[Bug 576352] Re: Ubuntu 10.04 hangs/locks up often

[Jeff Burns]

While I was running 10.04, this ceased being a *consistent* issue after
the 256.xx.xx drivers were added to the SWAT repository.   It appeared
to me like the GPU clock throttling started working more consistently.
(http://ppa.launchpad.net/ubuntu-x-swat/x-updates/ubuntu).

After upgrading to 10.10 Beta 1, (and keeping the swat repo active), I
continued to enjoy stability *overall*...  I finally found the
workaround for complete stability, which was to just throttle the clock
on the GPU to the minimum using information I found here:
http://linux.aldeby.org/nvidia-powermizer-powersaving.html.  My graphics
performance for work related apps doesn't appear to have been impacted
really.  (and frankly do I really need a 1.2Ghz clock on my Laptop's
GPU???)

I updated /etc/X11/xorg.conf with the following:
Section "Device"
 Identifier    "Default Device"
 Option  "Coolbits" "1"
"RegistryDwords" "PowerMizerEnable=0x1; PerfLevelSrc=0x2223; PowerMizerLevel=0x3; PowerMizerDefault=0x3; PowerMizerDefaultAC=0x3" 
 Driver  "nvidia"
EndSection

My teammate running Windows 7 on his W510 had the same but much worse
problem initially.  Using my driver experience on Ubuntu, I had him
upgrade to the 256 beta drivers, which stabilized him for a month.
However, his onboard Nvidia card finally burned out and his systemboard
was replaced last Friday.  From my experience and watching his, it seems
to indicate that this could be a combination hardware/driver defect
rather than a Linux/Ubuntu defect.

-- 
Ubuntu 10.04 hangs/locks up often
https://bugs.launchpad.net/bugs/576352
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