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Bug#652353: installation-reports: Bottom 1/3 of screen turns black, then system locks-up

On Fri, Dec 16, 2011 at 09:54:06AM -0500, Chris wrote:
> Package: installation-reports
> Severity: critical
> Justification: breaks the whole system
> The system will run a for upto an hour under causual usage (browsing the web,
> checking email, writing openoffice docs, etc.).  Then suddenly, the bottom 1/3
> of the screen turns black, and the machine locks up. Must do a hard boot to get
> it going again.  The problem does seem worse when doing things under increased
> load, like playing a youtube video, or running the cpu blowfish benchmark.
> This system ran without any issues under Lenny.  I upgraded to squeeze
> yesterday, and now this.
> I have this in my /var/log/syslog, repeated for probably about 100 lines or
> so...
> 0x004a Mthd 0x0db4 Data 0x00000020:0x00000000
> System also runs fine under knoppix, so it does not seem to be hardware
> related.

Do you have an nvidia card in that machine?

shows the same error from the nouveau driver on 2.6.32 kernel on an older
nvidia card.  So same kernel version squeeze uses.

Lenny would not have used nouveau.  knoppix likely doesn't either, or if
it does it uses a different kernel version.

One workaround suggested is to add the kernel option 'nouveau.noaccel=1'.

Also make sure X is using the nouveau driver or you can get conflicts
between the kernel frame buffer driver and X.

Len Sorensen

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