Details
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Type:
Bug
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Status: Closed
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Priority:
P3: Somewhat important
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Resolution: Invalid
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Affects Version/s: 5.15.2
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Fix Version/s: None
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Component/s: QPA: X11/XCB, Widgets: Styles
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Labels:None
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Platform/s:
Linux/X11
Description
When the DISPLAY environment variable and the -display command-line options differ from eachother, the libqgtk3.so platformtheme may crash, like so:
$ DISPLAY= QT_QPA_PLATFORMTHEME=gtk3 qdbusviewer -display :0 (qdbusviewer:8735): Gtk-WARNING **: 12:03:09.078: cannot open display:
This affects the behavior of applications like gpg-agent, that unset the DISPLAY variable, and expect a subprocess to work with just passing the `-display` option. As such, this can also be reproduced with `DISPLAY= QT_QPA_PLATFORMTHEME=gtk3 pinentry-qt --display :0`.
Note that this probably isn't an issue for wayland thanks to the absence of an equivalent -display option. Unless I'm wrong about this, that is...