Verification failed, check hardware!

[bitminer]

I'm useing poclbm under Ubuntu with one HD5970 and I’m getting always the following error message after starting mining with the second core (./poclbm.py -d 2):
”Verification failed, check hardware!”
  (With the first GPU core (./poclbm.py -d 1) everything works fine.)
Is my GPU damaged or is this a software/setting bug?
How could I test under Ubuntu that both of my GPU cores are ok? 

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[1715088209]

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[[Tycho]]

I'm useing poclbm under Ubuntu with one HD5970 and I’m getting always the following error message after starting mining with the second core (./poclbm.py -d 2):
”Verification failed, check hardware!”
  (With the first GPU core (./poclbm.py -d 1) everything works fine.)
Is my GPU damaged or is this a software/setting bug?
How could I test under Ubuntu that both of my GPU cores are ok? 

You should disable Crossfire or use old version of poclbm on Windows.

[SmokeTooMuch]

0 is cpu I guess

[error]

CPU is not listed at all with poclbm on my Linux box.

[bitminer]

Code:

$ ./poclbm.py

[0]	Intel(R) Core(TM) i7 CPU         870  @ 2.93GHz
[1]	Cypress
[2]	Cypress

$ aticonfig --crossfire=off --adapter=all
CrossFire chain(s) disabled
Warning: X needs to be restarted before CrossFire changes take effect.

$sudo /etc/init.d/gdm restart
(restart ok)

$ ./poclbm.py -d 2

284326 khash/s

Verification failed, check hardware!

Verification failed, check hardware!

Verification failed, check hardware!

 

The first core running perfectly:

Code:

./poclbm.py -d 1 
284379 khash/s 

What's wrong with the second core?
Can I test it somehow if it's not damaged physically?

[Tril]

I have the same problem with -d 2 and Verification failed.  I'm on Debian Squeeze instead of Ubuntu.

The issue is this:

1. disabling crossfire requires restarting X.
2. restarting X automatically re-enables crossfire every time- to verify this, run:
sudo aticonfig --lscs
sudo aticonfig --lsch