Comment 5 for bug 1462081

Linux mint 19 tara x86
CPU~Dual core Intel Core2 Duo T7500 (-MCP-) speed/max~1645/2200 MHz Kernel~4.15.0-39-generic x86_64
Graphics: Card: Intel Mobile GM965/GL960 Integrated Graphics Controller (primary)
           Display Server: x11 (X.Org 1.19.6 )
           drivers: modesetting (unloaded: fbdev,vesa)
           Resolution: 1280x800@59.91hz
           OpenGL: renderer: Mesa DRI Intel 965GM version: 2.1 Mesa 18.0.5
Audio: Card Intel 82801H (ICH8 Family) HD Audio Controller
           driver: snd_hda_intel
           Sound: Advanced Linux Sound Architecture v: k4.15.0-39-generic

Windows 7 Ultimate x86 fully updated

Mixxx: 2.3.0-alpha-pre (build master r6644) used mostly for radio broadcasting and as player.
           No external devices connected. No vinyl connected or setup.

Please Unzip Vinyl_pass_Bug.zip file to see screenshots..

1) The deck 1 plays normally. Then the vinyl control pass is pressed (see playing.png)
2) Playback is paused and popup warning window appears. Playback shouldn't have been paused yet. (see popup.png)
3) If cancel is pressed the popup window disappears but the playback stays paused and is not able to resume.
   The play button turns to a sound symbol and pressing it does nothing (see pass_not_cancelled.png)
4) If OK is pressed the preferences window popup, the deck stays paused and is not able to resume.
   The play button turns to a sound symbol and pressing it does nothing. Clicking the Vinyl control button next
   to spinner just hides the options and turns to orange but does nothing. Vinyl pass through mode isn't turn off
   Normal operation isn't returns until the program is restarted.
5) The only way to use deck is by Keyboard shortcuts (D resumes playback) but the controls on the screen don't
   change no matter what. (see mode_not_disengaged.png)

I suppose that if a vinyl deck was connected then a bad connection lost momentarily could lead to the same situation but I can't test this.

Thanks.