[PD] GUI freeze

Roman Haefeli reduzent at gmail.com
Sat Sep 23 14:07:07 CEST 2017

BTW, A friend of mine and me, we have been experiencing it on Linux and
on Windows with versions Pd 0.46 - 0.48.


On Fre, 2017-09-22 at 16:11 +0200, Johnny Mauser via Pd-list wrote:
> I have the same behaviour in Ubuntu 16.04 and pd 0.46
> The only workarround i found was to construct the gui in another
> instance.
> Am 22.09.2017 3:14 nachm. schrieb "Roman Haefeli" <reduzent at gmail.com
> >:
> Hey all
> Apologies for a somewhat vague bug report about a hard to reproduce
> issues (yeah, everybody loves those).
> I tend to create instruments for netpd with lots of visual feeback
> (song position in sequencer, triggered notes, automated values,
> meters). Sometimes during sessions with rather many instruments, it
> happens what I (only half-correctly) call a GUI freeze. Sliders,
> number
> atoms, symbol atoms, radios etc. stop visually reflecting any change.
> They still do send new values through their outlet, but are not
> updated
> visually, neither when manually changed or when sending new values
> through inlet or send symbol. When it happens, it affects all GUI
> widgets of all patches the running Pd instance. It usually happens
> after an error is printed to the Pd console:
>  (Tcl) INVALID COMMAND NAME: invalid command name ".x88d5c68.c"
>     while executing
> ".x88d5c68.c delete curve8cc3d94"
>     ("uplevel" body line 23)
>     invoked from within
> "uplevel #0 $docmds"
> Interestingly, when I minimize a canvas and unminimize (or switch
> desktop away and back) it again, it all widgets display the current
> values, though live changes are still not updated. Also not all
> properties of the GUI widgets are affected. Label texts, label fonts,
> background, foreground and label colors, also cnv dimensions and
> similar things are still updated. Or in other words: Those aspects
> that
> work both ways (GUI -> pd and pd -> GUI) are affected, while the
> supplemental features of the widgets that can't be controlled by
> mouse
> (pd -> GUI only) are not affected. The situation persists until I
> restart Pd. 
> That's again a vague statement, but I have the impression it got
> slightly worse when switching from 0.47 to 0.48. I'm not able to
> create
> a simple patch that triggers the GUI freeze. However, I have saved
> sessions that run reliably into this within minutes. 
> Thanks for any thoughts on this.
> Roman
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