https://bugzilla.kernel.org/show_bug.cgi?id=188321

Bug ID: 188321 Summary: i915: black screen after disconnecting HDMI monitor Product: Drivers Version: 2.5 Kernel Version: 4.x Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: kernel@stefaus.de Regression: No

Created attachment 245481 --> https://bugzilla.kernel.org/attachment.cgi?id=245481&action=edit dmesg with drm.debug=14

Since new install of my Linux System and using a 4.4+ Kernel (before 3.19) I'm getting kernel exceptions every time I disconnect my via HDMI connected Monitor.

Steps: - booting to desktop without problems - disconnect HDMI - eDP is showing desktop for ~2 seconds - eDP turns black, no keyboard inputs, the rest keeps running

No difference if HDMI connected while/after boot, I tried different 4.4+ Kernel Versions from Ubuntu to Mainline, every time nearly the same output.

[ 90.275535] [drm:ironlake_crtc_enable [i915]] *ERROR* mode set failed: pipe A stuck [ 90.329696] ------------[ cut here ]------------ [ 90.329789] WARNING: CPU: 3 PID: 1834 at /home/kernel/COD/linux/drivers/gpu/drm/i915/intel_display.c:14221 intel_atomic_commit_tail+0xf93/0xfc0 [i915]

see attached dmesg for the full exception trace.