I just installed Precise on a Gigabyte E350N WIN8 board.. $69 from Amazon. I followed the instructions that Seb posted, with the additions I documented below. As before, the grub menu has the RTAI kernel on the second page. Grub customizer made quick work of that problem. Latency jitter is about 12-14 microseconds max even running Youtube video with 3 instances of GLXGEARS running. I left the video setup as it was installed and it works fine on a full HD 1080 screen. I had to change the BIOS setting for the LPT port to EPP. But a Mesa 7i43 card was quickly recognized.. Looks like a winner. Now if I can get my head wrapped around Ubuntu 12.04 and all of the changes ... and "improvements". :-/
Dave On 1/21/2014 6:07 PM, Dave Cole wrote: > I just installed the master-rt version on an Intel D525MW board based > system. > > I had the same problem as some of the other folks; the grub RTAI > kernel entry was on the second page under "old kernels" or something > similar. > > I have wrestled with Grub before and lost, so I loaded a software > package to tweak grub. > http://www.unixmen.com/install-grub-customizer-4-0-4-ubuntu-linux-mint-pear-os-elementary-os/ > > > > That let me reorder the entries in the configuration and also add > isolcpus=1 to the end of the kernel load line.. > Highly recommended to avoid heart burn with grub. > > I also had to remember to turn hyperthreading off in the bios.. > > I had this board plugged into a HD screen but the graphics would not > display in hi-res and after poking around for a bit I realized that > Ubuntu thought I had two screens and that the computer was a laptop. > (I found this was a common problem with Ubuntu 11.x and this board > also..) So I disabled the second mystery screen and turned off the > laptop switch. Still the screen driver was causing big time latency > problems. Close a window and the latency numbers went to ridiculous > levels. > > I found a bash shell script on an Intel website to load the drivers > that support graphics and Ubuntu 12.04 (which they now consider to be > obsolete for some reason..) I ran the script, rebooted and the that > allowed me to run the screen in full 1920x1080, which is really not > required, but that way I knew the driver was working ok. > > With Glxgears running in several different instances the latency > numbers are as good as they were with 10.04, perhaps even better. > What does seem to be a problem is running a browser via an ethernet > connection to the web. That jacks up the latency numbers somewhat. > But this machine will not be used to browse the web while running the > machine so not an issue for me. > > The D525MW board does have the RealTek 8111E Ethernet chipset that is > reported to cause problems. Perhaps the latency suffers due to the > erratic behavior of the 8111?? I don't know. I could not notice > any Ethernet issues when surfing the web. > > I didn't make any attempt to load the VESA video drivers as the Intel > one seems to be working fine. > > So it looks like this is a good solution for running LinuxCNC on > Ubuntu 12.04... :-) > > I also did an apt-get install hostmot2-firmware-all and that went > nicely. > > Nice work! :-) > > Next, I have a Gigabyte E350N board that I am going to try running > 12.04 on as the Intel D525MW boards are beginning to get scarce. > > Dave > > On 1/10/2014 2:37 PM, JohnBannister wrote: >> You may be interested in the mistake I made in installing LinuxCNC on >> Precise. I downloaded the iso from >> http://www.ubuntu.com/download/desktop and chose the 32 bit version. >> When I installed it on a spare desktop (a old Celeron unknown computer) >> I found I had installed Lubuntu. I then installed the RTAI kernal as >> per the instructions and all works fine except I get a message when I >> try to install updates saying "untrusted source" and the update closes, >> and the Grub order problem. >> Pavel Shramov has updated the camview-emc repository to include Precise >> . When adding the repository to the source list I noticed the only other >> precise entry was for linuxCNC I then checked my version and found it >> was 12.10 Quantel. My machine seems to work fine. >> Regards John >> >> >> ------------------------------------------------------------------------------ >> >> >> CenturyLink Cloud: The Leader in Enterprise Cloud Services. >> Learn Why More Businesses Are Choosing CenturyLink Cloud For >> Critical Workloads, Development Environments & Everything In Between. >> Get a Quote or Start a Free Trial Today. >> http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk >> >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Android apps run on BlackBerry 10 Introducing the new BlackBerry 10.2.1 Runtime for Android apps. Now with support for Jelly Bean, Bluetooth, Mapview and more. Get your Android app in front of a whole new audience. Start now. http://pubads.g.doubleclick.net/gampad/clk?id=124407151&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
