[Bug 100641] New: Broadwell-U HD Graphics 5500. DisplayPort status unknown after suspend/resume
bugzilla-daemon at bugzilla.kernel.org
bugzilla-daemon at bugzilla.kernel.org
Mon Jun 29 03:03:50 PDT 2015
https://bugzilla.kernel.org/show_bug.cgi?id=100641
Bug ID: 100641
Summary: Broadwell-U HD Graphics 5500. DisplayPort status
unknown after suspend/resume
Product: Drivers
Version: 2.5
Kernel Version: 4.1.0
Hardware: Intel
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - Intel)
Assignee: intel-gfx-bugs at lists.freedesktop.org
Reporter: kuddel.mail at gmx.de
CC: intel-gfx-bugs at lists.freedesktop.org
Regression: No
I am using a Thinkpad X1 Carbon 3rd with
Intel Core i7-5500U CPU with integrated Intel HD Graphics 5500
after suspend and resume the display status of all display ports is unknown.
Output before suspend looks like
/sys/class/drm/card0-DP-1/status:disconnected
/sys/class/drm/card0-DP-2/status:disconnected
/sys/class/drm/card0-eDP-1/status:connected
/sys/class/drm/card0-HDMI-A-1/status:disconnected
/sys/class/drm/card0-HDMI-A-2/status:disconnected
Output after suspend looks like
/sys/class/drm/card0-DP-1/status:unknown
/sys/class/drm/card0-DP-2/status:unknown
/sys/class/drm/card0-eDP-1/status:unknown
/sys/class/drm/card0-HDMI-A-1/status:unknown
/sys/class/drm/card0-HDMI-A-2/status:unknown
As systemd reads this values to interpret correct lid closure behaviour
subsequent lid closures do not suspend my machine.
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