HW transcoding stopped working after 4.9.3.0 update

[Luke 43103]

Hi, are you still having an issue with this?

[CFC 31]

On 3/24/2026 at 12:20 PM, solidsnakex37 said:

After days of troubleshooting, I can confirm that downgrading from 4.9.3 to 4.9.1.90 resolved this issue for me. 

My Arc A380 wasn't tone mapping, I was getting: 
 

WARNING: Small BAR detected for device 0000:83:00.0
Failed to get number of OpenCL platforms: -1001.
Failed to created derived device context: -19.
Conversion failed!
→ Falling back to software transcoding.

I am no longer getting these errors after a rollback and tone mapping is fixed. 

 

On 5/19/2026 at 8:28 PM, jhoff80 said:

Nothing in the changelog, but anyone planning on being the guinea pig to see if 4.9.5 fixes these issues?  I'll be sticking on 4.9.1.90 for a while.

 

On 5/31/2026 at 3:27 PM, Luke said:

Hi, are you still having an issue with this?

@LukeThis still seems to be an issue on 4.9.5.

Do we know what the latest stable version that correctly handles hardware tonemapping? is it in fact 4.9.1.90?

 

Thanks,
CFC

[Q-Droid 1051]

1 hour ago, CFC said:

Do we know what the latest stable version that correctly handles hardware tonemapping? is it in fact 4.9.1.90?

Yes. That's the latest that isn't broken.

 

[Luke 43103]

HI, we'll have the new ffmpeg build on the server beta channel very soon, so stay tuned for that. Thanks.

[lebowski 2]

I just installed a A380 GPU via unraid, was able to get it working with Tone Mapping under 4.9.1.90 only. Took me hours to figure it all out, and I'm watching this thread for updates. Thank you.

Edited August 3 by lebowski

[jhoff80 94]

Been broken (in the 'stable' build no less) literally for 8 months now.  Can't imagine why people would be more interested in the open-source fork.

[Wynter 3]

There cannot possibly be any acceptable reason of any kind for breaking a feature like this and not fixing it at this point.

[Q-Droid 1051]

Patience grasshopper. It's only been eight months.

 

[quized 1]

Hello. After release 4.10.0.40, i have problem too

[solidsnakex37 56]

5 hours ago, quized said:

Hello. After release 4.10.0.40, i have problem too

I really thought it would be fixed in this latest stable but I guess not, glad I haven't upgraded yet. I'm still stuck on 4.9.1.90

[Q-Droid 1051]

You might have to provide more details because in my case the new stable release did resolve the HW tone mapping.

 

[quized 1]

19 hours ago, Q-Droid said:

Il vous faudra peut-être fournir plus de détails car, dans mon cas, la nouvelle version stable a résolu le problème de mappage des tonalités matérielles.

 

Hello,

Material:

Docker container (with emby prep) on QNAP NAS with NVIDIA GP107GL Quadro P620 graphics card.

 

Observation:

Updates after version 4.9 the loses hardware transcoding in the interface. if rollback in 4.9 transcoding OK

 

 

docker-compose.txt embyserver (1).txt hardware_detection-63924988118 (1).txt embyserver-63924988163.txt hardware_detection-63924988166.txt

[quized 1]

for information, same in 4.9.3. but work

 

same-in-4.9.3.zip

Edited yesterday at 11:28 AM by quized
Misinterpretable statement

[weyon668 8]

21 hours ago, Q-Droid said:

You might have to provide more details because in my case the new stable release did resolve the HW tone mapping.

 

How do you get this site in the Browser? Thanks.

Edited yesterday at 01:25 PM by weyon668

[Q-Droid 1051]

  

2 hours ago, weyon668 said:

How do you get this site in the Browser? Thanks.

The diagnostics plugin from the catalog.

Edited 23 hours ago by Q-Droid

[quized 1]

29 minutes ago, Q-Droid said:

The diagnostics plugin from the catalog.

 

What do you want with the diagnostic plugin?

[Q-Droid 1051]

1 hour ago, quized said:

What do you want with the diagnostic plugin?

That was a reply to another member's question

[weyon668 8]

On 9/14/2026 at 3:45 PM, Q-Droid said:

  

The diagnostics plugin from the catalog.

Installed. But how can I See the Data you posted?

[Q-Droid 1051]

Navigate to Manage Emby Server -> User Sessions