[Bug 1205585] [Build 20221110] Broken font rendering in installations over VNC
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https://bugzilla.suse.com/show_bug.cgi?id=1205585
https://bugzilla.suse.com/show_bug.cgi?id=1205585#c25
--- Comment #25 from Fabian Vogt
My guess is that with Xvnc there's a different selection of X11 visuals available and the installer selects one which does not quite work with the font rendering method. It might be missing alpha for instance or somehow blend it incorrectly.
I debugged this on the train and found the root cause. It's a bad conversion between QRgb and QRgba64 types in a gamma correct blending function. I filed a detailed report upstream: https://bugreports.qt.io/browse/QTBUG-109169 It contains details on the debugging procedure and the root cause itself as well as a (surprisingly small -2char) patch. I'll try to get that upstream as well as submit it to TW soon. I wonder whether it wouldn't be useful to drop the -depth 16 switch in the Xvnc invocation. What's the reason for that? -- You are receiving this mail because: You are on the CC list for the bug.
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