Manual dpi control in vm's for HIDPI diplays

[R.B.]

Hello,

For the people who want to use a HIDPI display, or have one on their
laptop, Here's an easy way to get your vm's up to scale while issue
#1951 is open ;-)

Settings that I use on my machine with 3.2rc1:
gsettings set org.gnome.desktop.interface scaling-factor 2
gsettings set org.gnome.desktop.interface text-scaling-factor 0.75

You could run it through qvm-run from dom0 for all your vm's.

Note that for some reason it won't affect templates. The
(gnome-)terminal for instance remains the same size and scale.

For reference: https://github.com/QubesOS/qubes-issues/issues/1951

Enjoy.

Regards,

RB

[Andrew David Wong]

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Thanks! I've added your message to the issue:

https://github.com/QubesOS/qubes-issues/issues/1951#issuecomment-
230380004

- --
Andrew David Wong (Axon)
Community Manager, Qubes OS
https://www.qubes-os.org
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[george...@gmail.com]

Dude. This is awesome for the AppVMs. My eyes are no longer bleeding from reading standard print size font on a 15" 4k screen nor bleeding from scaling in xrandr.

[vincent.ma...@gmail.com]

Where do I need to type these commands into ?
I dont know where, the terminal is not doing anything?

[Connor Page]

this is not a universal approach but should work fine for gnome apps. you should type them in terminal applications in each vm.

a more comprehensive approach to cover all bases is to set proper dpi for X server, Xft, gsettings (if gnome-settings-daemon runs), xsettings (IIRC Debian template needs that), dom0 desktop environment (KDE, Xfce) and use hidpi themes/window decorations.

[Patrick Schleizer]

Did anyone manage to get HiDPI working in Qubes R4?


https://groups.google.com/forum/#!msg/qubes-users/GQOLttJeJTg/hubZ7gX8AwAJ

https://github.com/QubesOS/qubes-issues/issues/1951

R.B.:

I tried this in a Qubes R4 AppVM. However it didn't have any effect.

[subjunct...@gmail.com]

Since I switched to the Fedora-26 template (still on R3.2) the scaling-factor and text-scaling-factor has no effect anymore.

The only way I found to get a reasonable view is to change the default 96 dpi setting of Xft.dpi in /etc/X11/Xresources (in the TemplateVM).

Regards,
Markus