https://bugs.freedesktop.org/show_bug.cgi?id=39027

Thomas Lindroth thomas.lindroth@gmail.com changed:

What |Removed |Added ---------------------------------------------------------------------------- Product|xorg |DRI Component|Driver/Radeon |DRM/Radeon AssignedTo|xorg-driver-ati@lists.x.org |dri-devel@lists.freedesktop | |.org QAContact|xorg-team@lists.x.org |

--- Comment #1 from Thomas Lindroth thomas.lindroth@gmail.com 2011-07-07 02:50:21 PDT --- It is a kernel regression. A bisect on the drivers/gpu folder resulted in the following likely candidate.

commit 1e85e1d07b9255bd52c557f1a77fb72ccfacaf1c Author: Alex Deucher alexdeucher@gmail.com Date: Fri May 20 04:34:29 2011 -0400

drm/radeon/kms: simplify hotplug handler logic

In the hotplug handler, just use the drm dpms functions. If the monitor is plugged in, turn it on, if it's not, turn it off. This also reduces power usage by turning off the encoder and crtc when the monitor is unplugged.

Signed-off-by: Alex Deucher alexdeucher@gmail.com Signed-off-by: Dave Airlie airlied@redhat.com