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There are several reports that say that there are serious performance issues using 12.04 and nVidia 7100.

Are there any work-a-round in sight?

Jorge Castro
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Anders Wallenquist
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  • try open drivers, binary drivers, and unity 2d. in that order. i have an older nvidia dedicated card on my laptop that took some tweaking, but it works fine now. – RobotHumans Apr 23 '12 at 13:21
  • Please provide a link to these reports, also test your computer with a live usb install or seperate beta partition and then report a bug in the normal way. – Martin Owens -doctormo- Apr 23 '12 at 14:07
  • No problem with NVidia Quadro NVS 110M, which has an NVidia GeForce Go 7300 chip, I believe. – RobinJ Apr 23 '12 at 14:38
  • Right now I compine binary driver and unity 2, but its the media machine (connected to the familys TV) and neighter play channels thru webbrowser, Me-TV or xbmc work well with that configuration. – Anders Wallenquist Apr 23 '12 at 16:08
  • https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/962191 https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/959677 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/961349 https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/859979

    There are several bug reports, I don't think another one will contribute something new. But reading between the lines, it may be some work-a-rounds.

     – Anders Wallenquist Apr 23 '12 at 16:20
  • It seems to be the patch for CVE-2012-0946 that is the problem. "Please do not use 295.40 or the security patch with GeForce 6, 7 or 8800GTX/GTS cards" http://www.nvnews.net/vbulletin/showthread.php?t=178460

    I have tried to install an older driver thru Synaptic, with no luck. I found 295.33 in launchpad http://launchpadlibrarian.net/98943873/nvidia-current_295.33-0ubuntu1_amd64.deb . This is my next step.

     – Anders Wallenquist Apr 24 '12 at 21:06
  • I have now tested older drivers, with no luck, 295.20 and 295.33. It seems to be problem may be booth in the driver and some part of the framework in Ubuntu 12.04 – Anders Wallenquist Apr 26 '12 at 06:27
  • Can you put this information in your question instead of burying it in the comments? Thanks! – Jorge Castro May 15 '12 at 01:55

4 Answers4

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Here's another bug report to add to the list:

https://bugs.launchpad.net/unity/+bug/987469

Avery Jenkins
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This is how I solved the problem (found in a discussion in ubuntuforum.org). I installed the old nvidia-173 driver AND downgraded xserver-xorg. After this XBMC, Unity and other GPU-hungry things started to work again.

1) /etc/apt/preferences.d/10xorg

Package: xorg xserver-xorg*
Pin: release a=oneiric
Pin-Priority: 1050
# So i can find dependencies for the older driver

2) /etc/X11/xorg.conf

# New section
Section "Extensions"
Option "Composite" "Disable"
EndSection

3) install nvidia-173 using synaptic or apt-get

Anders Wallenquist
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    Well... step 2 alone "fixes" the issue, but basically makes Unity 3D act like 2D, which kind of defeats the purpose of the fix. – 01es May 02 '12 at 20:26
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Downgrading to 295.33 helped with my GeForce 7100. Everything works well now.

Type Ctl-Alt-F1, then: 

    sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
    sudo apt-get update
    sudo apt-get install nvidia-current=295.33-0ubuntu1~precise~xup1

I found this solution in this article: Unity 3d no longer works after installing 12.04

Community
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Brandon
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my problem was with geforce gt630m with optimus technologies, and intel HD3000

Problem description: battery duration on linux 1 hour // windows 6 hours

After installing bumblebee, battery duration on linux 4.3 hours

instruction here: http://www.leanuxeros.com/linux/como-instalar-bumblebee-3-0-en-ubuntu-y-debian/

maybe you should use google.translator.com

Daniel Panario
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