REGRESSION: dpms-on broken (drm_radeon,displayport) -- bisected

[Lars Doelle]

Hi Alex,
Hi All,


> Any chance you could bisect it?

good news. It's a two-line patch.


commit fb668c2fed628179c7aa409a0de39a2b96bed18c
Author: Alex Deucher <alexdeucher at gmail.com>
Date:   Wed Mar 31 14:42:11 2010 -0400

    drm/radeon/kms/evergreen: get DP working

    Need to enable the VID stream after link training

    Signed-off-by: Alex Deucher <alexdeucher at gmail.com>
    Signed-off-by: Dave Airlie <airlied at redhat.com>


Please note the lines from from the [kernel.log] in my original report:

> : [drm:dp_link_train] ERROR clock recovery tried 5 times
> : [drm:dp_link_train] ERROR clock recovery failed
> : [drm:dp_link_train] ERROR channel eq failed: 5 tries
> : [drm:dp_link_train] ERROR channel eq failed


> >> i write to report a regression
> >> The effect is, that after DPMS-OFF, the monitor cannot be reactivated
> >> locally by a key press or remotely via `xset dpms force on´.
> >> I can work around the issue switching the monitor off and on again.

> >> I can provide more information on request and offer help testing patches.


Kind regards

  Lars