Quassel IRC

mikejohnson wrote:

On high-DPI displays, some UI elements appear blurry and scale inconsistently. Text, icons, and spacing look uneven across different windows, affecting readability and overall usability. Proper DPI-aware scaling would improve the user experience on modern high-resolution screens.

+1 for proper DPI-aware scaling support! Modern high-DPI displays really suffer when mixed DPI or non-integer scaling factors (like 125% or 150%) come into play. Rasterized assets look blurry, and layout padding breaks across multi-monitor setups with different scaling percentages. Moving to vector-based icons and ensuring the UI framework properly hooks into OS-level scaling APIs (like Windows PerMonitorV2 DPI awareness) would make a huge difference in visual fidelity and usability.
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I hit the same issue on Linux with Qt scaling, especially on 4K displays. Setting QT_AUTO_SCREEN_SCALE_FACTOR=1 or QT_SCALE_FACTOR=1.25 in the environment helps as a temporary workaround, but proper Qt High-DPI support in the build would definitely be the ideal fix.

Has anyone checked if enabling QT_ENABLE_HIGHDPI_SCALING=1 in the startup script or forcing QT_SCALE_FACTOR_ROUNDING_POLICY=PassThrough fixes the fractional scaling blur on multi-monitor setups? If this is specific to Qt 5 builds, updating the core framework config might be easier than manually overriding environment variables fnf
for each screen.

Has anyone tested these Qt settings? `QT_ENABLE_HIGHDPI_SCALING=1` or `QT_SCALE_FACTOR_ROUNDING_POLICY=PassThrough` might fix the fractional scaling blur, Like a Broken screen