Bug 70542 - [r600g] HD5450 + uvd + hdmi flickers
Summary: [r600g] HD5450 + uvd + hdmi flickers
Status: RESOLVED MOVED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Radeon (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Default DRI bug account
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-10-16 18:06 UTC by dagg
Modified: 2019-11-19 08:39 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


Attachments
seat (422 bytes, text/plain)
2013-10-16 18:06 UTC, dagg
no flags Details
use frac FB div on DCE4+ (721 bytes, patch)
2013-10-16 21:00 UTC, Alex Deucher
no flags Details | Splinter Review
seat's xorg log (70.22 KB, text/plain)
2013-10-19 07:15 UTC, dagg
no flags Details
setup's dmesg while flickering occuers (74.00 KB, text/plain)
2013-10-19 07:15 UTC, dagg
no flags Details

Description dagg 2013-10-16 18:06:41 UTC
Created attachment 87752 [details]
seat

greetings,

I have a HD5450 hooked up to my lcd tv as part of a multiseat setup.
every few seconds the feed flickers.

usually I use xbmc to view content but it happens with VBox too.
Comment 1 Alex Deucher 2013-10-16 20:52:39 UTC
Please attach your xorg log and dmesg output.  Does setting radeon.disp_priority=2 on the kernel command line in grub help?
Comment 2 Alex Deucher 2013-10-16 21:00:09 UTC
Created attachment 87758 [details] [review]
use frac FB div on DCE4+

Does this patch help?
Comment 3 dagg 2013-10-19 07:13:25 UTC
greetings,

sorry it took long to answer, it seems that the time between one flickering to another has got bigger, from one every sec I have now one every few minutes.

this might be related to the fact that I'm running mesa, libdrm and xf86-video-ati from git an update them every week.

anyway, here are dmesg and xorg log (I was sure I attached it but it seems that i didn't).

I'll try now with radeon.disp_priority=2 and report back.
Comment 4 dagg 2013-10-19 07:15:04 UTC
Created attachment 87843 [details]
seat's xorg log
Comment 5 dagg 2013-10-19 07:15:39 UTC
Created attachment 87844 [details]
setup's dmesg while flickering occuers
Comment 6 dagg 2013-10-19 07:25:04 UTC
tried with radeon.disp_priority=2, screen still flickers, this time much earlier.

trying with the patch and without radeon.disp_priority=2
Comment 7 dagg 2013-10-19 09:47:30 UTC
with the patch applied it still flickers, moreover it might have increased the rate of flickering.

not sure if it is relevant but I use a 10 meters cable to connect the tv to the computer
Comment 8 Christian König 2013-10-19 09:59:12 UTC
(In reply to comment #7)
> not sure if it is relevant but I use a 10 meters cable to connect the tv to
> the computer

That's a bit much. Could you try with a shorter one to make sure it's not the cable?
Comment 9 dagg 2013-10-19 16:17:39 UTC
(In reply to comment #8)
> (In reply to comment #7)
> > not sure if it is relevant but I use a 10 meters cable to connect the tv to
> > the computer
> 
> That's a bit much. Could you try with a shorter one to make sure it's not
> the cable?

nope... tv is too far. anyway, didn't had any issues when I was using the intel gpu.
Comment 10 Martin Peres 2019-11-19 08:39:17 UTC
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/398.


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