<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - System hangs when some video output is disabled/enabled on Skylake platform in double/triple display configuration" href="https://bugs.freedesktop.org/show_bug.cgi?id=94822#c11">Comment # 11</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - System hangs when some video output is disabled/enabled on Skylake platform in double/triple display configuration" href="https://bugs.freedesktop.org/show_bug.cgi?id=94822">bug 94822</a> from <a class="email" href="mailto:christophe.prigent@intel.com" title="cprigent <christophe.prigent@intel.com>"> cprigent</a> <pre>Created <a href="attachment.cgi?id=123571" name="attach_123571" title="SKL-Y_4.6-rc6-447f243_kern.log">attachment 123571</a> <a href="attachment.cgi?id=123571&action=edit" title="SKL-Y_4.6-rc6-447f243_kern.log">[details]</a> SKL-Y_4.6-rc6-447f243_kern.log I reproduced a similar problem on SKL-Y with fresh kernel. Steps: ------- 1. Connect HDMI and DP screens 2. Boot 3. xrandr --output eDP1 --off 4. xrandr --outout eDP1 --auto Actual result: ---------------- 4. eDP stays black. Command does not respond Info ----- Could be the same as <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [SKL APL] WARN_ON(!wm_changed) hit in the WM code with multiple pipes enabled" href="show_bug.cgi?id=89055">bug 89055</a> Not reproduced with 4.6 rc6 from <a href="https://cgit.freedesktop.org/drm-intel/">https://cgit.freedesktop.org/drm-intel/</a> commit 871c895c2d3192a93a701b31d2576184ab070c66 Author: Rodrigo Vivi <<a href="mailto:rodrigo.vivi@intel.com">rodrigo.vivi@intel.com</a>> Date: Thu May 5 16:49:48 2016 -0700 drm-intel-nightly: 2016y-05m-05d-23h-49m-21s UTC integration manifest Setup ------ Hardware Platform: CPU : Intel(R) Core(TM) m5-6Y57 CPU @ 1.10GHz (family: 6, model: 78 stepping: 3) MCP : SKL-Y D1 2+2 QDF : QJK9 CPU : SKL D0 Chipset PCH: Sunrise Point LP C0 CRB : SKY LAKE Y LPDDR3 RVP3 CRB FAB2 Software Linux OS : Ubuntu 16.10 64 bits BIOS : SKLSE2R1.R00.B104.B01.1511110114 ME FW : 11.0.0.1191 Ksc (EC FW): 1.20 Kernel: drm-intel-nightly 4.6.0-rc6 447f243 from <a href="http://cgit.freedesktop.org/drm-intel">http://cgit.freedesktop.org/drm-intel</a> commit 447f2438e5ee3e9bb7d5cbe88fc44cdff74cc165 Author: Daniel Vetter <<a href="mailto:daniel.vetter@ffwll.ch">daniel.vetter@ffwll.ch</a>> Date: Sun May 8 18:21:27 2016 +0200 drm-intel-nightly: 2016y-05m-08d-16h-21m-00s UTC integration manifest drm: libdrm-2.4.67-11 ea78c17 from <a href="http://cgit.freedesktop.org/mesa/drm/">http://cgit.freedesktop.org/mesa/drm/</a> xorg-server-1.18.0-254 44e1c97 from git://git.freedesktop.org/git/xorg/xserver mesa: mesa-11.1.2 7bcd827 from <a href="http://cgit.freedesktop.org/mesa/mesa/">http://cgit.freedesktop.org/mesa/mesa/</a> cairo: tag 1.15.2 db8a7f1 from <a href="http://cgit.freedesktop.org/cairo">http://cgit.freedesktop.org/cairo</a> libva: libva-1.7.0-1 2339d10 from <a href="http://cgit.freedesktop.org/libva/">http://cgit.freedesktop.org/libva/</a> vaapi-intel-driver: 1.7.0.pre1 ab8e4e3 from <a href="http://cgit.freedesktop.org/vaapi/intel-driver">http://cgit.freedesktop.org/vaapi/intel-driver</a></pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>