http://bugs.freedesktop.org/show_bug.cgi?id=19348
Summary: Radeon driver refuses mode advertised by monitor.
Product: xorg
Version: 7.4
Platform: x86 (IA32)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/Radeon
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
Created an attachment (id=21591)
--> (http://bugs.freedesktop.org/attachment.cgi?id=21591)
Working Xorg.0.log: note that the monitor 1920x1200 mode is rejected, but hand
coded one with same values is fine!
The Radeon driver is unable to drive my nice new HP LP2475w at it's native
resultion of 1920x1200 out of the box, because it rejects the mode settings in
the Monitor EDID data. According to the logs:
(II) RADEON(0): Not using default mode "1920x1200" (monitor doesn't support
reduced blanking)
However, if I suck the preferred mode out with get-edid | parse-edid, and put
that mode into the Monitor section of xorg.conf, then the mode is accepted by
the driver & works perfectly.
I think this counts as a bug, although I'm not sure precisely who to blame!
I'm using the radeon driver & X version from Debian experiental. The radeon
driver is fairly close to git head as of the end of Dec 2008. Xorg is release
7.4
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