Bug 20814

Summary: R4xxATOM on Radeon Mobility X700 makes LVDS and CRT show the same content in the LVDS native mode
Product: xorg Reporter: Chí-Thanh Christopher Nguyễn <chithanh>
Component: Driver/RadeonAssignee: xf86-video-ati maintainers <xorg-driver-ati>
Status: RESOLVED FIXED QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
Xorg.0.log
none
Xorg.0.log
none
vbios.rom none

Description Chí-Thanh Christopher Nguyễn 2009-03-23 09:18:50 UTC 
Spin-off from bug 13533 comment 24

Using xf86-video-ati 6.12.1 and a Radeon Mobility X700 (rv410), if I enable R4xxATOM then the LVDS and VGA-0 will always show the same content, and the CRT will always be driven at 1280x800 resolution (the LVDS native mode). Setting other modes in xrandr has no effect.

If I change the monitor layout eg. with xrandr --output VGA-0 --right-of LVDS then both displays show what LVDS should show.
Comment 1 Chí-Thanh Christopher Nguyễn 2009-03-23 09:19:51 UTC 
Created attachment 24167 [details]
Xorg.0.log

Xorg.0.log when R4xxATOM is enabled
Comment 2 Chí-Thanh Christopher Nguyễn 2009-03-23 09:20:24 UTC 
Created attachment 24168 [details]
Xorg.0.log

Xorg.0.log when R4xxATOM is disabled
Comment 3 Alex Deucher 2009-03-23 09:35:14 UTC 
can you attach your video bios?

(as root):
cd /sys/bus/pci/devices/<pci device id>/
echo 1 > rom
cat rom > /tmp/vbios.rom
echo 0 > rom
Comment 4 Alex Deucher 2009-03-23 09:56:34 UTC 
fixed in 7aaf5f08e4147b75c4975e6d680d3f5a93424164
Comment 5 Chí-Thanh Christopher Nguyễn 2009-03-24 05:11:52 UTC 
Created attachment 24189 [details]
vbios.rom

Thank you very much for the quick response, the problem is fixed now. I have attached the vbios.rom in case it is still of interest.

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