Display shutting down after 15 mins

Message

ritzmax72 · Post by **ritzmax72** » Tue Jul 08, 2025 4:27 am

I have a X+dwm+openrc. setup dual monitor. If the system is idle (not pressing any keys on keyboard) for 15 or minutes then the display shuts down. Although this is not huge issue for me it becomes painful while playing Steam games. Since I use bluetooth PS5 controller for gaming, no keys are pressed for 15 and the display shuts down. I then have to manually get up and press random key or press the mouse button. I remember doing some modification on /dev/.... but the issue has come back again. Anyone know definite solution for this?

druggo · Post by **druggo** » Tue Jul 08, 2025 6:35 am

I just simply turn off dpms:

Code: Select all

xset -dpms

ritzmax72 · Post by **ritzmax72** » Tue Jul 08, 2025 11:54 am

druggo wrote:I just simply turn off dpms:
Code: Select all
xset -dpms

This didn't work. I have a desktop computer not a laptop. Is this why it didn't work?

Post by Hu » Tue Jul 08, 2025 1:35 pm

Disabling DPMS is probably the wrong solution anyway, since it would remain disabled until reactivated, which the user would need to do after the game or set a watchdog process to restore later.

The display is probably being put into sleep mode by the screensaver, not by the X server itself. What screensaver/locker do you use?

ritzmax72 · Post by **ritzmax72** » Tue Jul 08, 2025 8:00 pm

Hu wrote:Disabling DPMS is probably the wrong solution anyway, since it would remain disabled until reactivated, which the user would need to do after the game or set a watchdog process to restore later.

The display is probably being put into sleep mode by the screensaver, not by the X server itself. What screensaver/locker do you use?

I don't have any screensaver. As I said it is vanilla dwm. No wallpaper either just black background.

Post by Hu » Tue Jul 08, 2025 9:49 pm

Yes, DWM does not have an integrated screensaver, but it would not be unusual for a DWM user to run a separate screensaver process.

ritzmax72 · Post by **ritzmax72** » Wed Jul 09, 2025 4:13 am

Also, my /sys/class/backlight/ folder is empty. Any recommendation?

Post by **Chiitoo** » Wed Jul 09, 2025 7:24 am

There's also the built-in(?) X screen saver, which can be configured via 'xset s'.

Traditionally, I've had the following two lines include in my '.xinitrc' to stop any blanking/power-offing:

Code: Select all

xset -dpms
xset s off

That written, it seems the default there for the screen saver might be 600 seconds (10 minutes instead of 15), so perhaps it's not that either.

Running

Code: Select all

xset q

will show the current values.

ritzmax72 · Post by **ritzmax72** » Thu Jul 17, 2025 8:09 am

Chiitoo wrote:There's also the built-in(?) X screen saver, which can be configured via 'xset s'.

Traditionally, I've had the following two lines include in my '.xinitrc' to stop any blanking/power-offing:
Code: Select all
xset -dpms
xset s off
That written, it seems the default there for the screen saver might be 600 seconds (10 minutes instead of 15), so perhaps it's not that either.

Running
Code: Select all
xset q
will show the current values.

Thanks it totally worked.

no101 · Post by **no101** » Thu Jul 17, 2025 2:46 pm

Those xset commands can be combined:

Code: Select all

xset s off -dpms