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MageSlayer

Member

Registered: 2022-04-05

Posts: 3

Xfce4 + LightDm + ~/.Xresources -> fails to apply

Hi all

I am trying to make Xfce4 honour my custom DPI for my laptop.
It does not get it automatically since Nvidia + Prime seem to fail to publish it properly.

I managed to initialize Prime in following script called init_prime.sh

===============================================
...

# set dpi for fonts at login screen
xrdb -merge /etc/X11/Xresources/* >>$LOG 2>&1

# NVidia prime init for login screen
xrandr --setprovideroutputsource modesetting NVIDIA-0 >>$LOG 2>&1
xrandr --auto >>$LOG 2>&1

================================================

My /etc/X11/Xresource/xfont file contains just:
Xft.dpi: 266

denis@devuan-nb:~$ cat ~/.Xresources
Xft.dpi: 266

So far so good. LightDm now starts fine with proper font size.

However after logging into Xfce4 session my DPI gets overwritten somewhere.
Even though I try to change it back in ~/.config/xfce4/xinitrc. See below.

#!/bin/bash

LOG=~/autostart.log

echo "=====================" >>$LOG 2>&1
date >>$LOG 2>&1

echo "Setting DPI" >>$LOG 2>&1
xrandr --dpi 266 >>$LOG 2>&1

echo "Merging ~/.Xresources" >>$LOG 2>&1
xrdb -merge ~/.Xresources >>$LOG 2>&1

#xset b off
echo "Starting yeahconsole" >>$LOG 2>&1
DISPLAY=:0 yeahconsole >>$LOG 2>&1 &

# sync clipboards
echo "Starting clipboard autosync" >>$LOG 2>&1
autocutsel -fork -selection CLIPBOARD
autocutsel -fork -selection PRIMARY

echo "xdpyinfo" >> $LOG
xdpyinfo | grep -B 2 resolution >>$LOG 2>&1

# set dpi for fonts at login screen
echo "xrdb" >> $LOG
xrdb -query | grep dpi >>$LOG 2>&1

echo "Other xfce4 init" >>$LOG 2>&1
. /etc/xdg/xfce4/xinitrc
===================================================

Log shows DPI equals to 266 before ". /etc/xdg/xfce4/xinitrc" line.

However after session starts:
denis@devuan-nb:~$ xrdb -query |grep dp
[empty]

denis@devuan-nb:~$ xdpyinfo | grep -B 2 resolution
screen #0:
  dimensions:    3840x2400 pixels (1016x635 millimeters)
  resolution:    96x96 dots per inch

denis@devuan-nb:~$ sudo apt policy xfce4
xfce4:
  Installed: 4.16
  Candidate: 4.16
  Version table:
*** 4.16 500
        500 http://deb.devuan.org/merged chimaera/main amd64 Packages
        100 /var/lib/dpkg/status

Any help?

BR,
Denis

Last edited by MageSlayer (2022-04-05 10:54:05)

ToZ

Administrator

From: Canada

Registered: 2011-06-02

Posts: 11,485

Re: Xfce4 + LightDm + ~/.Xresources -> fails to apply

Hello and welcome.

xfsettingsd will be overwritting that. Xfce sets the DPI at Settings Manager > Appearance > Fonts. Is it enabled there and what is set to?

You can try disabling (unchecking) the value to see if it uses the one that you specify, or try changing it to 266 to see if that helps.

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MageSlayer

Member

Registered: 2022-04-05

Posts: 3

Re: Xfce4 + LightDm + ~/.Xresources -> fails to apply

Yes. I found that option. It corresponds to ~/.Xresources, right?
However, it does not help. Windows are still scaled incorrectly, icons are tiny.

Is it also the cause for overriding xdpyinfo?

ToZ

Administrator

From: Canada

Registered: 2011-06-02

Posts: 11,485

Re: Xfce4 + LightDm + ~/.Xresources -> fails to apply

A bit of a rabbit's hole here.

Start with https://bugzilla.xfce.org/show_bug.cgi?id=10633 and https://bugzilla.xfce.org/show_bug.cgi?id=14236. A dpi value of 96 is hardcoded into xfce4-settings. So when xfsettingsd starts up, it overwrites that value.

This leads to this report and merge request which was approved and pushed in June of 2020 to the 4.16 tree. However, it was reverted 2 months later (https://git.xfce.org/xfce/xfce4-setting … d508c3bf66. Unfortunately, the reference points to an incorrect bug, so its unclear as to why it was reverted.

You may want to create a new bug report asking why it was reverted.

As a workaround, you could also try creating an application autostart entry that runs something like this:

bash -c "sleep 3 && xrandr --dpi 266"

...adjust the sleep value to a value that will execute after xfsettingsd starts.

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MageSlayer

Member

Registered: 2022-04-05

Posts: 3

Re: Xfce4 + LightDm + ~/.Xresources -> fails to apply

https://gitlab.xfce.org/xfce/xfce4-sett … issues/357 created.

nick87720z

Member

Registered: 2018-01-07

Posts: 24

Re: Xfce4 + LightDm + ~/.Xresources -> fails to apply

Unfortunately, the reference points to an incorrect bug, so its unclear as to why it was reverted

I got this issue, which seems to be fully related to described behaviour:
https://gitlab.xfce.org/xfce/xfce4-sett … issues/190

It's just made by different author than reverting commit.

For proposal - I have better idea, preserving autodetected DPI before modification and restoring after:
https://gitlab.xfce.org/xfce/xfce4-sett … note_61438