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On 2014-03-13T17:21:53+00:00 Alexander wrote:

Created attachment 95731
dmesg

Right before the system go to suspend, the following line appears in
dmesg:

[drm:rv730_stop_dpm] *ERROR* Could not force DPM to low

After wakeup i see this in dmesg:

[drm:rv770_dpm_set_power_state] *ERROR* rv770_set_sw_state failed

Also i notice a degradation in performance in some games (e.g. in
Teeworlds before the suspend i have 60fps, after suspend - 30-40 fps).

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1319589/comments/0

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On 2014-03-13T17:26:18+00:00 Alexander wrote:

BTW, my kernel is a stock Archlinux kernel 3.13.6.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1319589/comments/1

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On 2014-03-13T18:49:43+00:00 Alexdeucher wrote:

Does this work better with a 3.14 kernel?

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1319589/comments/2

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On 2014-03-14T18:26:18+00:00 Alexander wrote:

(In reply to comment #2)
> Does this work better with a 3.14 kernel?

I've just built 3.14 RC6 and it's all the the same with it.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1319589/comments/3

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On 2014-06-13T06:37:45+00:00 Arzeth0 wrote:

Created attachment 100961
dmesg (Radeon HD 4550, 3.15.0)

I have the same problem with Radeon HD 4550 using kernel 3.14.5 or 3.15.0 or 
vanilla 3.15-rc1.
I have also noticed that `[drm:rv730_stop_dpm] *ERROR* Could not force DPM to 
low` appears only after some gaming/etc.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1319589/comments/27

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On 2014-07-03T22:50:02+00:00 Thaddäus Tintenfisch wrote:

I'm also affected by this bug and I can confirm the performance hit
after resuming the system from suspend.

Radeon HD 4330 + kernel 3.15.2

[ 4772.472528] [drm:rv730_stop_dpm] *ERROR* Could not force DPM to low
[ 4772.954683] [drm] PCIE GART of 1024M enabled (table at 0x000000000025D000).
[ 4773.002123] [drm] ring test on 0 succeeded in 1 usecs
[ 4773.002180] [drm] ring test on 3 succeeded in 1 usecs
[ 4773.187038] [drm] ring test on 5 succeeded in 1 usecs
[ 4773.187042] [drm] UVD initialized successfully.
[ 4773.187067] [drm] ib test on ring 0 succeeded in 0 usecs
[ 4773.187089] [drm] ib test on ring 3 succeeded in 1 usecs
[ 4773.337007] [drm] ib test on ring 5 succeeded
[ 4773.507776] [drm:rv770_dpm_set_power_state] *ERROR* rv770_set_sw_state failed

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1319589/comments/28

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On 2014-11-05T16:40:35+00:00 Alexdeucher wrote:

Created attachment 108972
possible fix

Does this patch help?

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1319589/comments/30


** Changed in: dri
       Status: Unknown => Confirmed

** Changed in: dri
   Importance: Unknown => Medium

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  [drm:rv770_dpm_set_power_state] *ERROR* rv770_set_sw_state failed

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