I completed the bisect, here is the result:
$ git bisect bad fdbc3b1f639bb2cbfb32c612b2699e0ba373317d
fdbc3b1f639bb2cbfb32c612b2699e0ba373317d is the first bad commit
$ git show
commit fdbc3b1f639bb2cbfb32c612b2699e0ba373317d
Author: Jani Nikula <jani.nik...@intel.com>
Date: Tue Nov 12 17:10:13 2013 +0200
drm/i915/dp: set sink to power down mode on dp disable
We used to put the local sink and any downstream sinks to power down
mode at disable or dpms off using the DPCD SET_POWER register, until
this was broken by
commit e8cb455876fa8f67c6aba394d0a14b697bf04cc3
Author: Daniel Vetter <daniel.vet...@ffwll.ch>
Date: Sun Jul 1 13:05:48 2012 +0200
drm/i915/dp: convert to encoder disable/enable
Fix it.
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
Reviewed-by: Todd Previte <tprev...@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vet...@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index eb8139d..0b2e842 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1774,7 +1774,7 @@ static void intel_disable_dp(struct intel_encoder
*encoder)
* ensure that we have vdd while we switch off the panel. */
ironlake_edp_panel_vdd_on(intel_dp);
ironlake_edp_backlight_off(intel_dp);
- intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
+ intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF);
ironlake_edp_panel_off(intel_dp);
/* cpu edp my only be disable _after_ the cpu pipe/plane is disabled. */
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1343543
Title:
[Dell XPS 15 L502X] X stops responding to input after entering idle
power saving (screen off)
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