One of my terminals has 3 monitors.
PC has 3 hdmi ports built in.
I have the problem that the monitors wont stay dim when set in power-settings.
Powers settings uses xset to dim or switch off the monitors afte a period of time, so I had to check if xset is the culprit, and indeed it is.
As a test, running
sleep 5 ; xset dpms force off
switches all three monitors off, but after a few seconds the right hand side one switches on again, and that wakes up the rest.
Is there any way to resolve this ? as I cannot figure out why xset allows a wake up signal other than keyboard or mouse, which must be the problem.
How can I force xset to only react to keyboard and mouse for wakeup.
$ cat /etc/*relea*
NAME="MX"
VERSION="21.3_ahs (Wildflower)"
ID="mx"
VERSION_ID="21.3"
PRETTY_NAME="MX 21.3_ahs (Wildflower)"
ANSI_COLOR="0;34"
HOME_URL="https://mxlinux.org"
BUG_REPORT_URL="https://mxlinux.org"
PRETTY_NAME="MX 21.3 Wildflower"
DISTRIB_ID=MX
DISTRIB_RELEASE=21.3
DISTRIB_CODENAME="Wildflower"
DISTRIB_DESCRIPTION="MX 21.3 Wildflower"
PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
NAME="Debian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
VERSION_CODENAME=bullseye
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"
xset -q
xset q
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: 20
auto repeating keys: 00ffffffdffffbbf
fadfffefffedffff
9fffffffffffffff
fff7ffffffffffff
bell percent: 50 bell pitch: 400 bell duration: 100
Pointer Control:
acceleration: 2/1 threshold: 4
Screen Saver:
prefer blanking: yes allow exposures: yes
timeout: 0 cycle: 0
Colors:
default colormap: 0x20 BlackPixel: 0x0 WhitePixel: 0xffffff
Font Path:
/usr/share/fonts/X11/misc,/usr/share/fonts/X11/100dpi/:unscaled,/usr/share/fonts/X11/75dpi/:unscaled,/usr/share/fonts/X11/Type1,/usr/share/fonts/X11/100dpi,/usr/share/fonts/X11/75dpi,built-ins
DPMS (Energy Star):
Standby: 7200 Suspend: 7200 Off: 7200
DPMS is Disabled