On my machine this only visible thing this radeon.dpm=0 does is to
silent the error message at resume from sleep. I see no graphic perf
increase (at least with glxgears) and still scrolling issue for the app
that had it (assuming it is actually related to graphics).
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I tried with option radeon.dpm=0 and yes the message disappears at
resume from sleep.
But on my machine I never noticed graphics slowdown (at least with
vlank_mode=0 glxgears). I'm not a consumer of fancy graphics or games.
However what I noticed without that option was buggy scrolling in
Firefox
I forgot to mention the OS I'm using:
ArchLinux x86-64
Linux 4.0 from testing repo (also happens with the kernel from core repo)
mesa 10.5.4 from stock core repo
xf86-video-ati 1:7.5 from stock core repo
No patch, no personal kernel boot options, basically zero config.
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Hi,
I also experience this problem with my laptop at resume from sleep.
About log messages, there does not seem to be a message when entering
sleep. When resuming from sleep, I can briefly see this message printed
on the screen:
kernel: [drm:rv730_stop_dpm [radeon]] *ERROR* Could not force DPM t
I Finally achieved the commit bisecting.
kernel 3.17.0-031700rc3 does not work
kernel 3.17.0-031700rc4 dooes work
between the two, the commit that makes it work is :
aeaac098bd58349d7415acd998089309fd798190
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Thanks for caring about my bug report, Christopher.
I tested upstream kernel 4.0.0-04rc1: brightness keys do work after
resuming from hibernate with this kernel.
** Tags added: kernel-fixed-upstream kernel-fixed-
upstream-4.0.0-04rc1
** Changed in: linux (Ubuntu)
Status: Incomplet
en updated
since 3.16.0-09. I hadn't
noticed this as I had been getting updates for other packages. Anyway, I
did a fresh install and
that has solved my problem.
Hope this helps.
Regards,
Pankaj
On 06/12/14 01:57, Tong Sun wrote:
> Hi prost,
>
> Despite what Christopher said, I my
de on this laptop and that
resumes without any problems.
I have no such problems with resume on another laptop (Dell latitude
E6520) with Ubuntu 14.10.
Let me know if it is ok to use apport-collect to send my data.
Thanks,
Prost.
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