Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

addictive

macrumors 6502
Original poster
Jul 6, 2008
371
357
Last night I updated my rMBP (2015) to mac os monterey 12.5. I didn’t notice any difference until I tried opening video files (mp4 or mkv) in QuickTime or VLC. The videos will open but not play. Very occasionally I’ll get a single frame but nothing more, I can’t scrub through the timeline of the video it’s just a black screen.

I had no issue playing videos until this latest update.

Any suggestions? Is this happening to anyone else?

Will I just have to wait for another software update?
 
You might trying a MacOS system recovery/reinstall. Shut down, then restart but hold down the Option-Command-R keys at the chime. I typically do this a few days/week after a new OS update is available. It's done me pretty good.

You might also try the program "VLC". This plays mp4 and mkv files without any problem.


Good luck!

-Merlin
 
Last edited:
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.