ok some updates:
on the mining hardware (with 3 graphic chips) using the following command
./ptsminer -u <ptsadress> -t 3 -m 28 -o ptsmine.beeeeer.org -q 1337 -a gpuv4
it starts working but then crahes after some minutes - see screenshot:
using -a gpuv3 it works like a charm - starting at low c/m but then rising up
on my notebook with 512mb vram graphics i get the following output (identical behavior with "-a gpu"):
$ ./ptsminer -u <pts id> -t 1 -m 26 -o ptsmine.beeeeer.org -q 1337 -a gpuv3
********************************************
*** ptsminer - Pts Pool Miner v0.7 RC2 <experimental>
*** by xolokram/TB -
www.beeeeer.org - glhf
***
*** performance improvements by girino
*** if you like, donate:
*** PTS: PkyeQNn1yGV5psGeZ4sDu6nz2vWHTujf4h
*** BTC: 1GiRiNoKznfGbt8bkU1Ley85TgVV7ZTXce
*** thanks to wjchen for SSE4 improvements.
***
*** press CTRL+C to exit
********************************************
using GPU
spawning 1 worker thread(s)
[WORKER0] Hello, World!
[WORKER0] GoGoGo!
connecting to 54.201.26.128:1337
[MASTER] work received - sharetarget: 03ffffffffffffffffffffffffffffffffffffffffffffffffffffffbeefde4d
[STATS] 2014-Jan-16 23:41:43 | VL: 0 (0.0%), RJ: 0 (0.0%), ST: 0 (0.0%)
Platform: AMD Accelerated Parallel Processing
Device: ATI RV710
Device: Intel(R) Core(TM)2 Duo CPU U9400 @ 1.40GHz
Starting OpenCLMomentum V3
Device: ATI RV710
Max work group size: 128
ERROR: -48, CL_INVALID_KERNEL, if kernel is not a valid kernel object.
assertion "_MY_ERR_X == CL_SUCCESS" failed: file "OpenCLObjects.cpp", line 456, function: size_t OpenCLKernel::getWorkGroupSize(OpenCLDevice*)
Aborted