Stuttering Playing 4K H.265 Movies on my HTPC

vlad1966 · August 19, 2017 at 9:36 PM

Hello Everyone,

Long time OpenElec user, just switch over to LibreElec today on my HTPC & loving it, except for 1 problem - mentioned in the title of this post.

My HTPC has:

Core i3-7100

Gigabyte GeForce GT1030

8GB RAM

LibreELEC Krypton 8.1 Beta

TP-Link T9E 802.11ac

I've tried playing the H.265 movies off my network via my 802.11ac wireless network & the Intel GB Ethernet link built into my motherboard & the stuttering seems to be the same.

Any recommendations how to get smooth 4K playback on my new HTPC?

Thanks!

PS: If you're looking for a great 802.11ac mesh/router - I highly recommend the Amplifi HD Home Wi-Fi System

**chewitt** · August 19, 2017 at 10:57 PM Official Post

pastebin a Kodi debug log demonstrating the problem please

vlad1966 · August 20, 2017 at 12:33 AM

where do I find the debug log?

**chewitt** · August 20, 2017 at 12:44 AM Official Post

HOW TO:Provide Logfile - LibreELEC

**Klojum** · August 20, 2017 at 2:36 AM Official Post

Stuttering comes in many forms:

- Big stutters / pauses

- Many small(er) stutters

- Micro stutters every 10/20/30 seconds

The only stuttering for the GT1030 I can think of (I have a GT1030), is running a 10 bit video on a Linux system. Nvidia drivers don't support 10bit video in Linux, meaning all 10bit video decoding is done via software. Press the letter 'o' during a video for details. in Windows, it's all fine...

All should be noticed via the already requested debug kodi.log file, whether it's a video or a network problem.

Quote from vlad1966

Core i3-7100

If it's a video problem, Intel's Kaby Lake can display 10bit HEVC video in Linux by now. Take out the GT1030 and try the internal GPU with LibreELEC.

vlad1966 · August 20, 2017 at 6:23 PM

Klojum - thanks for the tip. So I connected the HDMI cable from my UHD Receiver to the HDMI port on my mobo & I am able to play 4K H.265 movies beautifully using the built-in GPU on the i3-7100, over my wireless AC network too. But now there's a different problem whenever I reboot or cold boot the HTPC. See attached.

I can usually get around this error by doing Control-Alt-Delete so that LibreELEC will boot. Last time it took 3 3-finger salutes. Any way to fix this?

vlad1966 · August 23, 2017 at 1:36 AM

anyone?

**Klojum** · August 23, 2017 at 5:48 AM Official Post

Hmm... Connect the i3-7100 directly to the TV. It *should* boot okay.

If not, and it does work after one or more reboots, it could be a Intel BIOS problem (have you got the latest?), or there is some EDID problem.

Have a look here: Custom EDID - LibreELEC

Also: where is the debug kodi.log file?