Quote from: oioki on May 26, 2011, 10:30:57 AM

When I was using Ubuntu 10.10 and NVidia 260.19.36, there are no problems - poclbm was using only 0-5 %
Today I upgraded to Ubuntu 11.04 and fresh NVidia driver 270.41.19, and now poclbm (and phoenix too) are using up to 100% Sad

When I install old NVidia driver 260.19.36 on Ubuntu 11.04, poclbm is digging and "top" shows low cpu usage (0-5%), but unfortunately X server cannot starting complaining about "ABI version mismatch". Now I am on Ubuntu 11.04 with fresh driver, and also seeking for better solution... Maybe I'll have to go back to Ubuntu 10.10.

EDIT: videocard is - nVidia Corporation GT215 [GeForce GT 240] (rev a2) ~20.000 khash/s

I can confirm this problem too, new drivers 270... makes my cpu work more for nothing! I've downgraded to 260 and now it's fine. Thank you Wink

and about your ubuntu problem you should rmmod and modprobe your nvidia kernel module before restarting xorg, or reboot. It should fix your error.

Quote from: nased0 on June 03, 2011, 11:33:55 PM

IMHO this problem is caused by the OpenCL implementation in the driver, I am testing the RPC miner (CUDA) under Windows 7 and it works fine, with very small CPU usage (< 1%) and 80% of the poclbm efficiency (43 vs 55 mhash/s). [...]

I have GTX 275 and C2Q 9450 @ 2,66 GHz.

I've got a GTX 285 and the same CPU and got 60 Mhs on linux with poclbm (at max without Xorg). Do you think CUDA could change dramatically the performance? Something like > 65 Mhs?
EDIT: I've tested puddinpop's miner with CUDA and I'm getting less (45-55 Mhs and it has frozen my kernel!) than poclbm OpenCL at "low rate" (-f at 150 I get 56 Mhs) which allows me to use my computer without refreshing latency at all (if I whish I can set -f0 and mine at 60 Mhs without Xorg! How can it be better?).