Windows build no opencl devices

[kevtheskin]

Hello there,
Can someone help me get John working on my Win10 pro please This is the build
Version: 1.8.0.13-jumbo-1-bleeding-1f1a862 2019-01-31 23:28:54 +0100
Build: cygwin 64-bit x86_64 AVX2 AC OMP
SIMD: AVX2, interleaving: MD4:3 MD5:3 SHA1:1 SHA256:1 SHA512:1
CPU tests: AVX2
CPU fallback binary: john-xop
OMP fallback binary: john-avx2-non-omp
$JOHN is
Format interface version: 14
Max. number of reported tunable costs: 4
Rec file version: REC4
Charset file version: CHR3
CHARSET_MIN: 1 (0x01)
CHARSET_MAX: 255 (0xff)
CHARSET_LENGTH: 24
SALT_HASH_SIZE: 1048576
SINGLE_IDX_MAX: 2147483648
SINGLE_BUF_MAX: 4294967295
Effective limit: Number of salts vs. SingleMaxBufferSize
Max. Markov mode level: 400
Max. Markov mode password length: 30
gcc version: 6.4.0
OpenCL headers version: 2.2
Crypto library: OpenSSL
OpenSSL library version: 01000210f (loaded: 0100020ef)
OpenSSL 1.0.2p 14 Aug 2018 (loaded: OpenSSL 1.0.2n 7 Dec 2017)
GMP library version: 6.1.2
File locking: fcntl()
fseek(): fseek
ftell(): ftell
fopen(): fopen
memmem(): System's
Section [opencl-device] not found.
help[:WHAT], subformats, inc-modes, rules, externals, ext-modes, ext-hybrids,
ext-filters, ext-filters-only, build-info, hidden-options, encodings,
formats, format-details, format-all-details, format-methods[:WHICH],
format-tests, sections, parameters:SECTION, list-data:SECTION,
opencl-devices,
Does not see my Gpu
I am running a Nvidia 1080 card which works fine with hashcat. Anyhelp would be much appreciated thanks. Kev

[claudioandre-br]

Well, here is not a support forum. But, since you are using (what I call) the Windows package, I have to ask for more information.

• the message Section [opencl-device] not found seen above suggests a typo in the command line. It should be (note the S):

john --list=opencl-devices

Please, try that. If things are not Ok, I will open a new issue to handle it.

Thanks

---

PS: do you have a file named nvopencl.dll installed in your computer?

[kevtheskin]

Hi there sorry for asking this question. I know its not a forum as such but where else can us noobies get help.
Any here is the result to your string
C:\Users\Kevo\Desktop\win_x64\run>john --list=opencl-devices
Error: No OpenCL-capable platforms were detected by the installed OpenCL driver.
Error: No OpenCL-capable devices were detected by the installed OpenCL driver
Hashcat works ok with Gpu
Cheers Kev

[claudioandre-br]

but where else can us noobies get help?

• if you need support as an end-user, ask for help on the mailing list john-users at lists.openwall.com (make sure you set a descriptive message Subject when you post).

Please, try to see what *opencl*.dll files you have installed on your system (use the Windows find files).

---

But it is Interesting. Why people are not aware of the list? Solar?

[kevtheskin]

opencl.dll v2.21.0 9 in total 32/64

Kev

[kevtheskin]

3x nvopencl32.dll and 3x nvopencl64.dll all located in the FileRepository

Cheers Kev

[claudioandre-br]

Fixed upstream claudioandre-br/packages@dd1c6a3

[kevtheskin]

Fixed upstream claudioandre-br/packages@dd1c6a3

Hello Claudio thanks for your time. Is this the fix for not seeing my Gpu if so how do I use it. Cheers Kev

[claudioandre-br]

• Edit the file C:\Users\Kevo\Desktop\win_x64\etc\OpenCL\vendors\nvidia.icd
• Change nvopencl.dll to nvopencl64.dll

[magnumripper]

But it is Interesting. Why people are not aware of the list? Solar?

Because mailing lists are "so 1990", and many of these users weren't even born back then.

[kevtheskin]

* Edit the file `C:\Users\Kevo\Desktop\win_x64\etc\OpenCL\vendors\nvidia.icd `

* Change `nvopencl.dll` to `nvopencl64.dll`

Hello Claudio thanks for this but still the same error
C:\Users\Kevo\Desktop\win_x64\run>john.exe --list=opencl-devices
Error: No OpenCL-capable platforms were detected by the installed OpenCL driver.
Error: No OpenCL-capable devices were detected by the installed OpenCL driver

[claudioandre-br]

I have to try to reproduce your environment.

• Meanwhile, you should check if the location of the library is correct, try to use nvopencl32.dll, etc.