Dgpu on Surface book 1 does not work and is not detected (Nvidia GeForce 940M)

My System is now working after a fresh install, but only the intel chip inside the CPU. I can't switch between the graphic chips. Can somebody help me? I am new to Linux!
Kind regrets

RRidis My System is now working after a fresh install, but only the intel chip inside t...

Korta•5/7/25, 12:48 PM

open up terminal and run

lspci | grep "NVIDIA"

lspci | grep "NVIDIA"

lspci will list your pcie devices and other bridges

Korta•5/7/25, 12:50 PM

and how did you installed bazzite ?

RidisOP•5/7/25, 12:53 PM

the terminal does nothing with this command

RidisOP•5/7/25, 12:54 PM

rufus/usb

Korta•5/7/25, 12:57 PM

huh
the old gpu models are grayed out

RRidis the terminal does nothing with this command

Korta•5/7/25, 12:58 PM

well that means your gpu is not being detected

RidisOP•5/7/25, 12:59 PM

ohh no.... so it will not work?

Korta•5/7/25, 1:01 PM

hmm, maybe using older drivers could fix it
@asen23 , why is the option being grayed out for older nv cards for surface laptops?
have any idea?

RRidis ohh no.... so it will not work?

Korta•5/7/25, 1:05 PM

asen23•5/7/25, 1:05 PM

surface laptop are barely supported

asen23•5/7/25, 1:05 PM

the dev doesnt have device to test it

Korta•5/7/25, 1:05 PM

damn

RidisOP•5/7/25, 1:11 PM

$ lspci | grep -E 'VGA|3D|NVIDIA'
00:02.0 VGA compatible controller: Intel Corporation Skylake GT2 [HD Graphics 520] (rev 07)

RidisOP•5/7/25, 1:11 PM

the other line does nothing

RRidis ohh no.... so it will not work?

Korta•5/7/25, 1:11 PM

well the latest drivers version: 570.133.07 in my system supports the 900m series
but its weird that, even lspci doesnt show the card

RRidis $ lspci | grep -E 'VGA|3D|NVIDIA' 00:02.0 VGA compatible controller: Intel Corpo...

Korta•5/7/25, 1:11 PM

as i thought

RRidis the other line does nothing

Korta•5/7/25, 1:12 PM

whats your microsoft surface model?

RidisOP•5/7/25, 1:12 PM

surface book 1

RRidis surface book 1

Korta•5/7/25, 1:14 PM

run fastfetchfastfetch in your terminal and send a ss

RidisOP•5/7/25, 1:16 PM

  bazzite@bazzite
%%%%%%====%%%%%%%%%%
%%%%%%%% %%%%%%%%%%%%%% ��  bazzite-nvidia:stable 
%%%%%%%%% %%%%%%%%%%%%%%%% ��  Bazzite 42 (FROM Fedora Kinoite)
%%%%%%%%% %%%%%%%%%%%%%%%###   Linux 6.14.4-103.bazzite.fc42.x86_64
%%%%%%%%% %%%%%%%%%%%%%###### ��  45 mins
== =======######
== =========##### ��  Surface Book (124000000000000000000000D:0B:09F:1C:03P:38)
%%%%%%%%% %%%%%%%####======##### ��  Intel(R) Core(TM) i7-6600U (4) @ 3.40 GHz
%%%%%%%%% %%%%%#######=====##### ��  Intel HD Graphics 520 @ 1.05 GHz [Integrated]
%%%%%%%%% %%%#########=====#####   3.86 GiB / 7.66 GiB (50%)
%%%%%%%%% %%##########=====#####   41.88 MiB / 41.88 MiB (100%) - overlay [Read-only]
%%%%%%%%%====###########=====######   21.96 GiB / 236.89 GiB (9%) - btrfs [Read-only]
%%%%%%%%====#########======###### ��  3000x2000 @ 60 Hz (as 1669x1113) in 13" [Built-in]
%%%%%%%=====#####========######   88% [Charging, AC Connected]
%%%%###===============#######   74% [Charging, AC Connected]
%#######==========#########
####################### ��  KDE Plasma 6.3.4
###################   KWin (Wayland)
###########   bash 5.2.37
  Ptyxis 48.1
��  2711 (rpm), 42 (flatpak)

Korta•5/7/25, 1:18 PM

https://www.notebookcheck.net/Microsoft-Surface-Book-Core-i7-940M-Convertible-Review.160679.0.html
this one

Notebookcheck

Microsoft Surface Book (Core i7, 940M) Convertible Review

In-depth review of the Microsoft Surface Book Core i7 (Intel Core i7 6600U, NVIDIA Maxwell GPU (940M, GDDR5), 13.5", 1.5 ) with numerous measurements, benchmarks, and evaluations

RidisOP•5/7/25, 1:18 PM

yes

RRidis   bazzite@bazzite %%%%%%====%%%%%%%%%% %%%%%%%% %%%%%%%...

Korta•5/7/25, 1:18 PM

well here is the issue
the lspcilspci command that i told you to run, shouldve showed the nvidia GPU in the output, but its not

when you were using windows, you were able to use the gpu yes?

RidisOP•5/7/25, 1:19 PM

yes

dreamyuki•5/7/25, 1:23 PM

Just a reminder Universal Blue image like Bazzite Bluefin Aurora will stop supporting Maxwell and Pascal GPU very soon

dreamyuki•5/7/25, 1:24 PM

Around 2026/2027

Korta•5/7/25, 1:26 PM

oh well

Korta•5/7/25, 1:36 PM

so after doing a bit of research on this, the nvidia dGPU is located in the detachable keyboard in the surface laptop and it uses some kind of a proprietary connector to connect the dGPU with the display, but it doesnt have MUX switch and i am not sure that it uses optimus too

Korta•5/7/25, 1:38 PM

so you probably cannot use your dGPU without doing certain hacks or changes, because the linux kernel isnt even seeing the dgpu

Korta•5/7/25, 1:38 PM

sucks

Korta•5/7/25, 1:38 PM

maybe someone who has your model or similar can help you regarding this

RidisOP•5/7/25, 1:38 PM

thx for the help men
but yes it sucks

Dgpu on Surface book 1 does not work and is not detected (Nvidia GeForce 940M)

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