[Bug 21767] xf86-video-ati-6.12.2 Only stripes on LVDS when the second monitor is connected

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sun May 17 08:04:02 PDT 2009


--- Comment #12 from Alex Deucher <agd5f at yahoo.com>  2009-05-17 08:04:01 PST ---
Looks like your system is one of the ones that requires proper handling of
router objects.  It's detecting both DVI-0 and HDMI-0 as attached since they
share a gpio for ddc.  You should be able to force HDMI off in order to change
the mode on DVI:
xrandr --output HDMI-0 --off
xrandr --output DVI-0 --mode 1280x1024

Can you attach your video bios?

(as root)
cd /sys/bus/pci/devices/<pci bus id of video card>/
echo 1 > rom
cat rom > /tmp/vbios.rom
echo 0 > rom

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