last night when my desktop wallpaper changes suddenly to Ubuntu default, when I tried to change wallpaper I find that my right click is not working. I tried to reboot system but that also not solved my problem,i clicked here and there but when I opened the home folder my wallpaper changed again to previous one and when I checked the right click it is also working. Now the problem is that this problem comes back again whenever I turn on my system,and also whenever this problem occurs the Ubuntu desktop menu bar also disappears from unity top panel. Don't know what is really going on, please can anybody help me.

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• Problem reinstall GRUB2

  - by Caustic

  I tried to upgrade from 12.04 - 12.10. The install seemed to go well but upon reboot, I get the grub recovery console. I tried to reinstall using the boot-repair Boot Repair which usually works a treat. However this time it says it is scanning my HDD and never recovers. When I try to reinstall grub using the old grub-install <dir> <dev> --recheck --debug &> gruboutput.txt I get this Pastebin link I think it should be installing to dev/mapper/isw_gbaaebhfe_Volume0 even when I made -- dev/mapper/isw_gbaaebhfe_Volume3 Any help would be appreciated

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• Touchpad doesn't work after logging in

  - by Vamsi Emani

  The touchpad of my laptop fails to work soon after I login to Ubuntu. I;ve gone through several threads in forums regarding the same and have tried out : gconftool -set boolean ... command I;ve even tried to reboot the system in recovery mode, also I;ve unchecked the System - Preferences - enable touchpad while key type and restarted. None of the above methods which did work for few seem to work for me. Please help me. How can I fix the touchpad issue in Ubuntu 11.10 without a reinstall? I am using 64 bit Oneiric, on Dell Inspiron

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• How to automatically restart Tomcat7 on system reboots?

  - by coding crow

  I have installed Tomcat 7 on Ubuntu 12.04 LTS which run on an Amzon EC2 instance. Now I wish tomcat should restart automatically on system reboot. I read this blog which suggest adding below script to /etc/init.d/tomcat7 # Tomcat auto-start # # description: Auto-starts tomcat # processname: tomcat # pidfile: /var/run/tomcat.pid case $1 in start) sh /usr/share/tomcat7/bin/startup.sh ;; stop) sh /usr/share/tomcat7/bin/shutdown.sh ;; restart) sh /usr/share/tomcat7/bin/shutdown.sh sh /usr/share/tomcat7/bin/startup.sh ;; esac exit 0 and issue the following commands sudo chmod 755 /etc/init.d/tomcat7 sudo ln -s /etc/init.d/tomcat7 /etc/rc1.d/K99tomcat sudo ln -s /etc/init.d/tomcat7 /etc/rc2.d/S99tomcat sudo /etc/init.d/tomcat7 restart My Questions The tomcat7 already has script in it, where do we have to paste the suggested script? Is the suggested procedure correct?

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