[Bug 28402] Kernel 2.6.34 freezes randomly

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=28402

--- Comment #50 from Da Fox <da_fox at mad.scientist.com> 2010-09-08 05:02:14 PDT ---
(In reply to comment #49)
> I've also noticed (rare) random freezes with 2.6.34.x kernels. Basically, I've
> tried to wake the PCs from "DPMS OFF", only to find them completely
> unresponsive and needing a reboot instead. However, only one of those PCs has
> an RV350 card. The other two have rv280 and rv100 cards instead, so Dave
> Airlie's patch to r300.c cannot possibly help them.

Chris: these freezes do occur during normal operation, i.e. while working with
the computer, not only during DMPS. It happens during all kinds of activities,
e.g. it may happen while browsing, typing a letter, chatting, alt-tabbing, or
even not doing anything. However almost always it seems to be triggered by some
activity. For me for example, for me starting firefox after a fresh boot has a
99% chance of causing a freeze during the 'restore tabs from last time' phase. 
Although it is quite possible that the freeze will also occur during DPMS
sleep, I have not experienced it yet (mostly because the freeze will occur
while working, so the computer didn't get a chance to go into DPMS sleep).

So the first thing to do would be to verify that you indeed are experiencing
the same issue (and not an unrelated DPMS problem) is to keep using your
computer and wait for a freeze to occur during usage. Your best bet would be to
try the rv350 card, I have mostly only seen people with r300 and/or rv350
describe this problem, and both me and lukas have an rv350 card (we both have a
Mobility Radeon 9600 M10).
Once you have confirmed that the freeze occurs during normal working operations
also, you should proceed to verify our git-bisect results and test the patches
provided by Dave Airlie and Alex Deucher. Best of luck!

p.s.
Is the rv350 card a PC or a laptop? I noticed both lukas and I have a laptop
with an rv350 card, so perhaps it has something to do with mobility editions?

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