Arch Linux

sweinberg

Member

Registered: 2016-08-09

Posts: 3

Intel GPU and nVidia SLI

Hello,

This week I've installed Arch on my laptop, a Lenovo Y510P with dual GTX 755M in SLI and a Core i7-4700MQ which in principle has Intel® HD Graphics 4600. The problem is the following, when I run

lspci | grep -i vga

only one device shows up

01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT 755M] (rev a1)

And I was also interested in using bumblebee but no intel graphics appear, even when I go through all the lspci output.

However, the nvidia-settings gui and

sudo lshw -C video

do detect both of them

*-display UNCLAIMED       
       description: VGA compatible controller
       product: GK107M [GeForce GT 755M]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller bus_master cap_list
       configuration: latency=0
       resources: memory:d3000000-d3ffffff memory:a0000000-afffffff memory:b0000000-b1ffffff ioport:5000(size=128) memory:d4080000-d40fffff
  *-display UNCLAIMED
       description: 3D controller
       product: GK107M [GeForce GT 755M]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:07:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: latency=0
       resources: memory:d2000000-d2ffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:4000(size=128)

Moreover, when I use nvidia-xconfig with SLI and MultiGPU on startx hangs all the machine.

Thank you in advance

fpadula

Member

Registered: 2016-08-14

Posts: 2

Re: Intel GPU and nVidia SLI

I'm having the exact same problem. I also have a y510p and can't seem to get SLI working properly.
Any help would be greatly appreciated.

sweinberg

Member

Registered: 2016-08-09

Posts: 3

Re: Intel GPU and nVidia SLI

I'm having the exact same problem. I also have a y510p and can't seem to get SLI working properly.
Any help would be greatly appreciated.

Hi,

It is very nice to hear that. Can you reproduce my exact problems with the above commands? (Both of them).

Let us see if we can get some help over here.

fpadula

Member

Registered: 2016-08-14

Posts: 2

Re: Intel GPU and nVidia SLI

Sure, my output from:

lspci | grep -i vga

is:

01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT 755M] (rev a1)

And from:

sudo lshw -C video

is:

  *-display                 
       description: VGA compatible controller
       product: GK107M [GeForce GT 755M]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
       configuration: driver=nvidia latency=0
       resources: irq:34 memory:d3000000-d3ffffff memory:a0000000-afffffff memory:b0000000-b1ffffff ioport:5000(size=128) memory:d4080000-d40fffff
  *-display
       description: 3D controller
       product: GK107M [GeForce GT 755M]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:07:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: driver=nvidia latency=0
       resources: irq:35 memory:d2000000-d2ffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:4000(size=128)

nvidia-settings also detects both of my gpus.
Setting

Option         "SLI" "auto"

or

Option         "SLI" "on"

in xorg.conf makes arch hang on boot. I'll reproduce the error and try to get something usefull out of journal and post here.

sweinberg

Member

Registered: 2016-08-09

Posts: 3

Re: Intel GPU and nVidia SLI

Okay thank you. Would it be possible to obtain any other info via dmesg or something else?