oclHashcat-* cannot utilise 2nd HD7970
#1
Hi,

I am running ubuntu 12.04 with Catalyst 12.10 and AMDAPP installed successfully.
currently have 2 x HD7970s installed, but plan to fill this ASUS Maximus V Extreme with another two when funds allow AND if I can ensure that I can successfully use more than one GPU... aiming for most efficient/effective system money can buy without going to server-grade gear.

Both oclHashcat-plus and oclHashcat-lite are working nicely, but only recognising one card with crossfire disabled from the Catalyst Control Centre. When I enable crossfire, oclHashcat* seems to initialise, recoginising both cards, but then ubuntu completely locks up and I have to perform a hardware reset.

// 'aticonfig --lsa' produces the following:

* 0. 01:00.0 AMD Radeon HD 7900 Series
1. 02:00.0 AMD Radeon HD 7900 Series

* - Default adapter


// 'fglrxinfo' produces the following:
display: :0.0 screen: 0
OpenGL vendor string: Advanced Micro Devices, Inc.
OpenGL renderer string: AMD Radeon HD 7900 Series
OpenGL version string: 4.2.11931 Compatibility Profile Context

It must be something simple to get the other GPU working surely! I remember reading somewhere about needing dummy DVI plugs for the secondary cards, but haven't found that article/can't remember if it was related to hashcat or pyrit.

Thanks in advance,
mostofmonty

PS any hardware tips/advice would also be welcome - this system is a work in progress! Smile


Messages In This Thread
oclHashcat-* cannot utilise 2nd HD7970 - by mostofmonty - 10-28-2012, 03:25 PM