so i spent a few days lopening and closing the lids of a few laptops,
plugging and unplugging external screens in, plugging and unplugging
ac power and doing lots of combinations of these. this led to a whole
slew of interrealted issues that were pretty hard to detangle into
just single issues, so this is all one blob.
this fixes:
1. if a lid close gets a monitor unplug from x or e's randr wants to
unplug then this lead to slow unsuspend or lid open times as e was
reconfirguring the screens entireluy on lid open. dont do that. just
keep things as is, unless we have an external display, then reconfigure.
2. we had 2 systems monitoring for a wake. a poller and a systemd
event. this was redundant and lead to interesting things in the debug
output, so clean that up and on systemd systsems use the systemd wake
events
3. some systems dont shut down their screens on lid close, so they
stay open until screensaver timeouts kick in. bad. so also force the
screen to go off on lid close (if the lid screen is the only one we
have).
4. x seems to have a bug where if you force dpms off etc. to turn the
screen on, it still thinks it's of and wont dpms off again after that
until you eother give some input to have the wake event make the dpms
system in x think its now time to go on, or you toggle dpms on and
off, so i found toggling tricks x into thinking the right thing.
this makes some debugging also be consistent with printfs.
all in all i have a pretty well supported laptop doing swimmingly with
e and a not so well designed (acpi dsdt - missing many events like
acpi battery ones, ac power change acpi events, missing logic to power
off a closed screen in firmware or hardware and leaving it to sw...
not this laptop has a tocuh panel and extra fun points awarded since
the touch panel doesnt shut off on lid close... AND it reprots touch
events when it closes as it touches the keys/case... hooray! that has
another work-around local to my system, as efl has no mechanism to do
this).
@fix
Carsten Haitzler
5a1e9a995c