system76 nvidia cards not detected

[ryepup]

I have a system76 laptop with an integrated intel GPU and a dedicated nvidia GPU. My card is not being detected and thus the xorg.conf.d files are not being written.

$ lspci | grep -i VGA
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics (rev 05)
01:00.0 VGA compatible controller: NVIDIA Corporation TU106 [GeForce RTX 2060] (rev a1)
$ lspci | grep -i 3d
<no output>

Analysis

I believe the detection logic is here:

displaylink-debian/displaylink-debian.sh

Line 697 in 2675968

if [ "$drv_nvidia" == "NVIDIA" ] || [ "$drv" == "nvidia" ];

On my machine, those variables end up with the following values:

• $drv_nvidia - empty
• $drv - "i915\nnvidia"

The check for "$drv" == "nvidia" is failing due to the intel card mixed in. I think if we loosen that check to be a "string contains" check instead of a "string equals" check it'll work for my case in addition to the original cases.

Related issues: #217, #211

Related commits: 6936c2c, 3b88811