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xorg
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xrandr
xset
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URL:
https://askubuntu.com/q/1128315
Title:
How to standby a monitor using xset in multi monitor setup?
ID:
/2019/03/24/How-to-standby-a-monitor-using-xset-in-multi-monitor-setup_
Created:
March 24, 2019
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September 15, 2024
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For years I had my laptop setup such that when lid is closed laptop would suspend and external monitors would go blank.
For your reason of wanting to watch a video for 90 minutes on external monitor and have laptop screen go blank I changed lid close option to “Do Nothing”:
- Advantage: When I close Laptop lid all Laptop windows go below full screen video.
- Advantage: When I open Laptop lid windows are restored and are no longer below full screen video.
- Disadvantage: I have to make video non-full screen to access top bar menu to select suspend from gear menu.
- Advantage: When system is suspended by menu on external monitor, opening laptop lid still resumes system.
I’m not using DPMS for external monitors but you could check your settings with xset q command:
$ xset q
Keyboard Control:
auto repeat: on key click percent: 0 LED mask: 00000002
XKB indicators:
00: Caps Lock: off 01: Num Lock: on 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: 50 bell pitch: 400 bell duration: 100
Pointer Control:
acceleration: 5/1 threshold: 5
Screen Saver:
prefer blanking: yes allow exposures: yes
timeout: 0 cycle: 0
Colors:
default colormap: 0xb3 BlackPixel: 0x0 WhitePixel: 0xffffff
Font Path:
/usr/share/fonts/X11/misc,/usr/share/fonts/X11/Type1,built-ins
DPMS (Energy Star):
Standby: 0 Suspend: 0 Off: 0
DPMS is Disabled
Notice these lines:
Screen Saver:
prefer blanking: yes
- You would likely want
prefer blanking: no
Also notice these lines:
DPMS (Energy Star):
Standby: 0 Suspend: 0 Off: 0
DPMS is Disabled
- You would likely want
DPMS is enabledto set monitor toStandbywhen desired.
Hopefully other users have used these options and post a detailed answer for you.