Bug 511075

(In reply to bugreports61 from comment #0)
> SUMMARY
> Since upgrading to plasma 6.5, the mouse cursor is stuck in games when
> playing with wine wayland enabled.
> This is a regressions, as it does not happen with latest plasma 6.4 .
> 
> STEPS TO REPRODUCE
> 1.  Start a game with Proton-GE with PROTON_ENABLE_WAYLAND=1 ( i used
> Horizon Zero Dawn Remaster, Gears 5, 
> 
> OBSERVED RESULT
> 1. You can not move the mouse cursor during loading screens, mouse cursor
> stuck
> 2. The mouse works in the game menu
> 3. The mouse cursor is stuck in game
> 
> 
> EXPECTED RESULT
> The mouse cursor fully works like it does in latest plasma 6.4
> 
> SOFTWARE/OS VERSIONS
> WARNING: radv is not a conformant Vulkan implementation, testing use only.
> Operating System: EndeavourOS 
> KDE Plasma Version: 6.5.0
> KDE Frameworks Version: 6.19.0
> Qt Version: 6.10.0
> Kernel Version: 6.17.3-273-tkg-eevdf (64-bit)
> Graphics Platform: Wayland
> Processors: 16 × AMD Ryzen 7 9800X3D 8-Core Processor
> Memory: 48 GiB of RAM (46.6 GiB usable)
> Graphics Processor: AMD Radeon RX 9070 
> 
> ADDITIONAL INFORMATION
> 
> Another use facing the same issue:
> https://discuss.kde.org/t/wine-wayland-bug-on-new-6-5/40874
> Using export KWIN_FORCE_SW_CURSOR=1 does not solve the issue.
> 
> Tried to downgrade to kwin 6.4.5 as a workaround, but can not due to missing
> symbols for kwin_kwayland after dowgrading kwin, plasma-activities and
> plasma-activities-stats. Anything else i would need to downgrad ?
> 
> Many thx
> Christian

I can concur the same issue using both mesa 25.2.5 and mesa-git

I have the same issue. Alt-tab to a different window and going back to the game workarounds the issue (cursor will finally disappear).

+1, can reproduce on NixOS unstable, seems to be games that set a custom cursor shape, I was able to reproduce in Deadlock as well as Lethal Company, but not Ultrakill (which does not use a custom cursor) when using wine wayland. It is also worth noting LC and Ultrakill are both Unity games while Deadlock uses Source 2.

Same issue here. Affected games: The Outer Worlds 2, Hollow Knight Silksong, Throne and Liberty.

Basically whenever a game assigns a custom shape cursor and tries to hide it (due to "action mode" for example) - cursor does not disappear. It stays visible on the screen, with last-assigned-shape and with last-known-coordinates. Alt-tabbing (or using any other way to swap active window back and forth) hides cursor.

Operating System: CachyOS Linux 
KDE Plasma Version: 6.5.0
KDE Frameworks Version: 6.19.0
Qt Version: 6.10.0
Kernel Version: 6.17.5-2-cachyos (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 7600X 6-Core Processor
Memory: 32 GiB of RAM (30,6 GiB usable)
Graphics Processor 1: AMD Radeon RX 6950 XT
Graphics Processor 2: AMD Radeon Graphics
Manufacturer: ASUS

Same issue.  Cursor gets stuck occasionally in Wine-Wayland games.

Sorry forgot to add my system specs
Operating System: openSUSE TW
KDE Plasma Version: 6.5.0
KDE Frameworks Version: 6.19.0
Qt Version: 6.10.0
Kernel Version: 6.17.4-1-default (64-bit)
Graphics Platform: Wayland
Processors: AMD Ryzen 5 5800x3d
Memory: 32 GiB of RAM
Graphics Processor 1: Nvidia 4070 Super 580.95.05 closed driver

Experiencing the same issue present in many games with proton-ge Wine-Wayland. Games experiencing this so far have been: valheim, peak and Gates of hell:ostfront. If i alt+tab it might go away but will reappear sometime later or if the game is paused. 

Operating System: Arch Linux 
KDE Plasma Version: 6.5.0
KDE Frameworks Version: 6.19.0
Qt Version: 6.10.0
Kernel Version: 6.17.5-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 7700 8-Core Processor
Memory: 34 GB of RAM (33,2 GB usable)
Graphics Processor: AMD Radeon RX 6700 XT
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: B650 AORUS ELITE AX V2
System Version: Default string-WCP

Same issue here in many games using PROTON_ENABLE_WAYLAND=1.
Using Nvidia GPU.

Can confirm the same issue with Overwatch 2. Removing "PROTON_ENABLE_WAYLAND=1" from the launch options resolves this issue on the latest version of Proton (proton-cachyos=2025-10-23-3). This was driving me nuts.

Operating System: CachyOS Linux 
KDE Plasma Version: 6.5.0
KDE Frameworks Version: 6.19.0
Qt Version: 6.10.0
Kernel Version: 6.17.5-2-cachyos (64-bit)
Graphics Platform: Wayland
Processors: 32 × 13th Gen Intel® Core™ i9-13900K
Memory: 64 GiB of RAM (62.5 GiB usable)
Graphics Processor: NVIDIA GeForce RTX 4090
Manufacturer: ASUS

I haven't seen this myself when playing Baldur's Gate 3 recently, but I can confirm in Horizon Zero Dawn.

A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/8326

Git commit d875d0f2955cc926d48a35376773051fa6c6bb47 by Xaver Hugl.
Committed on 29/10/2025 at 14:17.
Pushed by zamundaaa into branch 'master'.

scene/cursoritem: always reset the surface item if the surface is nullptr

The previous code misbehaved when a client first destroys the cursor surface and
only afterwards sets the cursor surface to null.
This is because SurfaceItemWayland::m_surface is a QPointer, so comparisons with
a nullptr would return true after the surface is destroyed, preventing the surface
item from being deleted.

M  +4    -6    src/scene/cursoritem.cpp

https://invent.kde.org/plasma/kwin/-/commit/d875d0f2955cc926d48a35376773051fa6c6bb47

Git commit 1c3b81e925bbc970deab14c71eee1d0f320ea8e0 by Xaver Hugl.
Committed on 29/10/2025 at 19:50.
Pushed by zamundaaa into branch 'Plasma/6.5'.

scene/cursoritem: always reset the surface item if the surface is nullptr

The previous code misbehaved when a client first destroys the cursor surface and
only afterwards sets the cursor surface to null.
This is because SurfaceItemWayland::m_surface is a QPointer, so comparisons with
a nullptr would return true after the surface is destroyed, preventing the surface
item from being deleted.


(cherry picked from commit d875d0f2955cc926d48a35376773051fa6c6bb47)

Co-authored-by: Xaver Hugl <xaver.hugl@kde.org>

M  +4    -6    src/scene/cursoritem.cpp

https://invent.kde.org/plasma/kwin/-/commit/1c3b81e925bbc970deab14c71eee1d0f320ea8e0