Unable to run multiple Nvidia cards in one instance on Ubuntu

[s2n-Gribbly]

Hi,

If I run the miner with multiple Nvidia cards on Ubuntu, I only get 1 card actually mining.

If I run without the -nvidia-fix, what I see is this:

··· 00:58:04|xdag-gpu New task: t=16bae88ffff N=1
m 00:58:06|xdag-gpu Speed 1008.65 Mh/s u/0 504.33 u/1 504.33
m 00:58:10|xdag-gpu Speed 1007.84 Mh/s u/0 503.92 u/1 503.92

The cards report the same hash rate, and only one card's worth ever shows at the pool.

If I run with the -nvidia-fix, I see this:

··· 00:57:40|xdag-gpu New task: t=16bae87ffff N=1
m 00:57:42|xdag-gpu Speed 605.19 Mh/s u/0 504.33 u/1 100.87
m 00:57:46|xdag-gpu Speed 523.87 Mh/s u/0 503.72 u/1 20.15
m 00:57:50|xdag-gpu Speed 503.71 Mh/s u/0 492.51 u/1 11.19
m 00:57:54|xdag-gpu Speed 493.60 Mh/s u/0 493.60 u/1 0.00

It appears that card '1' is not being fed any new work?

Any ideas what could be causing this. I have tried on multiple rigs and see the same behaviour.

Thanks,