Dell Precision 3520 laptop - help with dual graphics card

Anton Shterenlikht mexas at
Fri Apr 6 14:37:10 UTC 2018

Please help

I got a Dell Precision 3520 laptop with 11.1-RELEASE.
I cannot figure out how to setup X:

[    92.583] (EE) open /dev/dri/card0: No such file or directory

And indeed there is no /dev/dri directory at all.

I seem to have a dual graphics card (or 2 cards):

vgapci1 at pci0:0:2:0:     class=0x030000 card=0x07a91028 chip=0x191b8086 rev=0x06 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'HD Graphics 530'
    class      = display
    subclass   = VGA

vgapci0 at pci0:1:0:0:     class=0x030200 card=0x07a91028 chip=0x13b410de rev=0xa2 hdr=0x00
    vendor     = 'NVIDIA Corporation'
    device     = 'GM107GLM [Quadro M620 Mobile]'
    class      = display
    subclass   = 3D

Which apparently is the source of my problems.
In this thread the suggestion is to disable
one card in BIOS:

Unfortunately I don't see any such or similar
option in my BIOS. Indeed my BIOS does not mention
2 cards. It only lists the Intel graphics device.

I searched all possible BIOS options - power, devices,
etc., but can find nothing to disable one card.

What else can I try?

Do I need to create an X config file in my case?



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