On 2026-02-13, Eyal Lebedinsky <[email protected]> wrote: > On 14/2/26 00:26, Nicolas George wrote: >> Eyal Lebedinsky (HE12026-02-05): >>> Me too. I use fedora and have the same issue. Actually, using a KVM to >>> switch to another machine >>> then back does the same thing (dark screen, monitor says no HDMI signal). I >>> ended up with the same solution (xrandr). >>> BTW, the text consoles (ttyN) are visible, only the X11 one (tty1 for me) >>> is blank. >>> >>> For me this started a few months ago, it was working fine until then. >>> >>> I agree that X11 seems to think all is well. >>> >>> I suspected it is the intel embedded GPU that is at fault, the vibe on the >>> 'net is that this driver is in bad shape. >>> Changing X11 to use modesetting (was intel) did not help. >> >> Thanks for confirming I am not alone having the issue. >> >> I have written the following script (that you can consider public >> domain), to be called from the greeter-wrapper. At first I considered >> calling `xrandr --output $out --primary --auto` but I eventually decided >> to kill the greeter wrapper and cause it to restart. Among other things >> because greeter-setup-script creates a background image at the >> resolution of the screen. > > Probably similar to my script (I do not use/understand zsh). > However, how do you launch it if the screen goes blank while being used, like > unplug/plug the monitor? > > My script is similar but launched from cli. > I need to find a way to assign a "hot key" to launch the script blind, > regardless of the program that has focus.
I didn't notice this thread. I use lightdm and sometimes my screen powers off completely rather than going into power-saving mode. I then have to unplug the monitor for 30 seconds or so to get it working again. I always thought it was a BIOS/ACPI bug on my old ACER X1301.
