[Bug 69723] GPU lockups with kernel 3.11.0 / 3.12-rc1 when dpm=1 on r600g (Cayman)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Nov 26 20:16:28 PST 2013


https://bugs.freedesktop.org/show_bug.cgi?id=69723

--- Comment #42 from Alexandre Demers <alexandre.f.demers at gmail.com> ---
(In reply to comment #41)
> (In reply to comment #40)
> > Do you think I could try to force to vddc=1060 in ni_apply_state_adjust()
> > instead of 1000 when mclk=130000 to see if the system becomes stable?
> 
> The driver will currently limit the mclk to 125000 since that's the max
> level in the vddc/mclk dep table.  You could try it.  The driver will use
> 1060 when the sclk is 80000.

Well, it isn't that... I'll look at mclk again if I limit it a bit lower
(120000 maybe). I ran a video on Youtube (no UVD) and it hangeg again. The only
way I don't have this problem is by forcing the power level (sorry, I was
calling it performance level earlier). Doing so is OK almost everytime while
using the auto mode freezes the card.

I also had a look under Windows. I played the same video and I used GPU-Z to
get a log. I'm attaching it right away to compare what I get under Linux VS
Windows.

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