Keyboard Jogging Problems!!!.

This also occurs with Qtplasmac. I can replicate it if I use the keyboard to jog and click to another tab while jogging. It loses focus/control even if I release the keyboard jog arrow and I have to go back to the main tab and tap a jog button again to get it to stop jogging.

Uthayne wrote:

This also occurs with Qtplasmac. I can replicate it if I use the keyboard to jog and click to another tab while jogging. It loses focus/control even if I release the keyboard jog arrow and I have to go back to the main tab and tap a jog button again to get it to stop jogging.

I never realized this. I can replicate.

I will definitely be working on a fix for this. "Stay tuned."

Fixed for Master branch:

github.com/LinuxCNC/linuxcnc/commit/96c8...87e2dc0a4165d3fc095f

Thank you for the bug report!

I'm running the standard Axis UI, with a Glade VCP side panel and a tab. (But I'm sure I was not using or touching the mouse at the time that the key sticking occurred, because I press the jog keys with the same hand that I use the mouse with.)

PS.  This really has the feel of a bug to me.  The older versions of LinuxCNC I had been using (2.7) running on RTAI kernel versions of Debian and Ubuntu, had never exhibited this kind of dangerous behavior.  I've seen some other people posting similar issues, did these problems start with the switch to GTK3 or might it be closer connected to the switch to Preempt RT or a later Debian version?

 I've seen some other people posting similar issues, did these problems start with the switch to GTK3 or might it be closer connected to the switch to Preempt RT or a later Debian version?

I'm not really competent to determine exactly what's going on, but I did look through old GH issues - and there are a number of similar reports over the years.  They go back to 2.7.

However, there may be two (or more) underlying problems which present the same - more or less - undesired behavior.

I get the sense that one of the scenarios involves switching tabs or otherwise changing window focus during a continuous jog.  At the very least, something other than just pressing/releasing a keyboard key is happening.

The other scenario is what the OP reports - no change in window focus, no pop-ups, nothing but a continuous jog even though the key is released.

The two scenarios may not have anything to do with each other beyond the end result.

My suggestion for the OP would be to turn off keyboard auto-repeat in Debian settings and see if the problem continues.  If the problem goes away this may point to a Debian change rather than an LCNC change.

snowgoer540 wrote:

This sounds like an autorepeat issue I've experienced in the past.

To test if it is, open a terminal window, and enter the following command:

Code:

xset -r

Launch LinuxCNC and jog around. If the problem goes away, that's the issue and we can come up with a more permanent solution.

To turn autorepeat back on:

Code:

xset r

Did this yield any results yet?