Comment # 1
on bug 110993
from Markus Wanner
Created attachment 144633 [details]
test run 1 - annotated kern.log
Starting condition: dock already attached, but no monitors plugged into the
dock or the laptop. Using nouveau without runpm_fixes.
The attached log is collected from /var/log/kern.log via ssh, so as to preserve
most of the data even in case of a crash. I annotated it with actions
performed and observations made at the following points in time:
Jun 21 10:32:37 calaton kernel: [ 71.352739]: login
Jun 21 10:33:30 calaton kernel: [ 124.428250]: plug in HDMI cable into laptop
directly
Observation after a couple of seconds: works, proper image shown on the Lenovo
display. The grep command yields:
/sys/class/drm/card0-eDP-1/status:connected
/sys/class/drm/card1-DP-1/status:disconnected
/sys/class/drm/card1-DP-2/status:disconnected
/sys/class/drm/card1-HDMI-A-1/status:connected
/sys/class/drm/card1-eDP-2/status:disconnected
Jun 21 10:34:59 calaton kernel: [ 213.433544]: pull out HDMI cable - all fine
Jun 21 10:35:45 calaton kernel: [ 259.672821]: plug HDMI cable into dock - not
recognized, display lights up, but goes back into standby
Jun 21 10:36:57 calaton kernel: [ 331.284818]: plug Dell (DP) into dock - not
recognized, display lights up, but goes back into standby
Jun 21 10:37:22 calaton kernel: [ 356.470787]: pull HDMI cable out of dock -
no change, display lights up, but goes back into standby
Jun 21 10:38:42 calaton kernel: [ 436.169622]: plug HDMI cable into laptop -
recognized
Jun 21 10:39:00 calaton kernel: [ 453.731368]: unplug the Dock - no change,
Levovo on HDMI and internal display remain active.
Jun 21 10:40:10 calaton kernel: [ 524.314909]: re-plug the Dock - Dell not
recognized
Jun 21 10:41:10 calaton kernel: [ 584.005627]: pull HDMI cable from the laptop
Jun 21 10:41:31 calaton kernel: [ 604.833610]: plug HDMI cable into dock -
neither Dell nor Lenovo recognized
Jun 21 10:42:32 calaton kernel: [ 665.790854]: pull the Dock
Jun 21 10:42:47 calaton kernel: [ 681.020228]: plug the Dock again
Jun 21 10:44:05 calaton kernel: [ 759.618299]: crash, laptop fully
unresponsive to keyboard, mouse or network inputs
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