preempt rt buster iso Mesa problem

Hello

I have been trying to get linuxcnc fresh install running.

Machine has been run with same pc and same mesacards before.
HW is 100% sure to work.
Ini files and hal files are ok, have been running this setup day ago.

Problem came after installing newer linuxcnc:
I have downloaded latest iso from linuxcnc.org --> LinuxCNC 2.8.0 Debian 10 Buster PREEMPT-RT ISO

Setup to PC goes smooth without any errors.
Linuxcnc axis sim runs fine, no problem.

But I can not get mesacards to run.
It gives following error:



I done this setup 3 times and it gives same error.
Any idea what goes wrong?

OK
That is odd, cause it is a livecd install?

But I will try it.

No help.
Linux was running with real-time mode.
And I get same error as before.


Is LinuxCNC 2.8.0 Debian 10 Buster PREEMPT-RT ISO compatible with 6i25-7i77 combo?

hello



Is LinuxCNC 2.8.0 Debian 10 Buster PREEMPT-RT ISO compatible with 6i25-7i77 combo of the box?

Hello

I tried to load hostmot2 and it gives error
Cannot gain I/O privileges...

The permissions issue is not really Mesa related (if would fail on parallel ports as well)

It looks like a LinuxCNC install problem of some kind but why don't others see the same issue?

Hello

I tried with other older PC and that one does not have this "cannot gain I/O privileges" problem.

Any ideal ?

Someone else had a similar issue:

forum.linuxcnc.org/9-installing-linuxcnc...i-o-privileges-error

Maybe BIOS settngs related?