# Linux (UBUNTU) + AMD - which card to choose?

**URL:** <https://psychtoolbox.discourse.group/t/linux-ubuntu-amd-which-card-to-choose/3776>\
**Category:** Hardware\
**Created:** [March 23, 2021, 4:04pm UTC](https://psychtoolbox.discourse.group/t/linux-ubuntu-amd-which-card-to-choose/3776 "2021-03-23T16:04:28Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![Tarana](https://avatars.discourse-cdn.com/v4/letter/t/b77776/32.png) [@Tarana](https://psychtoolbox.discourse.group/u/Tarana)\
**Post date:** [November 3, 2022, 10:19pm UTC](https://psychtoolbox.discourse.group/t/linux-ubuntu-amd-which-card-to-choose/3776/7 "2022-11-03T22:19:22Z")

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Hi!  
I am also running Non-human primate electrophysiology experiments with ViewPixx(1920X1080@120Hz) with a Linux/X11 system. I want to mirror the display on the ViewPixx Monitor to another monitor (not the primary monitor- where I see the matlab window).  
I tried the `PsychImaging('AddTask', 'General', 'MirrorDisplayToSingleSplitWindow')` as suggested above with an extended monitor configuration. But unfortunately , it only displays on one of the screens. Could you let me know if my [X.org](http://X.org) config file is set up in the right way to get this mirroring to work ? Thanks a lot!

The following is my xorg.conf file :

# Auto generated xorg.conf - Created by Psychtoolbox XOrgConfCreator.

Section “ServerLayout”  
Identifier “PTB-Hydra”  
Screen 0 “Screen0” 0 0  
Screen 1 “Screen1” RightOf “Screen0”  
Screen 2 “Screen2” RightOf “Screen1”  
EndSection

Section “Monitor”  
Identifier “DisplayPort-0”  
EndSection

Section “Monitor”  
Identifier “DisplayPort-1”  
EndSection

Section “Monitor”  
Identifier “DisplayPort-2”  
EndSection

Section “Device”  
Identifier “Card0”  
Driver “amdgpu”  
Option “ZaphodHeads” “DisplayPort-0”  
Option “Monitor-DisplayPort-0” “DisplayPort-0”  
Screen 0  
EndSection

Section “Device”  
Identifier “Card1”  
Driver “amdgpu”  
Option “ZaphodHeads” “DisplayPort-1”  
Option “Monitor-DisplayPort-1” “DisplayPort-1”  
Screen 1  
EndSection

Section “Device”  
Identifier “Card2”  
Driver “amdgpu”  
Option “ZaphodHeads” “DisplayPort-2”  
Option “Monitor-DisplayPort-2” “DisplayPort-2”  
Screen 2  
EndSection

Section “Screen”  
Identifier “Screen0”  
Device “Card0”  
Monitor “DisplayPort-0”  
EndSection

Section “Screen”  
Identifier “Screen1”  
Device “Card1”  
Monitor “DisplayPort-1”  
EndSection

Section “Screen”  
Identifier “Screen2”  
Device “Card2”  
Monitor “DisplayPort-2”  
EndSection

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