Bug 48197

Summary: DVI monitor connected to an Ati x1550 on standard resolution blinks.
Product: DRI Reporter: ter4py
Component: DRM/RadeonAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED MOVED QA Contact:
Severity: major    
Priority: medium    
Version: unspecified   
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
dmesg from fedora 16
none
Xorg log none

Description ter4py 2012-04-02 07:39:24 UTC 
Created attachment 59380 [details]
dmesg from fedora 16

I have an Ati radeon x1550, and connected to that a DVI monitor (and another to
the VGA, but this bug is present also when only the DVI monitor is connected)
This bug appears in every distribution and kernel I tried, the last one is fedora 16, but I tried debian 6 too and Archlinux with the latest kernel.
Description of problem:
DVI screen, if on standard resolution (1680x1050) blinks from the tty to the Gnome dekstop, and especially when something like Firefox is made fullscreen:
I recorded a video to explain this better:
https://www.youtube.com/watch?v=8Tcjb6p0Yi4
Comment 1 ter4py 2012-04-02 07:40:17 UTC 
Created attachment 59381 [details]
Xorg log
Comment 2 Alex Deucher 2012-04-02 07:46:28 UTC 
Does booting with radeon.disp_priority=2 on the kernel command line in grub help?
Comment 3 ter4py 2012-04-02 07:57:35 UTC 
It doesn't help at all.

(In reply to comment #2)
> Does booting with radeon.disp_priority=2 on the kernel command line in grub
> help?
Comment 4 Alex Deucher 2012-04-02 08:11:53 UTC 
Does it only blink on the 1680x1050 mode or all modes on the DVI monitor?
Comment 5 ter4py 2012-04-02 08:25:14 UTC 
Only in the 1680x1050 mode that way.
But it might happen very rarely on 1480x900. 
I'm not sure about this though, it didn't happen recently.
(In reply to comment #4)
> Does it only blink on the 1680x1050 mode or all modes on the DVI monitor?
Comment 6 Martin Peres 2019-11-19 08:25:58 UTC 
-- GitLab Migration Automatic Message --

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