Package Details: decklink 12.0-1

Git Clone URL: (read-only, click to copy)
Package Base: decklink
Description: Drivers for Blackmagic Design DeckLink, Intensity or Multibridge video editing cards
Upstream URL:
Licenses: custom
Submitter: alub
Maintainer: goldensuneur
Last Packager: goldensuneur
Votes: 19
Popularity: 0.56
First Submitted: 2015-10-03 15:38
Last Updated: 2021-01-22 09:20

Pinned Comments

goldensuneur commented on 2020-03-02 19:00

I finally had time to investigate the issue. It looks like that as of 11.5, the DesktopVideoHelper.service has to be running for the capture card to work properly.

Latest Comments

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ericfont commented on 2021-04-06 00:52

Waking from suspend results in threads for "DesktopVideoUpdater" and two threads for "DesktopVideoHelper" consuming an entire 100% of a CPU each, for a total of 400% of a CPU being consumed. This performance bug has been reported to DesktopVideoUpdater and DesktopVideoHelper and comments say it happens on Manjaro, Debian, Mint, and Arch.

I am also noting that video capture in OBS doesn't work on the realtime kernel (linux-rt)...simply produces a black image in OBS and freezes OBS.

lorddickfist commented on 2021-01-23 21:05

thanks for the info, will try that as soon as I figure out how :)

MAJOR EDIT: Was able to fix by switching to a different obs package. I ended up switching to obs-studio-browser. It doesn't seem to have anything missing from the original package, but it is updated to 26.1.1

daren commented on 2021-01-23 20:39

Wrote this a couple posts back before it got buried.

You need to update OBS to 26.1.1 by adapting the PKGBUILD.

For some reason the Arch repo version is still stuck at 26.1.0 containing a bug for Intensity cards (I had the all green thing as well).

lorddickfist commented on 2021-01-23 20:32

@daren can you share all of your obs settings for the blackmagic because I get the same issue after updating to 12.0

YUV doesn't show anything but green

daren commented on 2021-01-23 18:17

Yes, no issues using my Blackmagic Intensity Pro with OBS 26.1.1 feeding a 720p60 HDMI input.

Sebiann commented on 2021-01-23 17:53

@daren So you don't get the half purple half black screen?

daren commented on 2021-01-23 09:22

It works for me post 12.0 update on latest 5.10.9 kernel. Use other cables and other input sources as well, clean HDMI slot(s) maybe. Just to rule these things out.

lorddickfist commented on 2021-01-23 07:49


Well The box was open and the seal in the static bag was broken so I am trying a replacement first because I only get those half purple half black input if the resolution is manually matched to the ps5

If issue persists I will leave a thread on their forum, thanks!

goldensuneur commented on 2021-01-22 10:11

Blackmagic just released new drivers however they do not compile on new kernel so I kept the patches I made for older release. As usual, I'm not a kernel dev so my patches may introduce bugs. I encourage you to complain to Blackmagic if you want proper driver for linux 5.10+ (they have been aware of this issue for months and haven't done anything yet) or stick to lts releases.

@lorddickfist I used to get this kind of artifacts when I selected the wrong framerate / resolution.

lorddickfist commented on 2021-01-22 01:49

Getting black screen on auto, and if I set it to 1080p 59.94 I get a purple screen with half black like this:

Mediaexpress same thing DesktopVideoHelper.service starts correctly and recognizes device.