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.
Regards,
--
Nicolas George
#!/bin/zsh
if [[ $(</proc/$PPID/cmdline) != *wrapper*greeter* ]] ; then
print -u2 "Must be started from greeter wrapper"
exit 1
fi
restart=false
while true ; do
xrandr=$(xrandr --current)
xrandr=(${(f)xrandr})
xrandr=(${(M)xrandr:#* connected *})
if [[ $#xrandr != 0 ]] ; then
break
fi
restart=true
xev -root -event randr |
while read -r ev det ; do
if [[ $ev == RRScreenChangeNotify ]] ; then
break
fi
done
done
if [[ $restart == true ]] ; then
kill $PPID
fi
