SUMMARY STEPS TO REPRODUCE 1. Launch digikam 7.1.0 on 4k display 2. Observe size of splash screen and resulting window 3. Text and graphics do not display correctly, i.e., too small OBSERVED RESULT Window text and graphics too small, should be scaled for 4k display per systemsettings display and monitor EXPECTED RESULT Proper scaling for 4k display of all text and graphics SOFTWARE/OS VERSIONS Linux/KDE Plasma: Linux (x86_64) release 5..4.0-48-generic (available in About System) KDE Plasma Version: 5.20.0 KDE Frameworks Version: 5.75.0 Qt Version: 5.15.0 ADDITIONAL INFORMATION OS: KDE Neon 5.20
This setting definitely works. Tested here under plasma and Windows. A scaling factor must be set in the system settings. Please post the output in a terminal from: echo $QT_SCALE_FACTOR echo $QT_SCREEN_SCALE_FACTORS Maik
You have read that these options in the digiKam system settings require a restart of digiKam? Maik
(In reply to Maik Qualmann from comment #1) > This setting definitely works. Tested here under plasma and Windows. A > scaling factor must be set in the system settings. Please post the output in > a terminal from: > > echo $QT_SCALE_FACTOR > echo $QT_SCREEN_SCALE_FACTORS > > Maik dbergst@zenith:~$ echo $QT_SCALE_FACTOR dbergst@zenith:~$ echo $QT_SCREEN_SCALE_FACTORS DisplayPort-0=2;HDMI-A-0=2;DVI-D-0=2;
(In reply to Maik Qualmann from comment #2) > You have read that these options in the digiKam system settings require a > restart of digiKam? > > Maik I was unable to locate these options in the digikam system settings.
The scaling factors look good. Do you use the AppImage or Flatpak? Maik
HiDPI support must first be activated in digiKam. Under digiKam Settings-> Miscellaneous-> System. Maik
Ah, now I see. The Miscellaneous Settings --> System has two settings that now have to be enabled, i.e., Use high DPI scaling from the screen factor and Use pixmaps with high DPI resolution. After restarting, the DPI scaling works as expected.
Great, thanks for the feedback. Maik