Cannot find any crtc or sizes

[mowgli]

I am on Gentoo and using nvidia for my display. Now I tried to utilize a second laptop with an virtual device.

I came to evdi and gave it a try. However, it did not work as expected.

When I first modprobe the module, X crashed but came back. But I was not able to get a second provider running.

The kernel tells me the following:

Feb  6 20:07:30 ikki kernel: evdi: loading out-of-tree module taints kernel.
Feb  6 20:07:30 ikki kernel: evdi: module verification failed: signature and/or required key missing - tainting kernel
Feb  6 20:07:30 ikki kernel: evdi: [I] Initialising logging on level 4
Feb  6 20:07:30 ikki kernel: evdi: [I] Atomic driver: yes
Feb  6 20:07:30 ikki kernel: evdi: [I] Increasing device count to 2
Feb  6 20:07:30 ikki kernel: evdi: [I] (card0) Opened by Task 4183 (modprobe) of process 4183 (modprobe)
Feb  6 20:07:30 ikki kernel: evdi evdi.0: [drm] Cannot find any crtc or sizes
Feb  6 20:07:30 ikki kernel: [drm] Initialized evdi 1.14.13 20260120 for evdi.0 on minor 0
Feb  6 20:07:30 ikki kernel: evdi: [I] Evdi platform_device create
Feb  6 20:07:30 ikki kernel: evdi: [I] (card1) Opened by Task 4183 (modprobe) of process 4183 (modprobe)
Feb  6 20:07:30 ikki kernel: evdi evdi.1: [drm] Cannot find any crtc or sizes
Feb  6 20:07:30 ikki kernel: [drm] Initialized evdi 1.14.13 20260120 for evdi.1 on minor 1
Feb  6 20:07:30 ikki kernel: evdi: [I] Evdi platform_device create

My kernel is not the freshed, it is 6.6.119, which is the last one I can run my nvidia graphic on. (GTX 680)

So, is there any way to use evdi and have it finding virtual crtc?

[synaptics-lspintzyk]

evdi is not enought, you need DisplayLink userspace driver as well. Please install it using standalone installer:
https://www.synaptics.com/products/displaylink-graphics/downloads/ubuntu
or direct link:

https://www.synaptics.com/products/displaylink-usb-graphics-software-ubuntu-62?filetype=exe