How to reset Ardour graphics?

I just met a very strange problem, while pressing mistakenly the Z key a few times my GUI went crazy (Ardour 6.7.0):

Thought it would be ok restarting Ardour but it remains the same. Tried changing track mode layered/overstacked, showing and hiding automation, starting from safe mode, nothing works. Please tell me there is a way to fix this :frowning:

I’ve never seen this before, can you share the .ardour session file. That should be enough to investigate.

Hi Robin, thank you for replying, here is the .ardour file:

I also see “Ignored automation data for non-automatable parameter” several times repeated in log window.

Reproduced. Now this is one of the weirdest things I’ve seen… You broke our software! :slight_smile:

Select all tracks (Ctrl+t), then right-click on any track-header > Height > Normal.

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If you look in the session file, there are 12 invalid track-heights:

grep 'height="4294967288"' Tirano.ardour prints

<Object id="rtav 11930" height="4294967288" visible="1" layer-display="Overlaid"/>
<Object id="rtav 2016991" height="4294967288" visible="1" layer-display="Overlaid"/>
<Object id="rtav 2023085" height="4294967288" visible="1"/>
<Object id="rtav 2315595" height="4294967288" visible="1"/>
<Object id="rtav 2317701" height="4294967288" visible="1" layer-display="Overlaid"/>
<Object id="rtav 2381187" height="4294967288" visible="1" layer-display="Overlaid"/>
<Object id="rtav 2381237" height="4294967288" visible="1" layer-display="Overlaid"/>
<Object id="rtav 2442324" height="4294967288" visible="1" layer-display="Overlaid"/>
<Object id="rtav 3772214" height="4294967288" visible="1"/>
<Object id="rtav 3934214" height="4294967288" visible="1" layer-display="Overlaid"/>
<Object id="rtav 3934862" height="4294967288" visible="1" layer-display="Overlaid"/>
<Object id="rtav 5974317" height="4294967288" visible="1"/>

I’ve replaced them with sed 's/4294967288/110/' Fixed session file: http://robin.linuxaudio.org/tmp/Tirano.ardour.gz

I have a few guesses how this could have happened. e.g. select many tracks, then shrink their height via click+drag on the tallest. Some others end up with a height less than zero, (here -8 which is then stored as unsigned integer). But I tried to reproduce this but was not yet able to do that. Maybe groups and group-selection also play a role …?
Please keep an eye out in case you find a recipe how to produce this again.

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Thank you so much for your time Robin, I’ll try your fix later at home. As I recall I was just misspressing “Z” a few times, I have binded “snap/no snap” to </> which is the key right next to Z… and as Z changed somewhat the focus (it is zoom track right?) I then readjusted with alt+scroll wheel, that was all.

I feel the strangest pride right now :sweat_smile: :sweat_smile: :sweat_smile: :cowboy_hat_face:

Everything working fine now, thanks!

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