Cinny only shows blank window

[dermalikmann]

Describe the bug

Heya!
Recently found this client through the weekly matrix blog post.

When trying to open Cinny, I only get a blank window sadly. It looks like this
Following the output produced by running it via terminal:

> cinny

** (cinny:25118): WARNING **: 17:08:33.140: webkit_settings_set_enable_offline_web_application_cache is deprecated and does nothing.
src/nv_gbm.c:300: GBM-DRV error (nv_gbm_create_device_native): nv_common_gbm_create_device failed (ret=-1)

KMS: DRM_IOCTL_MODE_CREATE_DUMB failed: Permission denied
KMS: DRM_IOCTL_MODE_CREATE_DUMB failed: Permission denied
Failed to create GBM buffer of size 1024x724: Permission denied

Reproduction

No response

Expected behavior

No response

Platform and versions

Archlinux (updated on 2024-08-04 18:00)
Cinny 4.1.0 (latest AUR)

Additional context

The AUR package extracts the .deb file

Related to the KMS error message I found following issue: elementary/browser#104
One Response mentioned setting WEBKIT_DISABLE_DMABUF_RENDERER=1, which infact helped and showed me the login screen.
This is viable as a workaround but its not really a fix.

Another Comment mentioned changing some kernel module params, which got rid of the KMS issue, but the GBM buffer issue still persists, and I still get a blank window.

[rtxdr]

try running cinny like this in the terminal:
WEBKIT_DISABLE_DMABUF_RENDERER=1 cinny

[artpelling]

try running cinny like this in the terminal: WEBKIT_DISABLE_DMABUF_RENDERER=1 cinny

this worked for me, thanks. Any way to make that permanent?

[artpelling]

I just modified /var/lib/flatpak/exports/share/applications/in.cinny.Cinny.desktop file

[Desktop Entry]
Version=1.0
Type=Application
Name=Cinny
Comment=Yet another matrix client with simple, elegant and secure interface.
Icon=in.cinny.Cinny
Exec=env WEBKIT_DISABLE_DMABUF_RENDERER=1 /usr/bin/flatpak run --branch=stable --arch=x86_64 --command=cinny in.cinny.Cinny
Terminal=false
Categories=Network;InstantMessaging;
Keywords=Matrix;matrix.org;chat;irc;communications;talk;riot;element;fractal;voip;
X-Purism-FormFactor=Workstation;Mobile;
X-Flatpak=in.cinny.Cinny

which works perfectly for me.

[lili36]

Hello ! I have the same issue with .deb on Linux Mint.
I read on some issue it should be fixed at some point ? Because this workaround may create issues, doesn't it ?

Also, this workaround doesn't work for me (I tried in terminal and in cinny.desktop file, of course if it doesn't work in terminal it doesn't work in file either).
Any idea ?
I have the same issue with AppImage version.
Didn't try with flatpak yet.

[lili36]

I also tested elementary/browser#104 (comment) kernel setting.
None of this works for me, whatever format I use, still black window.
I am on Linux Mint 20.2 Uma with NVIDIA GF119 [GeForce GT 610]

[wanderingmagus]

I have the same problem with blank/black screen in Cinny on the flatpak version. I'm using Linux Mint 22 x86_64 with Kernel: 6.8.0-47-generic and Cinnamon 6.2.9, NVIDIA GeForce RTX 2070 SUPER M and Intel i9-10980HK (16) @ 5.300GH. I've tried the file edit and the terminal workaround, no dice.

[CryptArchy]

Ran into the same issue. @artpelling 's workaround fixed it for me. System specs:

System:
Kernel: 6.8.0-48-generic arch: x86_64 bits: 64 compiler: gcc v: 13.2.0 clocksource: tsc
Desktop: Cinnamon v: 6.2.9 tk: GTK v: 3.24.41 wm: Muffin v: 6.2.0 vt: 7 dm: LightDM v: 1.30.0
Distro: Linux Mint 22 Wilma base: Ubuntu 24.04 noble
Machine:
CPU:
Info: 8-core model: AMD Ryzen 7 3800X
Graphics:
Device-1: NVIDIA GA106 [GeForce RTX 3060] vendor: Gigabyte driver: nvidia v: 550.120
Display: x11 server: X.Org v: 21.1.11 with: Xwayland v: 23.2.6 driver: X: loaded: nvidia
unloaded: fbdev,modesetting,nouveau,vesa gpu: nvidia,nvidia-nvswitch display-ID: :0 screens: 1
Screen-1: 0 s-res: 3440x1440 s-dpi: 109 s-size: 802x342mm (31.57x13.46") s-diag: 872mm (34.33")
Monitor-1: HDMI-0 res: 3440x1440 hz: 60 dpi: 109 size: 800x335mm (31.5x13.19")