mesa card 5i25 kernel error

At this point I think too the problem is related to language package/phyton file of pncconfig (I not see trought pncconfig file ... I think that someone more expert can give me some response) .... but it's a very strange problem.

Anyhow the most problem is solved (serial error) and I can run my configmachine .... but a realtime error pops up every now and then .... something that did not happen with the old 2.6.3 ...... I study somethings about these trought grand-phader google ... or maybe I'll open a new post ...

MESA CARD WORKS!

Regards
Giorgio

realtime errors are not linuxcnc related , they are in most related to the version and kernel of the version of operating system & kernel you are using and are specific to the motherboard
this has nothing to do with linuxcnc , unfortunately what did work with an older release , can and will change as so do the requirements of motherboards .

the only real answer is to change to a more up to date motherboard and newer version of operating systems , this is progress , nothing you can do about it
sometimes we do not like this , but we can only change and keep moving forward .

it was not my intention to blame .... I just try LinuxCNC possible solutions .

The motherboard is the 2012 ... if debian 7.x I got decent latency test I would continue with that. Unfortunely latency test isn't so good .... Than I try to obtain a good result with ubuntu 10.04 .....

I think this is reasonable.

If this is impossible ... ok I change motherboard.

Regards
Giorgio

do not worry , we are here to help .

just sometimes being remote we need to ask questions , as we are not sitting next to you .
i will take a look at pncconf or Chris may , and we will check the translations , it may be that the file is not fully translated , so we may come back and ask

the difference is now Linuxcnc runs on debian and not as it used to on ubuntu , due to a number of issues . and changes for the better .

when using a mesa interface , the latency figures can mislead and due to the steps being generated on the interface and not a parallel port
and for a number of other reasons , it is not a definitive guide , use what works and does not give errors .

I try to upgrade the RAM capacity to 4Gb .... there is a little bit less hight the value of latency test on live cd. I try to install debian ....

If you (cncbasher) or PCW can suggest my a better motherboard (mini-itx form factor and cpu on board) for a better result with wheezy + 5i25 + 7i77 I can try it next monday.....

I don't think this is CPU related (a D2550 should be fine if a bit slow, if a D510 works a D2550 should be about the same)

BTW the 49 usec of latency with wheezy is probably fine for a servo or hardware step system

Mesa hardware can work OK with pretty bad latency (up to say 500 usec latency on a 1 KHz thread)
if encoder/stepgen sample retiming is done on the FPGA card via the DPLL