On 05/11/2017 12:28 PM, Todd Zuercher wrote: > ----- Original Message ----- >> From: "Jon Elson" <[email protected]> >> To: "Enhanced Machine Controller (EMC)" <[email protected]> >> Sent: Thursday, May 11, 2017 12:58:08 PM >> Subject: Re: [Emc-users] Installing On Older Computer >> >> On 05/10/2017 10:22 PM, Todd Zuercher wrote: >>> Latency is fine with Lucid(RTAI). With Wheezy(RTAI) the >>> latency test will not even open, it just hangs with >>> nothing coming up in the terminal window, but the pc >>> itself still keeps going (can open other programs). >> OK, there's the problem. Something is really wrong in the >> RT system, or maybe just the CPU is being slowed down >> drastically for some reason. The drivers for certain >> graphics cards can do bad things, but that usually requires >> a graphical display to be running. >> >> Jon >> > It is only running with on board video (no video cards), there is a display > attached. > > If I boot from the Linuxcnc live Wheezy ISO (using a USB thumb drive). It > eventually boots and opens a desktop. If I open a terminal window and type > Linuxcnc. The config picker opens, I select something, then nothing else > seems to happen. The computer is not locked up, I can open and do other > things, but no word of anything from Linuxcnc, and the terminal window is > blank. (going from memory here, as the machine is running production work > now.) The same thing happens with the latency test. > > I know there is something very wrong. But I don't know were to even look to > find out what. > This sounds like a real time overload, using up 100% of the CPU time. You could try slowing the RT threads down to something like 1/10th the rate (multiply bast thread and servo thread period X 10) and see if it works. But, then, it would be best to find out what the real problem is. First, do more /proc/cpuinfo
and see what the bogomips reading is, and if it seems correct for the processor and clock speed. Jon ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
