xorg couldn't open module vboxvideo

[thorstenhirsch]

There seems to be a problem with the linux vboxvideo module in the latest guest additions. This is what's in the xorg log file:

[   229.545] (==) Matched vboxvideo as autoconfigured driver 0
[   229.545] (==) Matched vboxvideo as autoconfigured driver 1
[   229.545] (II) LoadModule: "vboxvideo"
[   229.546] (WW) Warning, couldn't open module vboxvideo
[   229.546] (II) UnloadModule: "vboxvideo"
[   229.546] (II) Unloading vboxvideo
[   229.546] (EE) Failed to load module "vboxvideo" (module does not exist, 0)
[   229.547] (==) Matched vboxvideo as autoconfigured driver 0
[   229.547] (==) Matched vboxvideo as autoconfigured driver 1
[   229.547] (II) LoadModule: "vboxvideo"
[   229.547] (WW) Warning, couldn't open module vboxvideo
[   229.547] (II) UnloadModule: "vboxvideo"
[   229.547] (II) Unloading vboxvideo
[   229.547] (EE) Failed to load module "vboxvideo" (module does not exist, 0)

But the module was successfully loaded, here's what lsmod says:

vboxvideo              36864  2
ttm                   106496  1 vboxvideo
drm_kms_helper        172032  1 vboxvideo
drm                   401408  5 drm_kms_helper,vboxvideo,ttm

And this is the output of dmesg:

[    4.811273] vboxvideo 0000:00:02.0: fb0: vboxdrmfb frame buffer device
[    4.824322] [drm] Initialized vboxvideo 1.0.0 20130823 for 0000:00:02.0 on minor 0

It's Ubuntu 18.04.2 with kernel 4.15.0-46. All packages are up-to-date. I already updated VBoxGuestAdditions from 6.0.4 to 6.0.5-129665, but the problem remains the same.

[airMix]

Hey bro, here is a workaround: I guess you must change the default "Graphical controllers"[ which in %vmname%->settings->Display] to "VBoxVGA" for some reasons. Change it to "VMSVGA" [default setting] and reboot machine, you will see GNome start normally again!

[aeichner]

Please reopen if this still occurs with the latest release of VBox 6.0 or 6.1 respectively.