08-22-2023, 11:05 PM
Thanks for pointing me in the right direction! Yeah, LXQT is running under X. I had to script a loop to repeatedly save that output to a log, since the remote SSH session couldn't talk to the main X session, but what I found is:
I also verified that the timeouts, lock screen etc. do still work correctly under Wayland on my device, so that's good to know!
That gives me a couple of approaches (workarounds, or manually installing the newer version, etc.) to prevent the problem of it turning off when I don't want it to. (I really do not miss all that messing with X configuration back in the old days, but hey, you gotta do what works.)
Then I need to figure out how to get it to turn back on. If LxQt's own power management works right (except for the dpms issue), then problem solved. It not, I figure I'll experiment with blank, standby, and suspend to see which ones (if any) the display recovers from.
--------------------
For the record: Full output of xset -q after the display turns off:
- DPMS is enabled, with the standby, suspend and off timeouts at 600 -- which it shouldn't be, because LXQt is set to not standby or suspend, but....
- There is a bug in LXQT's power management where it doesn't always update DPMS's settings.
- DPMS sees the monitor as off.
I also verified that the timeouts, lock screen etc. do still work correctly under Wayland on my device, so that's good to know!
That gives me a couple of approaches (workarounds, or manually installing the newer version, etc.) to prevent the problem of it turning off when I don't want it to. (I really do not miss all that messing with X configuration back in the old days, but hey, you gotta do what works.)
Then I need to figure out how to get it to turn back on. If LxQt's own power management works right (except for the dpms issue), then problem solved. It not, I figure I'll experiment with blank, standby, and suspend to see which ones (if any) the display recovers from.
--------------------
For the record: Full output of xset -q after the display turns off:
Code:
Keyboard Control:
auto repeat: on key click percent: 0 LED mask: 00000000
XKB indicators:
00: Caps Lock: off 01: Num Lock: off 02: Scroll Lock: off
03: Compose: off 04: Kana: off 05: Sleep: off
06: Suspend: off 07: Mute: off 08: Misc: off
09: Mail: off 10: Charging: off 11: Shift Lock: off
12: Group 2: off 13: Mouse Keys: off
auto repeat delay: 500 repeat rate: 33
auto repeating keys: 00ffffffdffffbbf
fadfffefffedffff
9fffffffffffffff
fff7ffffffffffff
bell percent: 0 bell pitch: 400 bell duration: 100
Pointer Control:
acceleration: 2/1 threshold: 4
Screen Saver:
prefer blanking: yes allow exposures: yes
timeout: 600 cycle: 600
Colors:
default colormap: 0x20 BlackPixel: 0x0 WhitePixel: 0xffffff
Font Path:
built-ins
DPMS (Display Power Management Signaling):
Standby: 600 Suspend: 600 Off: 600
DPMS is Enabled
Monitor is Off
