Lotus CIandClaude Opus 5.5
bb5364b53c
The 4.12.343 workaround (WEBKIT_DISABLE_DMABUF_RENDERER=1 + GDK_BACKEND=x11)
made the app launch but pushed every frame through shared memory under
XWayland: noticeably laggy at 3840x2058. The reporter's WAYLAND_DEBUG trace
showed the real cause on native Wayland:
wl_display#1.error(wp_linux_drm_syncobj_surface_v1#51, 4,
"explicit sync is used, but no acquire point is set")
Gdk-Message: Error 71 (Protocol error) dispatching to Wayland display.
An explicit-sync bug, not a GBM format/modifier one. Their test matrix
(RTX 3070, driver 615.71.09, webkit2gtk 2.52.6, KDE Wayland):
- __NV_DISABLE_EXPLICIT_SYNC=1 alone: clean, GPU (DMA-BUF) renderer, smooth;
- WEBKIT_DISABLE_DMABUF_RENDERER=1 alone on Wayland: clean (no X11 needed);
- WEBKIT_DMABUF_RENDERER_DISABLE_GBM=1: same explicit-sync error on Wayland,
"Failed to import DMABuf" under XWayland;
- X11/XWayland with the DMA-BUF renderer: "Failed to create GBM buffer".
New defaults when the NVIDIA driver is loaded:
- native Wayland: __NV_DISABLE_EXPLICIT_SYNC=1, GPU renderer kept;
- X11 session or user-forced GDK_BACKEND=x11: WEBKIT_DISABLE_DMABUF_RENDERER=1;
- never force X11 any more;
- LOTUS_GPU_SAFE_MODE=1: opt-in shared-memory rendering on Wayland too;
- LOTUS_NO_GPU_WORKAROUNDS=1 / user-set values: untouched.
One stderr line says what was set. 9 unit tests.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPmy3tPq869XDW4njjVaKA
Cinny desktop
Cinny is a matrix client focusing primarily on simple, elegant and secure interface. The desktop app is made with Tauri.
Download
Installers for macOS, Windows and Linux can be downloaded from Github releases. Releases are signed with a Ed25519 public-key.
| Operating System | Download |
|---|---|
| Windows | Get it on Windows |
| macOS | Get it on macOS |
| Linux | Get it on Linux · Flatpak |
Decoded public key:
RWRflTUQD3RHFtn25QNANCmePR9+4LSK89kAKTMEEB4OKpOFpLMgc64z
To verify release files, you need to download minisign tool and decode the .sig file before running:
minisign -Vm RELEASE_FILE.msi.zip -P RWRflTUQD3RHFtn25QNANCmePR9+4LSK89kAKTMEEB4OKpOFpLMgc64z -x SINGATURE.msi.zip.sig
Local development
Firstly, to setup Rust, NodeJS and build tools follow Tauri documentation.
Now, to setup development locally run the following commands:
git clone --recursive https://github.com/cinnyapp/cinny-desktop.gitcd cinny-desktop/cinnynpm cicd ..npm ci
To build the app locally, run:
npm run tauri build
To start local dev server, run:
npm run tauri dev