Linux Mint 19.3 (Cinnamon) / Samsung C49RG90
Posted: 5. May 2020, 10:09
I just thought I would post here as I was having problems launching Virtualbox 6.0.10 when using the above display at it's native 5120x1440 resolution. When starting Virtualbox, the desktop display animation appears to show a window opening, but the Virtualbox UI itself is not drawn. Doing a little research here suggested that if the following environment variables were set, issues with Debian/QT would be resolved. It also worked in my instance.
If the monitor is used in PBP mode (2xDisplay Port or 1xDisplay Port and 1xHDMI) there are no problems, so I imagine it is a resolution issue.
If anyone is able to explain why this works, it would be very helpful, but my main purpose for posting is to potentially help others with specifically the same problem as I have. Naturally, I am unsure if there are any negative side-effects of my suggestion but will post back any findings as I work.
Code: Select all
export QT_SCREEN_SCALE_FACTORS=1
export QT_SCALE_FACTOR=1
export QT_AUTO_SCREEN_SCALE_FACTOR=0
If anyone is able to explain why this works, it would be very helpful, but my main purpose for posting is to potentially help others with specifically the same problem as I have. Naturally, I am unsure if there are any negative side-effects of my suggestion but will post back any findings as I work.