Comment # 42 on bug 1193397 from Kourosh P.

(In reply to Felix Miata from comment #41)
> (In reply to Kourosh P. from comment #40)
> > I have reported this matter at the following link:
> > https://gitlab.freedesktop.org/drm/amd/-/issues/1952
> 
> I just made the following addition there:
> 
> # inxi -S
> System:
>   Host: ab250 Kernel: 5.18.19-200.fc36.x86_64 arch: x86_64 bits: 64
>     Desktop: Trinity v: R14.0.12 Distro: Fedora release 36 (Thirty Six)
> #
> 
> If I keep my second display's cable disconnected, I get this:
> # grep onnec /var/log/Xorg.0.log
> [     5.313] (II) modeset(0): Output DP-1 connected
> [     5.313] (II) modeset(0): Output HDMI-1 disconnected
> [     5.313] (II) modeset(0): Output HDMI-2 disconnected
> [     5.313] (II) modeset(0): Output HDMI-3 disconnected
> [     5.313] (II) modeset(0): Output DP-2 disconnected
> #
> Or this:
> # grep onnec /var/log/Xorg.0.log
> [     5.544] (II) modeset(0): Output DP-1 disconnected
> [     5.544] (II) modeset(0): Output HDMI-1 disconnected
> [     5.544] (II) modeset(0): Output HDMI-2 connected
> [     5.544] (II) modeset(0): Output HDMI-3 disconnected
> [     5.544] (II) modeset(0): Output DP-2 disconnected
> #
> 
> It may surprise many that if I keep my second display's signal cable
> connected
> from the PC, but with it powered off, I get this on booting instead:
> # grep onnec /var/log/Xorg.0.log
> [     5.412] (II) modeset(0): Output DP-1 connected
> [     5.412] (II) modeset(0): Output HDMI-1 disconnected
> [     5.412] (II) modeset(0): Output HDMI-2 connected
> [     5.412] (II) modeset(0): Output HDMI-3 disconnected
> [     5.412] (II) modeset(0): Output DP-2 disconnected
> #
> Or this:
> # grep onnec /var/log/Xorg.0.log
> [     5.451] (II) modeset(0): Output DP-1 connected
> [     5.451] (II) modeset(0): Output HDMI-1 disconnected
> [     5.451] (II) modeset(0): Output HDMI-2 connected
> [     5.451] (II) modeset(0): Output HDMI-3 disconnected
> [     5.451] (II) modeset(0): Output DP-2 disconnected
> #
> 
> So, at "connection" time, the secondary display isn't providing any
> information
> about it's capability, only the cable connection is "reporting" something is
> connected. Some may want to rethink their definition of "connected", and not
> boot
> with an external display attached but un-powered.[/quote]
> 
> It would be nice to know what MX Linux is doing that it doesn't present the
> problem.

Thank you.