Created attachment 51449 [details] xorg log file On the Capella mobile platform with eDP display, it only has one native resolution supported, as following shows. This is not a regression. It existed on 2.6.38, 2.6.39, 3.0 and 3.1-rc4. [root@x-e6510 ~]# xrandr Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192 eDP1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 193mm 1366x768 60.0 + 40.0 VGA1 disconnected (normal left inverted right x axis y axis) HDMI1 disconnected (normal left inverted right x axis y axis) DP1 disconnected (normal left inverted right x axis y axis) HDMI2 disconnected (normal left inverted right x axis y axis) HDMI3 disconnected (normal left inverted right x axis y axis) DP2 disconnected (normal left inverted right x axis y axis) DP3 disconnected (normal left inverted right x axis y axis) 1366x768 (0x49) 69.0MHz h: width 1366 start 1398 end 1422 total 1426 skew 0 clock 48.4KHz v: height 768 start 771 end 775 total 806 clock 60.0Hz
The non-native modes will be restored by reverting commit 212fa9868767637e8f430485eeb522c99e63fd16 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Wed Jul 13 21:11:14 2011 +0100 Disable adding normal RTF modes for an eDP This is causing a hard hang with 2.6.39+, we don't know why so play safe and disable for the time being. References: https://bugs.freedesktop.org/show_bug.cgi?id=38012 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
commit ac7df2919b92c9fe47c6745975e1848932f989e8 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Wed Nov 16 23:25:16 2011 +0000 Revert "Disable adding normal RTF modes for an eDP" This reverts commit 212fa9868767637e8f430485eeb522c99e63fd16. The underlying register programming for eDP is now believed to be fixed as of linux-3.1. References: https://bugs.freedesktop.org/show_bug.cgi?id=38012 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41070 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
It works well now.
Closing old verified.
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