diff options
| author | Alex Deucher <alexdeucher@gmail.com> | 2011-03-23 08:10:10 +0000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-03-24 20:24:32 +1000 |
| commit | fafcf94e2b5732d1e13b440291c53115d2b172e9 (patch) | |
| tree | 349e6eccfdd57b619aa8e7acca5468a689f03f58 /drivers/gpu/vga/vgaarb.c | |
| parent | 2d370f502ac872dc9b4cd05f9922b260e2874ec1 (diff) | |
drm/radeon/kms: fix hardcoded EDID handling
On some servers there is a hardcoded EDID provided
in the vbios so that the driver will always see a
display connected even if something like a KVM
prevents traditional means like DDC or load
detection from working properly. Also most
server boards with DVI are not actually DVI, but
DVO connected to a virtual KVM service processor.
If we fail to detect a monitor via DDC or load
detection and a hardcoded EDID is available, use
it.
Additionally, when using the hardcoded EDID, use
a copy of it rather than the actual one stored
in the driver as the detect() and get_modes()
functions may free it if DDC is successful.
This fixes the virtual KVM on several internal
servers.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/vga/vgaarb.c')
0 files changed, 0 insertions, 0 deletions