Bug 34802 - [radeon] Screen blinking when reclocking (especially with dynpm power method)
Summary: [radeon] Screen blinking when reclocking (especially with dynpm power method)
Status: RESOLVED OBSOLETE
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(DRI - non Intel) (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: drivers_video-dri
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-05-10 07:13 UTC by txdevel
Modified: 2013-12-23 12:12 UTC (History)
2 users (show)

See Also:
Kernel Version: 2.6.39
Subsystem:
Regression: No
Bisected commit-id:


Attachments

Description txdevel 2011-05-10 07:13:45 UTC
It's always happen when clocks changes. In this moment I observe a colored vertical lines during 1 second. When I change power method or power profile manually it's happens one time too.
The lines like this: http://radeon.koolfy.be/wp-content/uploads/2011/03/garbage.jpg

$ lspci | grep -i vga
01:00.0 VGA compatible controller: ATI Technologies Inc Madison [Mobility Radeon HD 5000 Series]
Comment 1 hayarms 2011-06-08 00:45:17 UTC
It happens to me too, and I think it happens to everyone.

It is a very well known bug.

As a temporary workaround I use the profile power_method with the low profile. It doesn't hurt the performance of my desktop even when using composinting and I can always set to "high" the card with a script when I need more power (like running heavy 3d programs). Anyway, I have a 5850 card, so people with a lower end card may not find the low profile suitable for them.

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