Arch Linux

hwallace

Member

Registered: 2021-08-30

Posts: 110

[SOLVED] Slightdm black screen -failed to create vmw_framebuffe

In VirtualBox Version 6.1.38 r153438
Host and Guest both Arch 5.19.12,

Guest Arch:

kernel 5.19.12 or 5.15.71-1-lts (no difference)
mate-desktop (1.26.0-1)
lightdm (1:1.32.0-1)
lightdm-gtk-greeter (1:2.0.8-2)

All is well until lightdm startup.
System accessible via SSH to get these snips:

From journalctl

kernel: [drm:vmw_kms_fb_create [vmwgfx]] *ERROR* failed to create vmw_framebuffer: -22
kernel: [drm:vmw_kms_new_framebuffer [vmwgfx]] *ERROR* Invalid surface format for requested mode.

[/var/log/lightdm/lightdm.log shows nothing unusual

/var/log/lightdm/x-0.log

failed to add fb -22

/var/log/Xorg.0.log

[   19.643] (II) No input driver specified, ignoring this device.
[    19.643] (II) This device may have been added with another device file.
[    19.682] failed to add fb -22
[    19.683] (EE) modeset(0): failed to set mode: Invalid argument
[    20.369] (II) modeset(0): Allocate new frame buffer 1920x1080 stride
[    20.371] failed to add fb -22

Last edited by hwallace (2022-09-30 23:49:38)

hwallace

Member

Registered: 2021-08-30

Posts: 110

Re: [SOLVED] Slightdm black screen -failed to create vmw_framebuffe

Fixed by disabling 3D Acceleration.