On Tue, 18 Nov 2014, alex chiosso wrote: > As I understood the isolcpus=1 (for a dual core processor) is "mandatory" . > I you have multiple cores 4 or 8 (but you shouldn't) there is a different > isolcpus setting to optimize the RTAI results (aka latency). > Have you tried to let the GPU drivers as the installation process load > automagically. > I do believe that 1GB RAM maybe is the lower limit to get the new > installation working properly. > I'm not an expert so sorry if I'm not so effective on helping you. ;-) > > Alex > > On Tue, Nov 18, 2014 at 5:16 PM, <kqt4a...@gmail.com> wrote: > >> On Tue, 18 Nov 2014, alex chiosso wrote: >> >>> What about RAM ? (How many GB do you have?) >>> I do believe that with the new installation you are no more running with >>> the vesa driver . >>> Can you double check this ? >>> Did you already make the isolcpus=1 modification ? >>> I hope it is not a kernel issue due to the old hardware . >>> >>> Alex >>> >>> On Tue, Nov 18, 2014 at 4:26 PM, <kqt4a...@gmail.com> wrote: >>> >>>> I have been using Ubuntu 10.04 with LinuxCNC for about 3 years with very >>>> good results. I downloaded http://linuxcnc.org/binary.hybrid.iso with >> the >>>> thought of upgrading. I installed it to a new drive. I can startup and >> run >>>> ok until I try to run any of the LinuxCNC apps. The machine does not >>>> immediately lock up but slowly locks up over about 1 minute. I am not >> able >>>> to switch to a console or run any other commands. This is a pretty old >>>> machine and would prefer keep it running, I'm cheap. I would consider a >>>> new one but from the back and forth on this list I have no idea what >>>> works. Suggestions please. >>>> >>>> motherboard: K8T890-A >>>> processor: Athlon 64 2200 >>>> video: ATI Technologies Inc RV516 [Radeon X1300/X1550 Series] with vesa >>>> driver >>>> old kernel: 2.6.32-122-rtai >>>> new kernel: 3.4-9-rtai-686-pae >>>> >>>> Richard >>>> >> >> 1 GB ram >> I am running the vesa driver, I forced it with nomodeset >> Do I need isolcpus=1 with a single core processor >>
I originally allowed the Radeon driver to load but switched to vesa which is what I use on 10.04. Thanks for the try. ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
