Your message dated Tue, 23 May 2017 13:37:21 +0300
with message-id <[email protected]>
and subject line Bug#861251: telegram-desktop: please unset QT_QPA_PLATFORMTHEME
has caused the Debian Bug report #861251,
regarding telegram-desktop: please unset QT_QPA_PLATFORMTHEME
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861251: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=861251
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--- Begin Message ---
Source: telegram-desktop
Version: 1.0.14-1
Severity: wishlist
Tags: patch
Hi Maintainer
While trying to troubleshoot telegram-desktop hanging on startup in
Ubuntu [1], I found that with ubuntu-mate-default-settings installed,
QT_QPA_PLATFORMTHEME is set to gtk2 and similarly, with appmenu-qt5
installed, QT_QPA_PLATFORMTHEME is set to appmenu-qt5.
I was able to reproduce the problem with either of these packages
installed. I was able to work around the problem by starting
telegram-desktop from a terminal as follows:
$ QT_QPA_PLATFORMTHEME= telegram-desktop
I found the following in
debian/patches/Avoid-depending-on-static-libraries.patch:
--- a/Telegram/SourceFiles/main.cpp
+++ b/Telegram/SourceFiles/main.cpp
...
+ // without this Telegram doesn't start on Ubuntu 17.04 due GTK errors
+ setenv("QT_STYLE_OVERRIDE", "qwerty", false);
Adding the following line below the 'setenv("QT_STYLE_OVERRIDE"' line
worked for me:
+ unsetenv("QT_QPA_PLATFORMTHEME");
For which Ubuntu desktop environment did you need to setenv
QT_STYLE_OVERRIDE? It does not seem to be set in Unity or MATE, so
removing that line from the patch had no effect for me.
Regards
Graham
[1] https://bugs.launchpad.net/ubuntu/+source/telegram-desktop/+bug/1680943
--- End Message ---
--- Begin Message ---
Version: 1.1.0-1
Now QT_QPA_PLATFORMTHEME environment variable is automatically unset at
start up so the bug should be closed. But I think a real solution is
still needed.
--- End Message ---
