My guess is that this is
commit fc1e0702b25e647cb423851fb7228989fec28bd6
Author: Daniel Vetter <[email protected]>
Date: Wed May 29 11:25:28 2013 +0100
sna: fixup up possible_clones kms->X impedance mismatch
We need to be a notch more careful with remapping the possible clones
mask from the kernel:
- SDVO and Haswell DDI have multiple connectors mapping to the same encoder.
- The connector list can be reordered compared to the encoder list.
This is used to move eDP/LVDS to the front.
Also add even more debug output.
Signed-off-by: Daniel Vetter <[email protected]>
fixed in 2.21.9
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1161112
Title:
Raring regression: SNA fails completely; UXA causes random hangs
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