Emby Quicksync transcoding not working due to permissions issue

[andrewdavidson64]

✅ Have you read and understood the above guidelines?

yes

📜 What is the name of the script you are using?

emby

📂 What was the exact command used to execute the script?

bash -c "$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/ct/emby.sh)"

⚙️ What settings are you using?

• Default Settings
• Advanced Settings

🖥️ Which Linux distribution are you using?

Ubuntu 24.04

📝 Provide a clear and concise description of the issue.

Emby install script doesn't give sufficient priveleges for hardware transcoding to work. If I do a 'chmod 666 /dev/dri/* ' in the LXC console, it works. It looks like the emby script gives 660 permission, which doesn't work.

🔄 Steps to reproduce the issue.

Install Emby LXC, sad trombone noise.

❌ Paste the full error output (if available).

.

🖼️ Additional context (optional).

No response

[MickLesk]

Have you say y into Installer?

[andrewdavidson64]

Have you say y into Installer?

I did, yes. Also, as stated, if I manually fix the permissions, it works.

[MickLesk]

how you see the incorrect permissions? We need more Feedback, Screenshots or something.

[andrewdavidson64]

how you see the incorrect permissions? We need more Feedback, Screenshots or something.

If you look at the permissions being set in the script, you can see it's setting 660, linked below:

ProxmoxVE/install/emby-install.sh

Line 21 in 2600e84

chmod 660 /dev/dri/*

This needs to be 666.

[MickLesk]

and why? where you see the issue? I'm not going to blindly “fix” something in a script that has been running for over 1.5 years or longer without any issue? The script is almost untouched since tteck.

bafd32f#diff-415e976cb82c34319069d1b8bf84ebf844caf8b79f9fa6431abb4dadbbec6806

[andrewdavidson64]

Well, hardware transcoding doesn't work as the script stands. Typing "chmod 666 /dev/dri/* " in to the LXC's console fixes the issue. I'm not sure what I'm saying that is so difficult to understand.

I'm also not the only person to have this issue - see this thread (incidentally this is where I found the solution):

https://emby.media/community/index.php?/topic/113382-hw-acceleration-in-lxc-on-proxmox/

Edit: I'm appreciative that you're looking at this so promptly. I know it's weird, I've used this script before in the past on the same machine, and it worked OK. It's just not working with this install of proxmox. I've tried reinstalling the LXC with both priv and non-priv, with no difference - no hardware transcoding working, and errors similar to the ones listed in the linked emby community thread.