makemkv hangs, makemkvcon at 100%

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nordwand
Posts: 2
Joined: Wed Mar 25, 2026 11:44 am

makemkv hangs, makemkvcon at 100%

Post by nordwand »

Hi all

MakeMKV v1.18.3 (new compiled)
Registered user.
Arch Linux up to date

I am trying to rip a BD, but the main MakeMKV window has "Scanning CD-ROM devices" at 100% and hangs there.
There is a process "makemkvcon" that eats 100% CPU time, which seems what the frontend is waiting for.

I can confirm that with 1.18.3 on Windows, with the same BD reader and BD disk, there are no issues.

Any ideas?
science-nerd
Posts: 28
Joined: Mon Feb 02, 2026 2:26 pm

Re: makemkv hangs, makemkvcon at 100%

Post by science-nerd »

Is your sg kernel module loaded?

You can load it for the current session via modprobe:

Code: Select all

sudo modprobe sg
tomty89
Posts: 38
Joined: Sun Dec 13, 2020 8:48 am

Re: makemkv hangs, makemkvcon at 100%

Post by tomty89 »

In my experience, occasionally with some drives / discs, one could bump into this kind of hang issue if you inserted the disc *before* makemkv is started.
librelibre
Posts: 16
Joined: Tue Dec 09, 2025 4:55 pm

Re: makemkv hangs, makemkvcon at 100%

Post by librelibre »

What do your system logs say? Or makemkv log?
nordwand
Posts: 2
Joined: Wed Mar 25, 2026 11:44 am

Re: makemkv hangs, makemkvcon at 100%

Post by nordwand »

Thanks everyone, and sorry for the late reply, we had holidays here.

> In my experience, occasionally with some drives / discs, one could bump into this kind of hang issue if you inserted the disc *before* makemkv is started.

When I first start makemkv, and then load the disc, it hangs indefinitely in the "Type: Loading ..." Label: Please wait" state

> What do your system logs say? Or makemkv log?

makemkv log shows nothing, just "MakeMKV v1.18.3 linux(x64-release) started"
System logs (journallog) gives nothing related to device loading etc.

> Is your sg kernel module loaded?

Yes it is:

Code: Select all

$ lsmod | grep sg
sg                     53248  6
I have doubted that my bluedisc support libraries are problematic, but I had no problem playing the disc using smplayer directly from the drive.

Thanks for any further suggestions!
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