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How exactly do you get HEVC transcoding exactly? Can't get Emby to work

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CPU- Kaby Lake Intel Celeron G3930, 2 cores 2 threads

Motherboard- Asus H110M-K motherboard


Things I've done so far:

Changed my go script to:


modprobe i915

chmod -R 777 /dev/dri


# Start the Management Utility

/usr/local/sbin/emhttp &



syslinux.cfg and added the the kernel parameter i915.alpha_support=1


For reference, my file looks like this:


default menu.c32
menu title Lime Technology, Inc.
prompt 0
timeout 50
label unRAID OS
  menu default
  kernel /bzimage
  append initrd=/bzroot i915.alpha_support=1
label unRAID OS GUI Mode
  kernel /bzimage
  append initrd=/bzroot,/bzroot-gui
label unRAID OS Safe Mode (no plugins, no GUI)
  kernel /bzimage
  append initrd=/bzroot unraidsafemode
label unRAID OS GUI Safe Mode (no plugins)
  kernel /bzimage
  append initrd=/bzroot,/bzroot-gui unraidsafemode
label Memtest86+
  kernel /memtest


Booted the bios, and made sure primary display is "cpu graphics"

IGPU Multi-Monitor= Enabled

Above 4G Decoding= Enabled


Went into EmbyServer docker container, and under Transcoding, Enable hardware acceleration when available= Yes


Edited the EmbyServer docker container, under Extra Parameters, put in "--device /dev/dri:/dev/dri", under Container Variable: GIDLIST=18


Still not working.  Am I still missing anything?

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in syslinux.cfg the i915.alpha_support option is not needed for your case so you can drop that.

Try setting Emby Transcoding to Advanced. You should see a list of video codecs and any available HW decoders for them.



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Removing the following line gives me errors in non Gui mode.


append initrd=/bzroot i915.alpha_support=1





Putting it back allows me to boot normally once again.  Will resume further testing when this is fixed.

Edited by jang430
additional information

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6.8.0.  When I put this line back "append initrd=/bzroot i915.alpha_support=1" everything is well again. 

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You might need to check with the Emby Devs on whats up with your media and why it cannot be decoded with HW acceleration.

I had some transcoding issues before and it turns out it was a specific setting with regards to subtitles that was causing the format to fail and run in SW decoding instead.



On 1/14/2020 at 8:28 PM, jang430 said:

Removing the following line gives me errors in non Gui mode.


append initrd=/bzroot i915.alpha_support=1

you don't remove the whole line. you just remove the i915.alpha_support=1 part

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