On a Lenovo E530 (Ivy Bridge), DPMS Standby/Suspend don't work properly on VGA : the display is blanked for one second then is turned back on (too fast to know if it's DPMS or only a black screen), or it even stays on. DPMS Off works properly. It's systematic, for example with "xset dpms force standby" or "xset dpms force suspend". 3.7-rc4 doesn't work, 3.6.2 works. I've bisected, the regression starts with commit b2cabb0e1d205708dab11bd9e1b97fd080537096.
commit b2cabb0e1d205708dab11bd9e1b97fd080537096 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Sun Jul 1 22:42:24 2012 +0200 drm/i915: convert dpms functions of dvo/sdvo/crt
Created attachment 69544 [details] [review] drm/i915/crt: fix DPMS standby and suspend mode handling Please try the attached patch, thanks.
(In reply to comment #2) > Created attachment 69544 [details] [review] [review] > drm/i915/crt: fix DPMS standby and suspend mode handling > > Please try the attached patch, thanks. Great, it fixes the bug !
Fixed merged into drm-intel-fixes commit 4a8dece21eea0ad6aca442272673d48693cd93b4 Author: Jani Nikula <jani.nikula@intel.com> Date: Mon Nov 5 13:51:51 2012 +0200 drm/i915/crt: fix DPMS standby and suspend mode handling
Closing resolved+fixed. Verified by Reporter. CommitDate: Fri Nov 16 2012.
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