openlp-core team mailing list archive

[David White <1687467@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

OS Ubuntu 17.04
OpenLP 2.4.5

Description of problem.
The UI has badly blown-up UI elements when you have a properly configured hidpi monitor. OpenLP appears to apply the UI scaling twice to produce extemely large UI elements and UI fonts.

To reproduce this problem.
1. Install Ubuntu 17.04 on a computer with a hidpi monitor (e.g. Dell XPS15). T
2. Log in to Ubuntu. The windows & all UI elements will appear tiny. Go to System Settings > Screen Display and set the "scale for menu and title bars" to 2.0 and press Apply.
3. Install and run OpenLP

Work around.
Setting the system UI scaling back to 2.0 fixes the problem but the window and menu UI elements are pretty unusable.

Other information.
Running from the command line gives the following errors which may be relevant:
$ openlp
Warning: QT_DEVICE_PIXEL_RATIO is deprecated. Instead use: 
    QT_AUTO_SCREEN_SCALE_FACTOR to enable platform plugin controlled per-screen factors. 
    QT_SCREEN_SCALE_FACTORS to set per-screen factors. 
    QT_SCALE_FACTOR to set the application global scale factor.

** Affects: openlp
     Importance: Undecided
         Status: New


** Tags: hidpi

** Attachment added: "How the UI looks on a hidpi monitor (set scaling to 50% to view on a standard monitor)"
   https://bugs.launchpad.net/bugs/1687467/+attachment/4870481/+files/Screenshot%20from%202017-05-01%2021-17-36.png

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https://bugs.launchpad.net/bugs/1687467

Title:
  Display problems for hidpi laptops

Status in OpenLP:
  New

Bug description:
  OS Ubuntu 17.04
  OpenLP 2.4.5

  Description of problem.
  The UI has badly blown-up UI elements when you have a properly configured hidpi monitor. OpenLP appears to apply the UI scaling twice to produce extemely large UI elements and UI fonts.

  To reproduce this problem.
  1. Install Ubuntu 17.04 on a computer with a hidpi monitor (e.g. Dell XPS15). T
  2. Log in to Ubuntu. The windows & all UI elements will appear tiny. Go to System Settings > Screen Display and set the "scale for menu and title bars" to 2.0 and press Apply.
  3. Install and run OpenLP

  Work around.
  Setting the system UI scaling back to 2.0 fixes the problem but the window and menu UI elements are pretty unusable.

  Other information.
  Running from the command line gives the following errors which may be relevant:
  $ openlp
  Warning: QT_DEVICE_PIXEL_RATIO is deprecated. Instead use: 
      QT_AUTO_SCREEN_SCALE_FACTOR to enable platform plugin controlled per-screen factors. 
      QT_SCREEN_SCALE_FACTORS to set per-screen factors. 
      QT_SCALE_FACTOR to set the application global scale factor.

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