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Bug #1918

Problem with fractional HiDPI scaling in Windows

Added by Cyberhead about 1 year ago. Updated about 1 month ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
Quassel GUI (Qt)
Target version:
-
Start date:
09/09/2025
Due date:
% Done:

0%

Estimated time:
Version:
0.14.0
OS:
Windows

Description

On a Windows 11 system running Quassel Client v0.14.0 at 150% scaling, the UI appears disproportionately oversized compared to all the other programs in the system.

This is a known bug with Qt that can be solved by setting the global environment variable 

QT_SCALE_FACTOR_ROUNDING_POLICY=PassThrough
in system settings, which isn't exceptionally difficult, however, it would make sense to make necessary changes in the source code for convenience reasons.

History

#1 Updated by giced42245 4 months ago

Cyberhead wrote:

On a Windows 11 system running Quassel Client v0.14.0 at 150% scaling, the UI appears disproportionately oversized compared to all the other programs in the system.

This is a known bug with Qt that can be solved by setting the global environment variable [...] in system settings, which isn't exceptionally difficult, however, it would make sense to make necessary changes in the source code for convenience reasons. https://www.pike-pass.com

#2 Updated by liotrio 2 months ago

I ran into the exact same issue on Windows 11 with 150% scaling. Setting QApplication::setHighDpiScaleFactorRoundingPolicy(Qt::HighDpiScaleFactorRoundingPolicy::PassThrough) in main.cpp before initializing QApplication fixes it directly fnf game in the codebase.

#3 Updated by bubblyeducate about 1 month ago

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