Blank screen

[azakharchenko-msol]

Describe the bug
Opening kreya results blank screen
To Reproduce
Steps to reproduce the behavior:
run snap install kreya by default installs from latest/stable channel, the same issue seems on latest/edge

Expected behavior
Kreya is up and running
Screenshots

Environment (if possible, copy the information from the error dialog or the About menu):

• OS: Ubuntu 22.04
• Kreya Version 1.14.0

Additional context
logs

Gtk-Message: 10:07:06.664: Not loading module "atk-bridge": The functionality is provided by GTK natively. Please try to not load it.

(kreya:1857781): Gtk-WARNING **: 10:07:06.716: GTK+ module /snap/kreya/215/gnome-platform/usr/lib/gtk-2.0/modules/libcanberra-gtk-module.so cannot be loaded.
GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.
Gtk-Message: 10:07:06.716: Failed to load module "canberra-gtk-module"

(kreya:1857781): Gtk-WARNING **: 10:07:06.717: GTK+ module /snap/kreya/215/gnome-platform/usr/lib/gtk-2.0/modules/libcanberra-gtk-module.so cannot be loaded.
GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.
Gtk-Message: 10:07:06.717: Failed to load module "canberra-gtk-module"

** (kreya:1857781): WARNING **: 10:07:08.023: Could not open /sys/class/dmi/id/chassis_type: Failed to open file “/sys/class/dmi/id/chassis_type”: Permission denied

** (kreya:1857781): WARNING **: 10:07:08.023: Could not open /sys/firmware/acpi/pm_profile: Failed to open file “/sys/firmware/acpi/pm_profile”: Permission denied
Gtk-Message: 10:07:08.084: Not loading module "atk-bridge": The functionality is provided by GTK natively. Please try to not load it.

(WebKitWebProcess:1857893): Gtk-WARNING **: 10:07:08.176: GTK+ module /snap/kreya/215/gnome-platform/usr/lib/gtk-2.0/modules/libcanberra-gtk-module.so cannot be loaded.
GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.
Gtk-Message: 10:07:08.176: Failed to load module "canberra-gtk-module"

(WebKitWebProcess:1857893): Gtk-WARNING **: 10:07:08.177: GTK+ module /snap/kreya/215/gnome-platform/usr/lib/gtk-2.0/modules/libcanberra-gtk-module.so cannot be loaded.
GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported.
Gtk-Message: 10:07:08.177: Failed to load module "canberra-gtk-module"
KMS: DRM_IOCTL_MODE_CREATE_DUMB failed: Permission denied
Failed to create GBM buffer of size 600x672: Permission denied
KMS: DRM_IOCTL_MODE_CREATE_DUMB failed: Permission denied
Failed to create GBM buffer of size 600x672: Permission denied
KMS: DRM_IOCTL_MODE_CREATE_DUMB failed: Permission denied
Failed to create GBM buffer of size 600x672: Permission denied
Failed to create EGL images for DMABufs with file descriptors -1, -1 and -1

** (WebKitWebProcess:1857893): WARNING **: 10:07:08.357: Could not open /sys/class/dmi/id/chassis_type: Failed to open file “/sys/class/dmi/id/chassis_type”: Permission denied

** (WebKitWebProcess:1857893): WARNING **: 10:07:08.357: Could not open /sys/firmware/acpi/pm_profile: Failed to open file “/sys/firmware/acpi/pm_profile”: Permission denied

** (WebKitWebProcess:1857893): WARNING **: 10:07:08.358: Failed to get atspi registered event listeners: GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: An AppArmor policy prevents this sender from sending this message to this recipient; type="method_call", sender=":1.452" (uid=1000 pid=1857893 comm="/usr/lib/x86_64-linux-gnu/webkit2gtk-4.0/WebKitWeb" label="snap.kreya.kreya (enforce)") interface="org.a11y.atspi.Registry" member="GetRegisteredEvents" error name="(unset)" requested_reply="0" destination=":1.2" (uid=1000 pid=4183 comm="/usr/libexec/at-spi2-registryd --use-gnome-session" label="unconfined")

[CommonGuy]

Very strange, I just tried this on Ubuntu 22.04 and it works for me.

Do you have any special configuration on your system?

[azakharchenko-msol]

@CommonGuy Thanks for checking, good to know that it is my local issue! My configuration is rather not special: stock ubuntu 22.04 with gnome 42.9
tried:

1. delete ~/snap/kreya and reinstall snap
2. run as other user
3. use different version (latest/edge) on my case
   Please let me know if I can try something else or collect additional logs

Will try to check fresh installation and see if i can add reproduce steps

[jmlara]

I'm getting a similar error running on Kubuntu 20.04.6 LTS .

(kreya:162753): Gtk-WARNING **: 15:18:01.633: Theme parsing error: gtk.css:1:21: Failed to import: Error opening file /home/jlara/snap/kreya/215/.config/gtk-3.0/colors.css: No such file or directory

** (kreya:162753): WARNING **: 15:18:01.746: Could not open /sys/class/dmi/id/chassis_type: Failed to open file “/sys/class/dmi/id/chassis_type”: Permission denied

** (kreya:162753): WARNING **: 15:18:01.746: Could not open /sys/firmware/acpi/pm_profile: Failed to open file “/sys/firmware/acpi/pm_profile”: Permission denied

(WebKitWebProcess:162949): Gtk-WARNING **: 15:18:01.956: Theme parsing error: gtk.css:1:21: Failed to import: Error opening file /home/jlara/snap/kreya/215/.config/gtk-3.0/colors.css: No such file or directory
KMS: DRM_IOCTL_MODE_CREATE_DUMB failed: Permission denied
Failed to create GBM buffer of size 600x667: Permission denied
KMS: DRM_IOCTL_MODE_CREATE_DUMB failed: Permission denied
Failed to create GBM buffer of size 600x667: Permission denied
KMS: DRM_IOCTL_MODE_CREATE_DUMB failed: Permission denied
Failed to create GBM buffer of size 600x667: Permission denied
Failed to create EGL images for DMABufs with file descriptors -1, -1 and -1

** (WebKitWebProcess:162949): WARNING **: 15:18:02.092: Could not open /sys/class/dmi/id/chassis_type: Failed to open file “/sys/class/dmi/id/chassis_type”: Permission denied

** (WebKitWebProcess:162949): WARNING **: 15:18:02.092: Could not open /sys/firmware/acpi/pm_profile: Failed to open file “/sys/firmware/acpi/pm_profile”: Permission denied

** (WebKitWebProcess:162949): WARNING **: 15:18:02.092: Failed to get atspi registered event listeners: GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: An AppArmor policy prevents this sender from sending this message to this recipient; type="method_call", sender=":1.44" (uid=1000 pid=162949 comm="/usr/lib/x86_64-linux-gnu/webkit2gtk-4.0/WebKitWeb" label="snap.kreya.kreya (enforce)") interface="org.a11y.atspi.Registry" member="GetRegisteredEvents" error name="(unset)" requested_reply="0" destination=":1.3" (uid=1000 pid=9654 comm="/usr/libexec/at-spi2-registryd --use-gnome-session" label="unconfined")

(WebKitWebProcess:162949): GStreamer-WARNING **: 15:21:16.346: External plugin loader failed. This most likely means that the plugin loader helper binary was not found or could not be run. You might need to set the GST_PLUGIN_SCANNER environment variable if your setup is unusual. This should normally not be required though.

Is the latest/edge available via snap?

[CommonGuy]

Do you have a Nvidia GPU? Do any of the workarounds in wailsapp/wails#2977 help?

[azakharchenko-msol]

The workaround helps! Thanks @CommonGuy
running it as WEBKIT_DISABLE_DMABUF_RENDERER=1 kreya makes the trick and make it usable again 👍
btw, have nvidia card and and cat /sys/module/nvidia_drm/parameters/modeset returns Y

[jmlara]

I have a NVIDIA card. The workaround works in Kubuntu 20.04.6 LTS as well. Updated to WEBKIT_DISABLE_DMABUF_RENDERER=1 in /etc/environment file.

[CommonGuy]

Thanks for your feedback! I'll see whether we can solve this on our side in the future

[CommonGuy]

Thanks for your feedback. I added this information to our (newly created) FAQ: https://kreya.app/docs/faq/