Bug 18047

Summary: Mobility Radeon HD 3470 - dual head, second screen stays blank
Product: xorg Reporter: Andreas Juch <freedesktop>
Component: Driver/radeonhdAssignee: Luc Verhaegen <lverhaegen>
Status: RESOLVED DUPLICATE QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: 7.4 (2008.09)   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
xorg log
none
vga rom
none
lspci
none
xrandr output
none
xorg.conf none

Description Andreas Juch 2008-10-13 11:45:24 UTC 
Hi!

I tried todays git-version of the radeonhd driver, but it still has problems with my card/setup. There are two screens (1680x1050 and 1280x1024) connected to both DVI-ports of the card. If I start gdm with the supplied xorg.conf, then both screens run in clone-mode (1280x1024). If I run xrandr --output ... --auto, the smaller screen blanks and outputs "No signal detected". If I manually set both screens to the correct resolution, the smaller screen says "Out of range". I tried a lot in xorg.conf, but setting preferred-mode for both screens only gave me a "widescreen-clone mix" where both screens are in clone mode, but i can move the mouse out of the visible area.

I hope everything needed to find the cause is attached.

Best regards,
Andreas
Comment 1 Andreas Juch 2008-10-13 11:46:07 UTC 
Created attachment 19628 [details]
xorg log
Comment 2 Andreas Juch 2008-10-13 11:46:47 UTC 
Created attachment 19629 [details]
vga rom
Comment 3 Andreas Juch 2008-10-13 11:47:09 UTC 
Created attachment 19630 [details]
lspci
Comment 4 Andreas Juch 2008-10-13 11:47:50 UTC 
Created attachment 19631 [details]
xrandr output
Comment 5 Andreas Juch 2008-10-13 11:48:22 UTC 
Created attachment 19632 [details]
xorg.conf
Comment 6 Andreas Juch 2008-10-13 13:13:57 UTC 
I just tried the new version 1.2.3, no changes. I also forgot to mention, that the card is a "Sapphire Radeon HD 3470", passive cooled.
Comment 7 Egbert Eich 2008-11-01 11:55:58 UTC 

*** This bug has been marked as a duplicate of bug 16892 ***

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