GTK scaling detection is broken - Version 1.73.101

Browser Support Desktop Support
1

Description of the issue:
GTK scaling detection is broken and UI is giant (twice as big as it should be)

The HiDPi scaling worked fine prior to v1.73.91

How can this issue be reproduced?
Use a Linux X11 session, then set: Xft.dpi: 192, GDK_SCALE=2, GDK_DPI_SCALE=0.5

Expected result: Proper UI scaling

NOTE: All other Linux apps are respecting Xft.dpi: 192, GDK_SCALE=2, GDK_DPI_SCALE=0.5 for HiDPI scaling

(updated 12/17/24) Brave Version: 1.73.101

2

Please update your Original Post, above, to include:

  • That you have updated Brave Browser to the latest version
  • Among the results of that update - list the improvements
  • Among the results of that update - list the no improvements
  • List other applications’ windows wherein GTK scaling detection is broken
  • List other applications’ windows wherein GTK scaling detection is not broken
  • Tests that you conducted with all extensions disabled
  • Tests that you conducted with one-at-a-time extension enabled
  • Tests that you conducted with a sequence of extensions enabled
  • Graphics Acceleration status

You get the idea: What works and what does not work. So where, exactly does your issue stand out? Is Brave Browser the only suspect?

Routine maintenance:

Be Prepared

Clear cookies, cache, history, etc.

In a Brave Browser New Window, go to:

brave://settings/clearBrowserData

Select the Advanced tab

Set Time range to “All time”

ENABLE everything except:

  • Passwords and other sign-in data

(Myself, I would NOT make that exception)
(because I would have a backup prepared.)
(In other words, be prepared.)

Click on the “Clear data” button

3

i updated the initial post with more details.

4

Thanks for the extra info. I do not know who is the resident Linux OS wiz, but @Saoiray might know.

GitHub > Brave Browser issues

https://github.com/brave/brave-browser/issues?q=is%3Aissue+scaling+detection+sort%3Aupdated-desc

5

I am having the same issue with the latest update (1.73.101).

Attaching a picture of the problem.

brave
brave1920×1200 284 KB

6

I haven’t found a solution, but I have found a temporary workaround. If you modify the .desktop file by changing the Exec lines adding GDK_SCALE=1 to the command, it scales Brave correctly. See code below for complete details.

[Desktop Entry]
Version=1.0
Name=Brave Web Browser
GenericName=Web Browser
Comment=Access the Internet
Exec=bash -c "GDK_SCALE=1 /usr/bin/brave-browser-stable %U"
StartupNotify=true
Terminal=false
Icon=brave-browser
Type=Application
Categories=Network;WebBrowser;
MimeType=application/pdf;application/rdf+xml;application/rss+xml;application/xhtml+xml;application/xhtml_xml;application/xml;image/gif;image/jpeg;image/png;image/webp;text/html;text/xml;x-scheme-handler/http;x-scheme-handler/https;
Actions=new-window;new-private-window;

[Desktop Action new-window]
Name=New Window
Exec=bash -c "GDK_SCALE=1 /usr/bin/brave-browser-stable"

[Desktop Action new-private-window]
Name=New Incognito Window
Exec=bash -c "GDK_SCALE=1 /usr/bin/brave-browser-stable --incognito"