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linuxmint / mint20-beta

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Disabling HiDPI interface scaling doesn't work #106

Closed dominalien closed 4 years ago

dominalien commented 4 years ago

1080p 13" screen, Intel Core i7-7200U with HD Graphics 620. In screen properties I have zoom set to 125% and interface scaling set to HiDPI. When I set interface scaling to normal and press apply, I get a very tall (multiple screens) error window like shown in the attached screenshot. After pressing enter (I scrolled the window once and it just has one Close button at the bottom) Cinnamon crashes. Zrzut ekranu z 2020-06-18 08-31-18

dominalien commented 4 years ago

Setting scaling to 100% resets interface scaling to normal and then clicking apply works.

mtwebster commented 4 years ago

Please checkout this comment: https://github.com/linuxmint/cinnamon-control-center/pull/238#issuecomment-646734935

Thanks

dominalien commented 4 years ago

It's a bit different, but the problem remains. Once I got this window when enabling HiDPI interface scaling, but cinnamon didn't crash. Once I got both 125% and HiDPI enabled, disabling HiDPI caused the error and cinnamon crash. Setting zoom to 100% no longer reset HiDPI to normal Logging out and back in allowed me to get back to 100% and normal scaling.

Performance with 125% and HiDPI is still dire and there's plenty of tearing.

clefebvre commented 4 years ago

Hi,

This is upstream from us unfortunately and a limitation between xrandr and the GPU driver. What we'll do is make it clearer fractional scaling is ON and advertise it as an experimental feature with limitations.