It is possible to use a apu and a discrete nvidia together

[n_lona]

If you don't know how to build from source, then grab the binary distribution from https://hashcat.net/beta/

thanks a lot never I have never seen the beta dir

edit:
Only to show that what you meant works:

Code:

mp64.bin -i 13:13 -q 3 -r 6 ?1?1?1?1?1?1?1?1?1?1?1?1?1 -1 ?u|./oclHashcat-2.10/oclHashcat64.bin -m 2500 InfostradaWiFi-811716.hccap --force
oclHashcat v2.01 (g5f05fbf) starting...

Device #1: Devastator, 203/812 MB allocatable, 760Mhz, 4MCU
Device #2: AMD A8-5500 APU with Radeon(tm) HD Graphics, skipped
Device #3: GeForce GT 710, 511/2047 MB allocatable, 954Mhz, 1MCU

WARN: ADL_Overdrive6_FanSpeed_Get(): -1

Hashes: 1 hashes; 1 unique digests, 1 unique salts
Bitmaps: 16 bits, 65536 entries, 0x0000ffff mask, 262144 bytes, 5/13 rotates
Rules: 1
Applicable Optimizers:
* Zero-Byte
* Single-Hash
* Single-Salt
Watchdog: Temperature abort trigger set to 90c
Watchdog: Temperature retain trigger disabled

Device #1: Kernel /home/hp/oclHashcat-2.10/kernels/m02500.3ef43359.kernel not found in cache! Building may take a while...
Device #1: Kernel /home/hp/oclHashcat-2.10/kernels/amp_a0.3ef43359.kernel not found in cache! Building may take a while...