Ubuntu
ubuntu-mate-settings package

qt_auto_screen_scale_factor incorrectly set in /etc/profile.d/mate-qt.sh on Ubuntu 17.10

Bug #1709010 reported by cserby on 2017-08-07

This bug report is a duplicate of: Bug #1714581: qt apps look bad. Edit Remove

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	ubuntu-mate-settings (Ubuntu)	Incomplete	Undecided	Unassigned

Bug Description

On a fresh Ubuntu Mate 17.10 install, /etc/profile.d/mate-qt.sh sets QT_AUTO_SCREEN_SCALE_FACTOR=1, however Qt 5.7.1 does seem to expect the env variable to be set to "true" instead of "1", thus Qt apps, like vlc and wireshark display with very small UI elements on HighDPI displays.

Martin Wimpress  (flexiondotorg) on 2017-08-14

Changed in ubuntu-mate-settings (Ubuntu):
status:	New → Triaged
importance:	Undecided → Medium
assignee:	nobody → Martin Wimpress (flexiondotorg)
no longer affects:	ubuntu-mate

Revision history for this message

Martin Wimpress  (flexiondotorg) wrote on 2017-08-14:

If I set QT_AUTO_SCREEN_SCALE_FACTOR=true then on a HiDPI display VLC is never scaled. I only see Qt scaling work when QT_AUTO_SCREEN_SCALE_FACTOR=1 is set, as described here:

* http://doc.qt.io/qt-5/highdpi.html