I recently installed Linux Mint Cinnamon on a laptop, and I’m having a two-sided issue. Web searches have yielded no solution. I’m also very new to Linux.

Problem 1: When alt-tabbing out of a fullscreen application (at this moment, Helldivers 2), the application will minimize, but I cannot restore it. It will appear for roughly half a second, and then re-minimize. I can hear the game still running in the background.

I have tried alt-tab, super+number, and right-click>restore. None seem to work.
I have tried disabling thumbnails for windows, no fix.
Disabling effects, no fix.

Problem 2: As a workaround for problem 1, I tried borderless fullscreen. It works, but there is a white, 1 px border around the screen. I have tried changing themes, no fix. Same thing with disabling effects. I do like the Mint-Y theme, but there’s no longer an option to change window borders, from what I’ve researched. Again, trying a different theme didn’t seem to get rid of the white border.

Please help.

  • The Bard in GreenA
    3•13 hours ago

    Something very similar happens to me in some Windows games on Mint with Cinnamon, especially older games running using Proton. I’ve had it happen recently with Age of Mythology and Fallout New Vegas.

    Unfortunately, I don’t have the answer for you, but I can tell you you’re not alone.