Arch Linux

ivladak

Member

Registered: 2018-06-03

Posts: 2

Suspend doesn't work after turning HDMI on and off again with xrandr

I am running Arch on a MacBookPro11,x. After recent kernel updates (I believe), suspend upon lid closing started working normally again after some issues I'd been seeing for a while. Except this one case.

My window manager is dwm. To use an external monitor, I connect it via an HDMI cable and issue

xrandr --output HDMI-3 --mode 1920x1080  --output eDP-1 --auto --below HDMI-3

Then I do my thing using both monitors.  When I'm finished, I turn it off with

xrandr --output eDP-1 --auto --primary --output HDMI-3 --off

If I close the lid now, nothing happens. (I'm pretty sure suspend stops working at the moment I enable HDMI output, though I haven't really checked. The point is it doesn't work even after disabling it.)

I see the lid events in journalctl:

May 11 22:34:29 archbook systemd-logind[752]: Lid closed.
May 11 22:34:32 archbook systemd-logind[752]: Lid opened.

I don't see anything related to either lid or suspend in dmesg.

No events except opening the lid are supposed to wake the laptop up:

$ cat /proc/acpi/wakeup  | grep enabled
LID0      S4    *enabled   platform:PNP0C0D:00

What am I doing wrong?