Red Hat Bugzilla – Bug 433520
Latest driver won't light the VGA display on a Radeon X300SE
Last modified: 2009-01-09 02:40:05 EST
Description of problem:
I have an ATI Radeon X300SE card (identified by lspci as an 'RV370 5B60')
connected to two LCD panels, one by VGA and one by DVI. When I install
the latest xorg-x11-drv-ati update, the radeon driver no longer lights
up the VGA panel when it starts; instead the panel drops into power down
sleep mode. This happens with both my usual xorg.conf and with no xorg.conf.
When I run with my usual xorg.conf (which preconfigures the panels and
uses EXA acceleration), the DVI panel also comes up with very slow
graphics updates when doing things like scrolling text in xterm. Turning
off the VGA panel in xrandr fixes this (and also relocates what the
DVI panel is displaying).
Using xrandr to turn off then VGA output and then turn it back on makes
This worked with driver versions as recent as xorg-x11-drv-ati-6.7.196-2.fc8
and as old as the xorg-x11-drv-ati version on the install CD (which I had to
fall back to because it is the only other version still available online).
The output of 'xrandr -q' is identical between a working and a non-working
configuration; I will attach it and the Xorg.0.log files for both cases to
this bug report.
Version-Release number of selected component (if applicable):
Created attachment 295328 [details]
xrandr -q output
Created attachment 295329 [details]
The Xorg.0.log file from a working driver version (version 6.7.195-3.fc8,
from the Fedora 8 base install).
Created attachment 295330 [details]
The Xorg.0.log from version 6.7.197-1.fc8, which doesn't work.
This (and the last Xorg.0.log) were from sessions with no /etc/X11/xorg.conf
In a spirit of experimentation, I built a 6.8.0 + git fixes version
of the driver and it did not have the problem with lighting the VGA
LCD panel. It still did have the problems with really slow performance
when EXA acceleration is enabled. (And other really slow performance
when EXA is *not* enabled, which is common to all driver versions and
the reason I want to use EXA.)
Just from reading 'git log' of the xorg-x11-drv-ati repository, I
suspect that panel issue is commit 8d64be6ebd7f50d4bcb587afeee8252c1367dc77,
but I have not tried to extract just this patch and testing it on
top of 6.7.197.
I believe I'm having this issue as well. R350 based chip and after doing a
recent update (Fedora 8) only my DVI display is on although xrandr sees the VGA
display just fine and seems to think it's working.
When I exit X the VGA display comes back on again.
BTW Chris, do you have an SRPM of your "fixed" version? Would be interested in
testing it on my machine.
I rebuild the 6.8.0 RPM's from rawhide for Fedora 8 and my VGA display once
Just had to remove the Requires and BuildRequires for the newer version of xorg.
Created attachment 295709 [details]
Xorg Log from 6.7.197 (VGA head doesn't come on)
Created attachment 295710 [details]
Xorg Log from 6.8.0 (VGA head comes on)
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