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id = 1276
title = "[SDL] Fractional scaling is blurry"
state = "opened"
created_at = "2022-10-26T08:33:38.308Z"
closed_at = "n/a"
labels = ["device:graphics"]
url = "https://gitlab.com/qemu-project/qemu/-/issues/1276"
host-os = "Linux"
host-arch = "x86"
qemu-version = "7.1.0"
guest-os = "Ubuntu 22.04.1"
guest-arch = "x86"
description = """The display looks blurry"""
reproduce = """1. Use a Wayland compositor (eg. Sway) with scale set to `1.25`
2. Launch an Ubuntu guest with the SDL display
3. Notice blurryness"""
additional = """https://github.com/libsdl-org/SDL/issues/6438
Blurry display https://user-images.githubusercontent.com/67585967/197484538-fde750aa-8982-4ac2-9d83-3861f6411a31.png
Display with 1.00 scale https://user-images.githubusercontent.com/67585967/197484417-afd1d1c5-5ea1-46ce-82c5-fa8d9b2df459.png
It was suggested in the SDL issue (https://github.com/libsdl-org/SDL/issues/6438#issuecomment-1289513402) that it's caused by the `SDL_WINDOW_ALLOW_HIGHDPI` not being set. However, after setting that flag, the display is sharp again but it's not scaled properly (boxed) https://github.com/libsdl-org/SDL/issues/6438#issuecomment-1291663284, no idea what other changes need to be made."""
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