Unable to play video & audio files in Gnome MPV under Lubuntu 18.04 daily build

[Ken T]

This bug has a couple of points in common with Bug #1747331 :

- It was seen under the same daily build of Lubuntu 18.04, from about 2 weeks ago; and
- Even though for a different program than the other bug report, it resulted in a similar dialogue box about the program closing unexpectedly (this time, Gnome MPV rather than Notifications), and the same behaviour when clicking on the "show details" button (showing a one-line error message for about 1 second, then disappearing before I could read it).

So, I tried opening various video / audio files known to play fine on *ubuntu 16.04, in various formats ( .mp4, .vob, .mp3), and none of them play. The buttons in Gnome MPV are unresponsive, and the program crashes, sometimes with a dialogue box, sometimes without. When trying to play a .mp3 file however, I got a differently-formatted and more helpful error message than I had previously. It read:

"Problem in Gnome MPV
Sorry, the program 'gnome-mpv' closed unexpectedly
Your computer does not have enough free memory to automatically analyse the problem and send a report to the developers." <Button marked 'Close'>"

Now the funny thing is, I'm using a PC with 1GB of RAM, and at the time of trying to open the video file, wasn't running any other program except for the file manager, so I would expect that I'd have plenty of RAM both for playing the file and auto-generating a crash report. I'm using a 2005-era laptop, 1.6Ghz Pentium M processor.

Thanks,
Ken.
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[Simon Quigley (tsimonq2)]

I think the computer has too little memory to run mpv properly, unfortunately.