How to have two frame buffer with two graphic cards

[gil390]

Hi,

Two graphic cards are plugged to my computer:
$ lspci | grep VGA
01:00.0 VGA compatible controller: NVIDIA Corporation GF119 [GeForce GT 520] (rev a1)
02:00.0 VGA compatible controller: NVIDIA Corporation NV43GL [Quadro FX 540] (rev a2)

I would like two framebuffers (one for each card) into /dev. Is it possible ?
Actually, only one is present: /dev/fb0

I think it is a VESA Framebuffer, how to verify this and how to know to which card is linked this device ?

Thank you very much for your help.

best regards,
Gil

[charles17]

With -k option lspci will show the drivers for each device

[gil390]

Hi,
thank you for your hlp.

Here result of lspci -k :

01:00.0 VGA compatible controller: NVIDIA Corporation GF119 [GeForce GT 520] (rev a1)
Subsystem: Device 196e:0915
Kernel modules: nouveau

02:00.0 VGA compatible controller: NVIDIA Corporation NV43GL [Quadro FX 540] (rev a2)
Subsystem: NVIDIA Corporation Device 020d
Kernel modules: nouveau