Question

9

external GPU system in Linux?

rated 0 times [ 9] [ 0] / answers: 1 / hits: 26120 / 2 Years ago, sun, august 28, 2022, 12:07:53

Has anybody got any idea what would be needed to have a working external GPU system (eGPU) under Linux? I've just seen this post of a DIY eGPU system:

http://forum.tabletpcreview.com/hardware/40268-diy-egpu-tablet-pcs-experiences-benchmarks-setup-ect.html

I found this mentioned which I think is also relevant:

My system has switchable graphics. Can I still do a eGPU?

Yes you can. Setup 1.x's (Video card->Hybrid Graphics.dedicated=off)
allows the dedicated graphics component to be completely disabled on
Series-5 or older chipsets, freeing up 32-bit resources to host the
desktop eGPU. If your primary video card is a Intel 4500MHD, HD or
HD3000 then can even do a x1.Opt NVIDIA setup.

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

fenddy

Add To Favorites

Follow

Total Points: 361

Total Questions: 103

Total Answers: 113

Location: Turkmenistan

Member since Sun, Aug 2, 2020

4 Years ago

fenddy questions

1 I'm having trouble connecting to a vpn with strongswan. What's stopping me?

Thu, Feb 23, 23, 15:00, 1 Year ago

1 Lenovo trackpoint stops working randomly

Tue, Nov 22, 22, 10:11, 1 Year ago

1 Decoding failed --system halted

Tue, Sep 27, 22, 09:16, 2 Years ago

1 Ubuntu 20.04 GPU Not Found

Wed, Dec 28, 22, 13:09, 1 Year ago

1 Autologin on UbuntuStudio 21.04

Fri, Jun 18, 21, 14:04, 3 Years ago

View All

answered 2 Years ago termetalli · Accepted Answer

I can confirm that it works in 12.04. Tested with PE4H + EC2C on a Thinkpad X220, using an Nvidia GTX 560 Ti. The tricky part was getting a working xorg.conf.

I needed the Nvidia drivers:

sudo apt-get install nvidia-current

You need to find the correct PCI bus for the graphic card.

lspci gave me:

05:00.0 VGA compatible controller: NVIDIA Corporation GF110 [GeForce GTX 560 Ti] (rev a1)

So in the "Device" section of xorg.conf, I set:

Section "Device"

    Identifier     "Device0"

    Driver         "nvidia"

    BusId          "PCI:5:0:0"

    VendorName     "NVIDIA Corporation"

EndSection

Then use nvidia-settings after a reboot or an Xorg restart to configure the monitor(s) resolution(s).

It should be noted that it works much better in Windows than Linux and I had to disable Compiz because it lagged so much. I will update if I can get both cards (HD3000 + Nvidia) at the same time.