Jog sluggish in V2.6, wasn't a problem in 2.5
26 Nov 2014 21:55 #53447
by TonyZ
Jog sluggish in V2.6, wasn't a problem in 2.5 was created by TonyZ
Hi all,
I've been running LinuxCNC (installed from the 10.04 Ubuntu live CD) for several years, and it's performed great. Not wanting to lose the V2.5 installation, I decided to install V2.6 on a different hard drive to give it a try. So I wrote the binary.hybrid.iso image to a USB stick using Rufus, and Debian/LinuxCNC installed without a problem.
However, I noticed that when jogging, there is a noticeable lag from when I press/release a key until the machine moves/stops. For example, when I release a jog key, the machine keeps moving for almost a full second before it stops.
This PC originally had only 256MB ram, but I just upgraded it to 1GB, but the problem persists. FYI, my motherboard is an Intel D845EBG2 with a 2.2GHz Celeron.
Any help/advice would be greatly appreciated. Thanks.
Tony
I've been running LinuxCNC (installed from the 10.04 Ubuntu live CD) for several years, and it's performed great. Not wanting to lose the V2.5 installation, I decided to install V2.6 on a different hard drive to give it a try. So I wrote the binary.hybrid.iso image to a USB stick using Rufus, and Debian/LinuxCNC installed without a problem.
However, I noticed that when jogging, there is a noticeable lag from when I press/release a key until the machine moves/stops. For example, when I release a jog key, the machine keeps moving for almost a full second before it stops.
This PC originally had only 256MB ram, but I just upgraded it to 1GB, but the problem persists. FYI, my motherboard is an Intel D845EBG2 with a 2.2GHz Celeron.
Any help/advice would be greatly appreciated. Thanks.
Tony
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27 Nov 2014 06:49 #53469
by BigJohnT
Replied by BigJohnT on topic Jog sluggish in V2.6, wasn't a problem in 2.5
If this is an older motherboard you probably want to stick to older an OS.
JT
JT
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27 Nov 2014 21:19 #53482
by andypugh
I have seen this happen when I have feed-override set, though that is with a jogwheel which is probably a different situation.
If you set the display to commanded-position and see if that stops moving immediately, then look at actual-position and see if that copntinues to move then it is possible that what you are seing is a miss-match between jog-speed and actual axis max speed. Of course if you are jogging slowly it isn't that.
Replied by andypugh on topic Jog sluggish in V2.6, wasn't a problem in 2.5
However, I noticed that when jogging, there is a noticeable lag from when I press/release a key until the machine moves/stops. For example, when I release a jog key, the machine keeps moving for almost a full second before it stops.
I have seen this happen when I have feed-override set, though that is with a jogwheel which is probably a different situation.
If you set the display to commanded-position and see if that stops moving immediately, then look at actual-position and see if that copntinues to move then it is possible that what you are seing is a miss-match between jog-speed and actual axis max speed. Of course if you are jogging slowly it isn't that.
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