Wow, thanks for responding so quickly! That's great to hear. FWIW, to this day, Ubuntu MATE 23.04 is still using the gtk2 style plugin (export QT_QPA_PLATFORMTHEME=gtk2 in /etc/profile.d) so indeterminate progress bars have been broken in Ubuntu MATE for years. I think there would be value in at least patching this in Ubuntu's build or something...
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to qtbase-opensource-src in Ubuntu. https://bugs.launchpad.net/bugs/1906138 Title: Indeterminate Qt progress bars don't display properly in 20.04 Status in qtbase-opensource-src package in Ubuntu: New Status in qtstyleplugins-src package in Ubuntu: New Bug description: In Ubuntu MATE 20.04, a Qt program with an indeterminate progress bar (meaning its minimum and maximum values have both been set to zero) does not display properly. It is supposed to animate in a way that shows that something is happening with an unknown time remaining. Instead, it sits still with its progress bar showing approximately 25 to 30% progress. To test this, make a simple Qt program with a QProgressBar in the main window, and add these lines to the constructor of the main window: ui->progressBar->setMinimum(0); ui->progressBar->setMaximum(0); This problem is not present in standard Ubuntu 20.04. Standard Ubuntu correctly animates the indeterminate progress bar. It's unclear to me which package is at fault, but it seems to be something specific to Ubuntu MATE because standard Ubuntu 20.04 doesn't have this problem. Ubuntu MATE 18.04 also has this problem with Qt 5. With Qt 4 it doesn't have this problem. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1906138/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
