xrandr --scale-from

[chscf]

Hello!

I got a Surface Pro 8 along with a (rather old) HP USB Dock with DisplayLink graphics. I get graphics output on the external display connected via this dock, but I'm not able to scale the output from the Surface's primary display (which has a higher resolution than the external display). The output on the external display is simply an unscaled copy of the primary display, and therefore cropped.

I call xrandr like this:

xrandr --output DVI-I-1-1 --auto --same-as eDP1 --scale-from 2880x1920

where DVI-I-1-1 is the displaylink output and eDP1 the internal display. On non-displaylink external displays this works fine.

All involved software components are very recent (kernel, evdi, displaylink manager, xorg-server, etc.)

So my question is if this is known to not work, or if it might be some misconfiguration on my side.

Thanks and best regards, Christian

[chscf]

Hi, is there anybody who can confirm the behaviour I've described? Or does anyone have any information on this?

Thanks and best regards, Christian

[theophanevie]

I got the same issue !