Correct software for Arch

[Snoopy]

no it is not, but as with other things, there are different major versions, for running hashcat it should be version 2.1 or above, other old versions like 1.2 are likely to cause trouble when running with hashcat

for that reason, if your hardware doesnt support opencl 2.1 or there is no package for your hardware to run opencl, is it tricky to find these legacy packages, but thats not a hashcat problem

i would try to do some very exact google searches like: radon XXX opencl 2.1 driver package for linux and see/hope that there are some hits other linux forums

OR just try using a more userfirendly distro like ubuntu (linux version of hashcat is coded under ubuntu) and not some poweruser thing like arch