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Thread: Precise known bugs with workarounds

  1. #41
    Join Date
    Nov 2011
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    3

    Smile Re: Precise known bugs with workarounds :: Solve audio problem

    To solve the audio problem, install pavucontrol and go to config menu choosing audio duplex

  2. #42
    Join Date
    May 2012
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    1

    Re: Precise known bugs with workarounds

    This should help new installs of Ubuntu 12.04 with keyboard and trackpad problems. When I installed 12.04 on my Toshiba Satellite, the keyboard and trackpad would work through the USB install bootloader/blahblahblah process, but then would completely go non-functional at the login screen. Oh noes!

    Of note, I'm running Windows 7 on one side, and Ubuntu 12.04 on the other side.

    1. Restart your computer and hold "Shift" at the boot screen. (That's the one telling you to choose Windows or Ubuntu.) This will take you into GRUB2. If you're not familiar with what you're doing here, don't do anything stupid. Seriously. You will hurt yourself.

    2. Type this...

    acpi=noirq
    The "q" at the end assumes you have a QWERTY keyboard. Some other weirdos use this other type. I think it starts with an "a", or something. If that's the kind of keyboard you have, you probably know what it's called already. Replace the "q" with an "a" in that case.

    3. Press "ESC". That's how you leave GRUB. You will now boot back up. If your keyboard and track pad work - ding, you have succeeded.

    4. You need to KEEP this little code in place. So then you open up your handy dandy Terminal.

    5. Type the following stuff. (Stuff is the techie word for it.)

    sudo gedit /etc/default/grub
    6. That's going to take you to an open screen where you'll need to alter some text look for a line that says, "GRUB_CMDLINE_LINUX_DEFAULT" and in the spot where it says "quiet splash". Change that line to "acpi=noirq quiet splash"... BUT WAIT, THERE'S MORE.

    7. Don't sweat it. Seriously, you're going to be fine. Basically, what we're doing is making that little edit we made stick. If not, you'll have to do it at every reboot. (That's what she never said.)

    8. SAVE and CLOSE that window.

    9. UPDATEUPDATEUPATE. Go into your Terminal again and type this...

    sudo update-grub
    10. You're all done! Restart baby!

    Any questions or help I can offer, let me know.

  3. #43
    Join Date
    Apr 2012
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    Ubuntu 12.04 Precise Pangolin

    Re: Precise known bugs with workarounds

    One very severe bug which affects a lot of things and caused me a lot of problems with a new installation of 12.04 was the software "tracker". After starting it filled up my root with stuff and crashed the system. There is apparently no way to redirect the index. It also prevented me from using some other software, notably "remastersys" because it was impossible to exclude the tracker stuff from a backup.

    Alternative, if you need an indexer use "recoll" ( it is better anyway), and don't put indices on /root

    After removing tracker ( although a clean install is better), the system is once again fast and stable.
    Last edited by traditionalist; May 12th, 2012 at 10:25 AM.
    There is always a way, but it might not be the best way, or your way!

  4. #44
    Join Date
    May 2008
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    United Kingdom
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    4,271
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    Ubuntu 14.04 Trusty Tahr

    Re: Precise known bugs with workarounds

    Quote Originally Posted by shanemorris View Post
    sudo gedit /etc/default/grub
    Please use gksudo and not sudo for GUI programs.
    Code:
    gksudo gedit /etc/default/grub
    You can also enter that from Alt-F2 instead of the terminal, if you prefer.
    Full Circle Magazine :: Cheap Linux stickers :: Problems with WINE?
    In my day, we had outdoors in which to run, play, and socialise. Now we have computers to do those.

  5. #45
    Join Date
    Mar 2009
    Location
    Brisbane, Australia
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    70
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Precise known bugs with workarounds

    The poor laptop battery performance on Ubuntu isn't exactly a bug, but I consider it enough of a shortcoming to post a solution on this thread.

    Installing Jupiter, the light-weight power and hardware control applet, will give you improved battery life.

    Code:
    sudo add-apt-repository ppa:webupd8team/jupiter
    sudo apt-get update
    sudo apt-get install jupiter
    Open Jupiter and it will appear in the top panel.

  6. #46
    Join Date
    Apr 2012
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    Ubuntu 12.04 Precise Pangolin

    Re: Precise known bugs with workarounds

    I finally found a workaround for all my graphic card problems with several new ATI Radeon cards.

    Install Gnome shell, remove Unity and use the generic drivers in the release. Don't even bother trying the proprietary drivers or various other stuff, none of it works, I tried for two weeks without success, they just crash all the time if you try to use unity, and crash regularly with other desktop environments, especially with Ubuntu 2D as well. ( I didn't like Unity anyway, and was glad to be rid of it!).

    "GNOME classic " runs best, but "Gnome" and "GNOME Classic (no effects)" also run well and very stable. Ubuntu 2D will still crash the system, it just loses the desktop all the time. I have removed everything I could find regarding it, but it still appears in the greeter

    Curiously, unity with an otherwise identical system runs on an old celeron machine with integrated graphics without any problems. It just does not like my ATI cards.

    Everything on my system which did not work before is now stable, including Compiz ( which is great now that it works!)

    Maybe this will help someone else who is struggling.

    I used this to remove it;

    Code:
    mike@mikepc:~$ sudo apt-get remove unity unity-2d-places unity-2d unity-2d-panel unity-2d-spread unity-asset-pool unity-services unity-lens-files unity-lens-music unity-lens-applications gir1.2-unity-4.0 unity-common indicator-sound indicator-power indicator-appmenu libindicator6 indicator-application evolution-indicator indicator-datetime indicator-messages libnux-1.0-0 nuxtools
    [sudo] password for mike: 
    Reading package lists... Done
    Building dependency tree       
    Reading state information... Done
    Virtual packages like 'gir1.2-unity-4.0' can't be removed
    E: Unable to locate package libindicator6
    E: Unable to locate package libnux-1.0-0
    E: Couldn't find any package by regex 'libnux-1.0-0'
    E: Unable to locate package nuxtools
    mike@mikepc:~$ ^C
    mike@mikepc:~$
    Make sure you install the Gnome stuff first before you delete Unity, ( For newbies like me who didn't, ! ) Or you will have to do it all from the command line. Or keep re-installing the system until you can get it to run.
    Last edited by traditionalist; May 17th, 2012 at 03:29 AM.
    There is always a way, but it might not be the best way, or your way!

  7. #47
    Join Date
    Nov 2010
    Location
    Plano, TX
    Beans
    28
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Precise known bugs with workarounds

    If you experience the 'gray flash' when you sign in, you are in 2D Unity. If you have an Nvidia graphics card, install Bumblebee to enable 3D Unity.

  8. #48
    Join Date
    Jul 2009
    Location
    Hamilton, New Zealand
    Beans
    540
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Precise known bugs with workarounds

    I like to plug in a USB mouse on my laptop. However when operating off the battery aggressive USB powersaving turns the mouse off unless it is constantly moved.

    The solution is to add the mouse device ID to the blacklist in

    Code:
    /etc/laptop-mode/conf.d/usb-autosuspend.conf
    mouse ID found by running lsusb
    Life's a pitch. And then you sing!

  9. #49
    Join Date
    Feb 2006
    Location
    Ireland
    Beans
    856
    Distro
    Ubuntu 13.04 Raring Ringtail

    Re: Precise known bugs with workarounds

    Libre Office Writer does not have a working spell check on a fresh 12.04 install here (three seperate installations have the same problem).

    Spell check doesn't detect any errors but says it has completed the spell check, which is not the case.

    Bug Report & workaround: https://bugs.launchpad.net/ubuntu/+s...ce/+bug/997934

    Thanks to Bra|10n for providing the solution on this thread.

  10. #50
    Join Date
    Jun 2011
    Location
    Flint Hills USA
    Beans
    13
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: Precise known bugs with workarounds

    This got me a perfectly working display!

    I have the AMD Quad-Core A6-3620 APU with Radeon HD 6530D graphics. And of course I got the black screen when trying to install Ubuntu 12.04.

    Solution:

    1. Boot the Ubuntu Live CD.
    2. Hit any key during boot splash screen
    3. Press F6 and select nomodeset, then Esc, and then select Install Ubuntu, then Enter.
    4. Install Ubuntu
    5. Reboot into recovery mode, and select "resume normal boot" from the menu, hit enter.
    6. Run the following command:

    sudo apt-get update && sudo apt-get install fglrx && sudo apt-get install fglrx-updates

    7. Follow the prompts to finish the fglrx driver installation.
    8. Then run: sudo reboot
    9. Boot in normal mode....ENJOY!!!

    And by the way I do have "AMD Catalyst Control Center" with this method.


    Last edited by HanDez; June 17th, 2012 at 06:11 PM. Reason: More info

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