Created attachment 166682 [details] Screenshot #1 It started with latest update 23.08.5-1 -> 24.02.0-1 It seems to only afftect Falkon: kate, kconsole and kdesettings are unaffected. STEPS TO REPRODUCE 1. Open a webpage with text (I used www.kde.org and bugs.kde.org in my screenshots) OBSERVED RESULT Text is displayed with chunky fonts. EXPECTED RESULT Text is displayed smoothly. SOFTWARE/OS VERSIONS Kernel Version : 6.7.8.zen1-1 Plasma Version : 6.0.1-1 KDE Version : 24.02.0-1 Frameworks Version : 5.115.0-1 Qt5 Version : 5.15.12+kde+r10-1 Qt6 Version : 6.6.2-4 Wayland Version : 1.22.0-1 XOrg/Wayland Version : 23.2.4-2 Mesa Version : 1:24.0.2-2 LibVA Version : 2.20.0-1 VDPAU Version : 1.5-2 ADDITIONAL INFORMATION My setup has 2 screens: Main: 3840x2160 scaled at 150% Secondary: 1920x1080 scaled at 100%. It doesn't change if I move falkon window to the secondary screen. Falkon has hardware acceleration enabled.
Created attachment 166683 [details] Screenshot #2
I set it as major as the problem is affecting a major feature of the program: displaying text.
I have also ugly fonts in Falkon when i use Wayland with Kde6 but when i start my sessions with X11 i have a nice fonts. It's only the font in the website the problem. i don't have the problem with Firefox. The problem could perhaps also be related to qtwebengine6. I have Mesa Intel® HD Graphics 520
No other browser I have (chromium, vivaldi, firefox) has this problem. okular (both text and PDF files) hasn't got this problem. kate hasn't got this problen. Falkon shows the problem on all websites I have visited so far. **It only happens with screen scaling other than 100%.**
FWIM: $ vainfo Trying display: wayland vainfo: VA-API version: 1.20 (libva 2.20.1) vainfo: Driver version: Intel iHD driver for Intel(R) Gen Graphics - 24.1.3 () $ vdpauinfo display: :1 screen: 0 API version: 1 Information string: OpenGL/VAAPI backend for VDPAU
Duplicate of bug 483192. Seems likely related to upstream: https://bugreports.qt.io/browse/QTBUG-113574 Setting `QT_SCALE_FACTOR_ROUNDING_POLICY=RoundPreferFloor` seems to be a temporary workaround. *** This bug has been marked as a duplicate of bug 483192 ***