Sheldon, I'm suffering the same issue with my laptop Dell C610 and have also fixed the SMI latency problem the same way. Have you however tested EMC with your Dell laptop in a real machine? Even with the latency issue resolved that way, I have not been able so far getting my mill machine working properly. Moves are very erratic and making a lot of rough noise from the stepper motors. I was thinking about other unknown problems with this particular laptop but now, looking to the emails in this list, there apparently are other configuration issues with stepconf.
Jesus ----- Original Message ----- From: "Sheldon Stokes" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Sunday, December 09, 2007 3:57 AM Subject: [Emc-users] A quick fix for laptop latency issues > I'm not sure if this works for all laptops, but... > > I have a Dell D600 laptop that I am using with my Taig mill and DIY > stepper drivers. I have used Mach3 under Windows with this laptop > successfully with low latencies (by not using the ACPI driver). So I > knew it was possible to use this hardware to do what I wanted to do. > > Using latency-test, I was seeing good results for a while, but every > 10-20 seconds I would get a huge latency (700,000 nS). If I tapped the > lid close button the latencies would climb into the 1 second region. I > tried acpi=off as a kernel argument, and tried unloading modules etc. > I found that if I pull out the battery the latency issues disappear. I > have since used the SMI fix > (http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?FixingDapperSMIIssues > ) and it allows me to keep the battery in. For somebody who wants to > try the live CD or isn't comfortable recompiling it's a quick fix that > will get you running. > > > Sheldon > > ------------------------------------------------------------------------- > SF.Net email is sponsored by: > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services for > just about anything Open Source. > http://sourceforge.net/services/buy/index.php > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
