Display deviation from mouse touch position

popjdh commented 9 months ago

Game or games this happens in

None

What area of the game / PPSSPP

My environment is Linux 6.6.10-arch1-1 and KDE 5.27.10. My KDE`s is global scaling set to 125%. When using PPSSPPSDL, It works Well. But when using PPSSPPQt, It seems to have a deviation between the touch area and the display area. The display area plus the black part represents the actual touch area. In full screen mode, the display part occupies the entire screen, which makes some areas unable to be touched (located outside the screen)

What should happen

It should not have a mismatch between the touch area and the display area.

Logs

None

Platform

Linux / BSD

Mobile device model or graphics card (GPU)

NVIDIA GeForce GTX 1660 TI

PPSSPP version affected

1.16.6

Last working version

None

Graphics backend (3D API)

OpenGL / GLES

Checklist

[X] Test in the latest git build in case it's already fixed.
[X] Search for other reports of the same issue.
[X] Try resetting settings or older versions and include if the issue is related.
[X] Try without any cheats and without loading any save states.
[X] Include logs or screenshots of issue.

popjdh commented 9 months ago

Supplement: I tried setting environment variables such as QT_AUTO_SCREEN_SCALE_FACTOR=0, QT_SCREEN_SCALE_FACTORS=1, and QT_SCALE_FACTOR=1. In the end, QT_SCREEN_SCALE_FACTORS=1 successfully solved this problem, while the other two were ineffective.

❯ QT_SCREEN_SCALE_FACTORS="1" PPSSPPQt

Result:

hrydgard commented 9 months ago

The Qt build is not really actively maintained due to a lack of time, it was contributed by someone who didn't end up helping maintain it. Still, I do try to fix obviously bad stuff like this when possible, so tagging for 1.18.

hrydgard commented 1 month ago

Can't reproduce this in Qt on Ubuntu using 125% or 150% scaling. Postponing.

hrydgard / ppsspp