oclHashcat without window manager

[Kuci]

Hello, on hashcat wiki is written that since Catalyst 12.9 Beta it's possible to run OCL powered apps without running window manager and it'd increment performance exactly about 50%. Well, I've tried it on X11 and LightDM and no luck. I've tried Catalyst 12.10 and 12.11 Beta and everytime I stopped WM and wanted to start benchmark, it showed me error such as clGetDeviceIds() -1 or clGetPlatformId() -1. What should I do to make it working ?

[atom]

The main problem is that all drivers > catalyst 12.8 are very unstable (and slow). So you should stick to catalyst 12.8. Btw, X11 is not decreasing your cracking rates.

[Kuci]

Good to know. Thank you for your answer. But, this is a problem. The lowest version of Catalyst I can install is 12.9 Beta, becouse of my kernel version. I have Ubuntu 12.10 (linux 3.5) on my desktop and Arch linux (linux 3.6.8) on my server. Is there any workaround to make Catalyst 12.8 works at least on linux 3.5 ?

[pragmatic]

It is strongly recommended that you use use Ubuntu 12.04 LTS which will allow you to use 12.8. This seems to be something of a standard around here, so you'll be better off if you stick with that.

[epixoip]

just because you need to run x11 doesn't mean you need to run oclHashcat from within a window manager. you can still run it at console if you export the appropriate display.

[Kuci]

Well, I've installed Ubuntu Server 12.04, xserver and xterm, and on NTLM it was only about 0.27% faster than on my KDE

[atom]

The speed loss is mainly on SHA1 based algorithms, not MD4.

[Kuci]

Oh, Ok. Now, it's clear to me. Thank you.

// EDIT: For SHA1 it's ~0.8%