Not working with HiDPI

[emacs-eaf]

Not working with HiDPI

[xhcoding]

I have the same issue on manjaro kde 4k screen, my system scale is 2. QT_SCREEN_SCALE_FACTORS=VGA-1=2; is set as environment variable, so EAF program has double scaling.

I remove the relevant environment variables from the process-environment to disable QT scaling, let EAF qt program follow the system scale.

(require 'seq)

(setq process-environment (seq-filter
 (lambda(var)
   (and (not (string-match-p "QT_SCALE_FACTOR" var))
        (not (string-match-p "QT_SCREEN_SCALE_FACTOR" var)))) process-environment))

(eaf-setq eaf-browser-default-zoom  "2") 

[manateelazycat]

I haven't HiDPI monitor, sorry i can't test it. ;(

[yangsheng6810]

Shall we keep this issue open while I spend some time fixing the issue? It is also OK to close it and I will make a PR when I have a reasonably mature patch ready.

[manateelazycat]

PR are welcome!

[stardiviner]

Is there a solution for this? I installed Arch Linux on MacBook Pro with a Retina screen. The position of EAF displayed is bigger than Emacs window.

I can help for testing.

[manateelazycat]

I haven't HiDPI screen.

I think code should get device scale factor, then adjust render x, y, width, height.

Sorry, I know how to fix this issue, but i haven't HiDPI device now.

[stardiviner]

Maybe I can provide remote access for you. WDYT? Even not now, my home network is broken, I need to wait China disease gone. Ask engineer to setup my home network.

[manateelazycat]

Thank you, it need much time.

[stardiviner]

Ok, I see. Thanks for considering that.

[stardiviner]

This is very great, It works for me too. Thanks @xhcoding !!

@manateelazycat Can this workaround be in EAF source code?