Any got > 4 GPUs for Linux?

Discussion created by emuller on Jun 9, 2009
Latest reply on Aug 24, 2009 by riza.guntur

Hi All,

I have succeeded in configuring and using with CAL 2 4870x2s running Ubuntu 8.10 64bit, kernel 2.6.27-14-generic and Xorg 1.5.2 and catalyst 9.5. 

Adding further cards causes the system to freeze though the Xorg.0.log shows no serious errors or segfaults, which would be present if I were attempt to use Jaunty (see previous post: http://forums.amd.com/devforum/messageview.cfm?catid=328&threadid=112537&highlight_key=y&keyword1=jaunty .

aticonfig --lsa
* 0. 03:00.0 ATI Radeon HD 4870 X2
  1. 04:00.0 ATI Radeon HD 4870 X2
  2. 07:00.0 ATI Radeon HD 4870 X2
  3. 08:00.0 ATI Radeon HD 4870 X2
  4. 0e:00.0 ATI Radeon HD 4850 X2
  5. 0f:00.0 ATI Radeon HD 4850 X2

I have tried both an ASRock x58 deluxe and an MSI GD70-790fx motherboard, which should both fit 4 such cards in theory.


Might this be a linux driver issue, hardware issue, kernel version?


Thanks for any pointers ...