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DaggyStyle
Watchman
Joined: 22 Mar 2006
Posts: 5910
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 Posted: Tue Feb 01, 2011 8:13 pm Post subject: screen occasional flickers |
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hello
I've updated xorg and kde for latest today, also migrated from hal to udev.
problem is that my screen occasional flickers.
did anyone noticed that too?
I'm using radeon from git with kms.
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Only two things are infinite, the universe and human stupidity and I'm not sure about the former - Albert Einstein |
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pingufunkybeat
l33t
Joined: 01 Dec 2004
Posts: 610
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| Posted: Wed Feb 02, 2011 10:31 pm Post subject: |
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Are you using dynamic powermanagement?
Try switching to profile, the flickering should stop. |
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DaggyStyle
Watchman
Joined: 22 Mar 2006
Posts: 5910
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| Posted: Thu Feb 03, 2011 6:20 am Post subject: |
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| pingufunkybeat wrote: | Are you using dynamic powermanagement?
Try switching to profile, the flickering should stop. |
not sure, I'll check it. thanks for the tip.
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DaggyStyle
Watchman
Joined: 22 Mar 2006
Posts: 5910
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| Posted: Thu Feb 03, 2011 5:19 pm Post subject: |
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not working, it was in profile.
any other ideas?
also, I have no /sys/kernel/debug/dri/0/radeon_pm_info
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pingufunkybeat
l33t
Joined: 01 Dec 2004
Posts: 610
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| Posted: Thu Feb 03, 2011 5:43 pm Post subject: |
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Which kernel?
Powersaving is in the kernel, perhaps something went wrong there.
I get flickering, but this is because I use dynpm by default. I switch to high profile before running something demanding, like a game. In profile mode, it never flickers for me. This is on vanilla 2.6.37. |
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DaggyStyle
Watchman
Joined: 22 Mar 2006
Posts: 5910
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| Posted: Thu Feb 03, 2011 6:35 pm Post subject: |
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| pingufunkybeat wrote: | Which kernel?
Powersaving is in the kernel, perhaps something went wrong there.
I get flickering, but this is because I use dynpm by default. I switch to high profile before running something demanding, like a game. In profile mode, it never flickers for me. This is on vanilla 2.6.37. |
2.6.37-gentoo
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DaggyStyle
Watchman
Joined: 22 Mar 2006
Posts: 5910
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| Posted: Thu Feb 03, 2011 6:48 pm Post subject: |
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addition:
| Code: | Starfleet dagg # cat /sys/kernel/debug/dri/0/radeon_pm_info
default engine clock: 725000 kHz
current engine clock: 297000 kHz
default memory clock: 1000000 kHz
current memory clock: 999000 kHz
voltage: 1270 mV
PCIE lanes: 16
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Uli Sing
Apprentice
Joined: 03 May 2010
Posts: 197
Location: MUC
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| Posted: Thu Feb 03, 2011 7:44 pm Post subject: Re: screen occasional flickers |
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| DaggyStyle wrote: | I've updated xorg and kde for latest today, also migrated from hal to udev.
problem is that my screen occasional flickers.
did anyone noticed that too? |
Yes for kernel 2.35, no for kernel 2.37.
Do you use KMS? |
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DaggyStyle
Watchman
Joined: 22 Mar 2006
Posts: 5910
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| Posted: Thu Feb 03, 2011 7:51 pm Post subject: Re: screen occasional flickers |
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| Uli Sing wrote: | | DaggyStyle wrote: | I've updated xorg and kde for latest today, also migrated from hal to udev.
problem is that my screen occasional flickers.
did anyone noticed that too? |
Yes for kernel 2.35, no for kernel 2.37.
Do you use KMS? |
but ofcourse.
I can say that the flickering started after I've removed hal from my system and switched udev flag on for xorg-server
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Uli Sing
Apprentice
Joined: 03 May 2010
Posts: 197
Location: MUC
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| Posted: Thu Feb 03, 2011 8:36 pm Post subject: Re: screen occasional flickers |
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| DaggyStyle wrote: |
but ofcourse. |
But of course...
I love a good sense of humor. 
Wait! I had such a thing using a matrox graphics card in combination with some gnome stuff.
I'll sleep on this. Perhaps I remember tomorrow... |
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Uli Sing
Apprentice
Joined: 03 May 2010
Posts: 197
Location: MUC
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| Posted: Fri Feb 04, 2011 11:45 am Post subject: |
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Slept on that but I'm still not sure.
I believe it had to do with mesa in my case.
Sorry... |
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DaggyStyle
Watchman
Joined: 22 Mar 2006
Posts: 5910
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| Posted: Fri Feb 04, 2011 6:42 pm Post subject: |
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bug opened: https://bugs.gentoo.org/show_bug.cgi?id=353712
this is a drm kernel bug
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loopx
Advocate
Joined: 01 Apr 2005
Posts: 2787
Location: Belgium / Liège
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| Posted: Tue Feb 15, 2011 10:09 pm Post subject: |
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Hi,
Got the same problem. Since an update (~amd64), my screen (I think it come from KDE ...) occasionally flickering, one time per 2-3 min.
Got a radeon 4550 + 2.6.37 + KMS
Tried ebuild 9999 for driver and mesa/libdrm and problem is still there. Don't know what happening, I not really switched (I've done nothing for) and so, don't know what Xorg/KDE is using (UDEV/HAL).
Any idea ? I think the problem was already here with the previous kernel version 2.6.36 ...
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