http://bugs.freedesktop.org/show_bug.cgi?id=23901
Summary: radeon KMS sends no input signal to LCD (regression in
2.6.31)
Product: DRI
Version: XOrg CVS
Platform: Other
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: DRM/Radeon
AssignedTo: dri-devel@lists.sourceforge.net
ReportedBy: ad...@voicenet.com
Created an attachment (id=29484)
--> (http://bugs.freedesktop.org/attachment.cgi?id=29484)
'dmesg | grep drm' from Slackware 13
I have Fedora 11 on one drive, using 2.6.30.5-43, and running KMS + Xorg
wonderfully on my x850. Both monitors are detected and initialized at their
native resolution. This is an LCD at 1280x1024 and a CRT at 1600x1200. As
expected, the console on the CRT only uses 1280x1024 of the screen, even though
the monitor is being run at 1600x1200.
I have Slackware 13 on another drive, and compiled the 2.6.31 kernel this
morning, enabling radeon KMS by default. I updated drm (with the experimental
radeon API), Mesa, and xf86-video-ati. The computer boots up, and as soon as
the framebuffer kicks in, the LCD displays "no input signal" and turns off
after a few seconds. The CRT is set to 1600x1200, and only uses 1280x1024 of
the screen, as if the console driver knows that the LCD is attached and is
running at 1280x1024. I can start X, but only the CRT is usable. The LCD
remains asleep. Even if I use xrandr to adjust the resolution on the LCD, it
doesn't flicker and doesn't display anything.
I am initially attaching 6 files. 'dmesg | grep drm' from both F11 and
slackware 13, Xorg.0.log from both distributions, and 'xrandr --verbose' from
both distributions. The only difference between the two distributions is that
F11 is 32 bit and Slackware 13 is 64 bit.
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