https://bugs.kde.org/show_bug.cgi?id=471443
Bug ID: 471443
Summary: Low-res Images in Qt Apps when using fractional
scaling
Classification: I don't know
Product: kde
Version: unspecified
Platform: NixOS
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: unassigned-b...@kde.org
Reporter: bright.joy7...@mstaff.dev
Target Milestone: ---
Created attachment 159897
--> https://bugs.kde.org/attachment.cgi?id=159897&action=edit
Current pixelated scaling
SUMMARY
***
Icons in the Telegram Desktop App are blurry or pixelated when setting the
global scaling to e.g. 150% in the display settings.
***
STEPS TO REPRODUCE
1. Set global scaling to 150% in display settings
2. reboot
3. open Telegram and closely look at any icon
OBSERVED RESULT
* rounded corners of profile pictures look pixelated
* icons and emojis look pixelated
EXPECTED RESULT
* rounded corners actually round
* high-res version of icons and emojis used
SOFTWARE/OS VERSIONS
NixOS: 23.11
KDE Plasma Version: 5.27.6
KDE Frameworks Version: 5.107.0
Qt Version: 5.15.9
Kernel-Version: 6.3.6 (64-bit)
Graphics: X11
ADDITIONAL INFORMATION
* Telegram also had display scaling set to 225% by default (in the
in-app-settings) after switching to global scaling of 150%
* Other users have also reported this to the Telegram Desktop Github issue
tracker as well as the Qt issue tracker with both saying that the issue lies
with KDE
* some users have reported that this happens only on the official version of
Telegram for their respective distro, not on snaps
* quote from Telegram Desktop issue tracker: "According to
https://doc.qt.io/qt-6/highdpi.html, QT_SCREEN_SCALE_FACTORS is in line with
debug-only environment variables KDE shouldn't set."
--
You are receiving this mail because:
You are watching all bug changes.
