Gmoccapy scaling up each time you exit tool table - 2.9.8 trixie

  • RotarySMP
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02 Apr 2026 20:27 #345077 by RotarySMP
Hi Guys,

I updated my lathe to 2.9.8 on Trixie with RTAI. Now Gmoccapy appears to have a bug causing it to scale up each time you exit the tool table or the max preview. window size setting also doesn't work correctly, as the screen reduces in height when commanded to increase in either width or height.

I made a video to show the behavior. 


Like this, the lathe is nearly unusable, as I have to keep shutting down and restarting LinuxCNC to reset it. Any suggestions how to correct this greatly appreciated.
Cheers,
Mark

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  • tommylight
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02 Apr 2026 20:54 #345082 by tommylight

I updated my lathe to 2.9.8 on Trixie with RTAI.

I read that and thought "RTAI, resolution issues....", but nooo, you had to find something i have never seen, and it irrevocably seems a GmoccaPy issue.
This keeps reminding me of an American saying: never change a wining horse.
I am i am not helping.
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02 Apr 2026 21:17 #345083 by RotarySMP
Yeah, you warned me.

After I tried to update 2.8.2 I screwed something up, and decided I may as well then pull the SSD and do a clean install. 
If this is not easily fixible, I guess I could do a clean install of 2.8. and wheezy.
Cheers,
Mark
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  • rodw
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02 Apr 2026 22:31 #345086 by rodw
RTAI? isn't your lathe using a Mesa card?
Why RTAI?

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