HiDPI / fractional scaling support per-monitor · winapps-org/winapps#825

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good first issue

説明

Discussed in https://github.com/winapps-org/winapps/discussions/824

Originally posted by mlltAero November 19, 2025 Currently, WinApps uses a global RDP_SCALE for all RemoteApp windows. On HiDPI laptops, this causes RemoteApps to render tiny because the scale does not automatically match the display’s effective scaling.

Problem:

RDP_SCALE is static and does not account for fractional scaling in GNOME or per-monitor DPI. Users with HiDPI laptop screens must manually adjust RDP_SCALE in winapps.conf.

Proposed feature:

Automatically detect the primary monitor and its scaling (e.g., GNOME fractional scaling or via xrandr resolution vs. native panel size) and convert to supported scaling factor (nearest neighbor). Adjust RDP_SCALE for RemoteApp windows on launch so they render correctly on HiDPI displays.

コントリビューターガイド

技術スタック: shell
領域: desktopperformance
Issue 種別: feature
難度: 3
推定時間: half day
活動状況: fresh
明確さ: clear
前提条件: Linux desktop scaling conceptsxrandr command usagewinapps configuration
初心者向け度: 40
調査方針: Investigate the current RDP SCALE handling in winapps configuration scripts (likely in src/ directory). Use xrandr and gsettings to detect monitor scaling factor on GNOME. Adapt the scaling calculation to set RDP SCALE per monitor or globally based on primary monitor. See the referenced discussion (https://github.com/winapps org/winapps/discussions/824) for additional context.