[Nouveau] [Bug 110993] GP107GLM [Quadro P1000 Mobile]: frequent failure to initialize displays on Thunderbolt dock

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110993

--- Comment #2 from Markus Wanner <markus at bluegap.ch> ---
Created attachment 144634
  --> https://bugs.freedesktop.org/attachment.cgi?id=144634&action=edit
test run 2 - annotated kern.log

For the second run, I re-enabled the runpm_fixes and tried to perform the exact
same steps as during run 1 to check if that makes a difference.  Same starting
conditions otherwise: dock already attached, but no monitors plugged into the
dock or the laptop.

Jun 21 10:49:13 calaton kernel: [  199.796511]: login
Jun 21 10:49:47 calaton kernel: [  234.186963]: plug HDMI into laptop directly,
works
Jun 21 10:50:00 calaton kernel: [  246.472930]: pull HDMI cable from laptop
Jun 21 10:51:34 calaton kernel: [  341.384332]: plug HDMI cable into dock - not
recognized, display lights up, but goes back into standby
Jun 21 10:52:20 calaton kernel: [  386.757948]: plug DP into dock - not
recognized, display lights up, but goes back into standby
Jun 21 10:52:57 calaton kernel: [  424.339095]: pull HDMI cable out of dock -
no change, display lights up, but goes back into standby
Jun 21 10:53:36 calaton kernel: [  462.525517]: plug HDMI cable into laptop -
recognized
Jun 21 10:53:51 calaton kernel: [  477.800605]: unplug the Dock - no change,
Levovo on HDMI and internal display remain active.
Jun 21 10:54:51 calaton kernel: [  537.523191]: re-plug the Dock - Dell not
recognized
Jun 21 10:55:16 calaton kernel: [  562.760425]: pull the HDMI cable
Jun 21 10:55:57 calaton kernel: [  604.330288]: plug HDMI cable into dock -
neither Dell nor Lenovo recognized
Jun 21 10:56:40 calaton kernel: [  647.138495]: pull the dock
Jun 21 10:56:55 calaton kernel: [  662.366295]: plug the Dock again
Jun 21 10:58:26 calaton kernel: [  752.986238]: pull the dock
Jun 21 10:58:41 calaton kernel: [  768.201244]: plug the Dock again
Jun 21 10:59:53 calaton kernel: [  840.353587]: pull the dock, pull the HDMI
from the dock
Jun 21 11:00:08 calaton kernel: [  855.417667]: plug the dock (with only the DP
display attached)
Jun 21 11:01:48 calaton kernel: [  955.154927]: pull the dock
Jun 21 11:02:03 calaton kernel: [  970.227148]: re-plug the dock (with only the
HDMI display attached)
Jun 21 11:03:14 calaton kernel: [ 1040.747229]: pull the dock, pull the HDMI
from the dock, re-attach DP to the dock
Jun 21 11:03:29 calaton kernel: [ 1055.830960]: attach HDMI to laptop -
recognized properly

/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 11:05:00 calaton kernel: [ 1146.466630]: re-plug the dock (with HDMI
already attached, DP on dock)
Jun 21 11:06:28 calaton kernel: [ 1234.650085]: unplug the DP from the dock
Jun 21 11:07:00 calaton kernel: [ 1266.460845]: re-plug the DP to the dock
Jun 21 11:07:30 calaton kernel: [ 1297.127079]: unplug the dock from the laptop

Again, the attached log is annotated with actions and observations.

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