Bug 13548

Summary: ATI VGA-O blank when activated in dual-headed mode
Product: xorg Reporter: Adr3nal D0S <adr3nald0s>
Component: Driver/RadeonAssignee: xf86-video-ati maintainers <xorg-driver-ati>
Status: RESOLVED FIXED QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium CC: adr3nald0s, erik
Version: git   
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
X server log
none
X configuration file none

Description Adr3nal D0S 2007-12-06 07:52:49 UTC
I have the xf86-video-ati driver setup to run on two monitors. But, VGA-0 never displays anything only LVDS does. This happens with both the 6.7.196 driver and a driver built from git commit 21ed435, which was the most recent when I tested this.
Comment 1 Adr3nal D0S 2007-12-06 07:53:51 UTC
Created attachment 12976 [details]
X server log
Comment 2 Adr3nal D0S 2007-12-06 07:54:36 UTC
Created attachment 12977 [details]
X configuration file
Comment 3 Alex Deucher 2007-12-06 08:40:29 UTC
Do both heads come up ok if you don't specify a position in your config?  How about if you turn the VGA port off and on?
xrandr --output VGA-0 --off
xrandr --output VGA-0 --mode 1600x1200
Comment 4 Adr3nal D0S 2007-12-06 12:02:26 UTC
(In reply to comment #3)
> Do both heads come up ok if you don't specify a position in your config?

Position?  If you mean the viewport setting, I removed that and it had no effect.

> How about if you turn the VGA port off and on?
> xrandr --output VGA-0 --off
> xrandr --output VGA-0 --mode 1600x1200

No effect.

I should have mentioned in the original bug that 'xrandr ... --off' does cut the signal to my monitor.  Using '--auto' or '--mode', the OSDs info "tab" will show the set resolution.  But, nothing shows up on the screen.

Comment 5 Alex Deucher 2007-12-11 09:08:55 UTC
Can you try again with ati git master?
Comment 6 Adr3nal D0S 2007-12-12 08:13:02 UTC
(In reply to comment #5)
> Can you try again with ati git master?

Thank you.  This has corrected the problem.  My VGA-0 now displays content.

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