Comment # 5 on bug 1029634 from Oliver Kurz

previously reproduced in awesome, now in lxde. Trying to simplify reproduction
and gather some data, e.g. skip the STR part and/or docking/undocking.

Now in icewm because even simpler, no locking screen, etc. Looks like in icewm
there is some automated screen detection so it might be it detects the external
screen and activates when it didn't in before. 

## E1
* SKIP put system to STR in the docking station
* SKIP wait for system to be in STR
* SKIP close lid
* remove from dock
* open lid (system starts up)
* call `xrandr --outpxrandr --output eDP1 --primary --auto --output DP1-1
--off; xrandr --output eDP1 --primary --auto --output DP1-1 --auto --left-of
eDP1`
* close lid (system goes to STR)
* put it back to dock
* open lid (system starts up)
* call `xrandr --outpxrandr --output eDP1 --primary --auto --output DP1-1
--off; xrandr --output eDP1 --primary --auto --output DP1-1 --auto --left-of
eDP1`
* wait some seconds
* observe the problem (blinking caps lock led, system does not react anymore)

--> not successful, so need to put to STR first from docking

## E2
* put system to STR in the docking station
* wait for system to be in STR
* close lid
* remove from dock
* open lid (system starts up)
* call `xrandr --outpxrandr --output eDP1 --primary --auto --output DP1-1
--off; xrandr --output eDP1 --primary --auto --output DP1-1 --auto --left-of
eDP1`
* SKIP close lid (system goes to STR)
* put it back to dock
* SKIP open lid (system starts up)
* call `xrandr --outpxrandr --output eDP1 --primary --auto --output DP1-1
--off; xrandr --output eDP1 --primary --auto --output DP1-1 --auto --left-of
eDP1`
* wait some seconds
* observe the problem (blinking caps lock led, system does not react anymore)

--> already panicked after putting it live back to dock

## E3

* put system to STR in the docking station
* wait for system to be in STR
* SKIP close lid
* remove from dock
* SKIP open lid (system starts up) -> start
* SKIP call `xrandr --outpxrandr --output eDP1 --primary --auto --output DP1-1
--off; xrandr --output eDP1 --primary --auto --output DP1-1 --auto --left-of
eDP1`
* put it back to dock
* observe the problem (blinking caps lock led, system does not react anymore)

--> panicked

After bootup into icewm the two displays were configured to clone with same
resolution. I did not tweak that and did not call `xrandr` in the process at
all and could still reproduce the same kernel panic so the issue is not related
to the `xrandr` call.

## E4

* put system to STR in the docking station with `sudo systemctl suspend`
* wait for system to be in STR
* remove from dock
* start
* put it back to dock
* observe the problem (blinking caps lock led, system does not react anymore)

--> panicked

## E5

* put system to STR in the docking station with `sudo systemctl suspend`
* wait for system to be in STR
* disconnected external display
* start
* reconnected external display
* observe the problem (blinking caps lock led, system does not react anymore)

--> panicked


## E6

* disconnected external display
* wait 2 seconds
* reconnected external display
* observe the problem (blinking caps lock led, system does not react anymore)

--> does not panic, so I need the STR step


back to E5 but because in icewm there is automatic detection I can stay on a
text terminal and record at least some information.