Intel NUC, kodi on 4K is limited to 30FPS

**mglae** · July 11, 2017 at 4:31 PM

Looks like the firmware file is missing for your GPU:

Code

[    1.118734] i915 0000:00:02.0: Direct firmware load for i915/bxt_huc_ver01_07_1398.bin failed with error -2
[    1.118739] [drm] Failed to fetch valid uC firmware from i915/bxt_huc_ver01_07_1398.bin (error -2)
[    1.120085] [drm] GuC firmware load skipped

BoKKER · July 11, 2017 at 5:06 PM

yes I did use DP1. I used this tutorial Using xrandr and gtf to add a new mode to your X configuration at runtime | arunviswanathan.com

gwilly7 · July 11, 2017 at 6:52 PM

How do you get the firmware for the gpu? This was a fresh install of @escalades newest version of his community build.

BoKKER · July 11, 2017 at 8:42 PM

I will be trying tomorrow this, drivers - External screen recognized, but black - Ask Ubuntu

I am running today tests on windows.

**escalade** · July 11, 2017 at 9:47 PM

gwilly7 BoKKER

Le8.0.x doesn't have the firmware bump needed yet. I've just uploaded my 20170711 build which has it.

Otherwise you could download and manually put into /storage/.config/firmware/i915: bxt_huc_ver01_07_1398.bin

gwilly7 · July 12, 2017 at 1:03 AM

I was able to get the new version installed but still no 3840x2160 @60 I do not see the same firmware error in the log though. Thank you very much for all the help.

VEVX

**escalade** · July 12, 2017 at 10:19 AM

Firmware loads now at least, but I guess that wasn't the issue:

Code

[    1.098012] [drm] Finished loading DMC firmware i915/bxt_dmc_ver1_07.bin (v1.7)
[    1.120486] [drm] GuC firmware load skipped
[    1.121059] [drm] Initialized i915 1.6.0 20170123 for 0000:00:02.0 on minor 0

Here's a build of mine with Linux 4.12 you could try that: LibreELEC-Generic.Haswell.x86_64-8.0-devel-20170710.tar - Google Drive

It's also worth a shot trying the modesetting driver instead of Intel's DDX driver:

Code

# cp /etc/X11/xorg-modesetting.conf /storage/config/xorg.conf && systemctl restart xorg

BoKKER · July 12, 2017 at 8:31 PM

hm Its probably just me, I tried to flash the image using the USB tool it did not work, I ended up with a badly formated usb. I tried to flash a normal image to get the boot manager on the USB. Then overwrite the files on the usb with the files from your tar archive but it still wont boot. am I missing something ? maybe gwilly7 will have more luck

gwilly7 · July 12, 2017 at 11:01 PM

My lan port quit working on my nuc so I will have to try and figure that out before giving it a shot.

**mglae** · July 12, 2017 at 11:28 PM

Maybe there is additional information in the xorg log:

Code

cat /var/log/Xorg.0.log|pastebinit

Finally you can try to add the mode manually:

Code

xrandr --newmode "3840x2160p60"  593.41  3840 4016 4104 4400  2160 2168 2178 2250 +hsync +vsync
xrandr --addmode DP1 3840x2160p60
xrandr --output DP1 --mode 3840x2160p60

gwilly7 · July 13, 2017 at 1:27 AM

Quote from mglae
Maybe there is additional information in the xorg log:
Code
cat /var/log/Xorg.0.log|pastebinit
Finally you can try to add the mode manually:
Code
xrandr --newmode "3840x2160p60"  593.41  3840 4016 4104 4400  2160 2168 2178 2250 +hsync +vsync
xrandr --addmode DP1 3840x2160p60
xrandr --output DP1 --mode 3840x2160p60

This worked perfect, gave me 59.94 for refresh rate. I can not thank everyone enough for your help. I am so happy to finally have this working.

After further testing this only works until reboot. I will have to find a way to run these commands on startup. Below is my new xrandr info

P1 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 1430mm x 800mm

3840x2160 30.00 + 59.94 24.00 29.97 23.98

4096x2160 24.00 23.98

1920x1080 60.00 59.94 30.00 24.00 29.97 23.98

1920x1080i 60.00 59.94

2880x480 60.00 59.94

1280x720 60.00 59.94

1024x768 75.03 70.07 60.00

1440x480 60.00 59.94

800x600 72.19 75.00 60.32

720x480 60.00 59.94

640x480 75.00 60.00 59.94

720x400 70.08

3840x2160p60 59.94*

fTdOmen · July 13, 2017 at 3:49 AM

Quote from escalade

For a recent NUC I would recommend a community build with the latest and greatest kernel / display driver stack. Try mine or Milhouse's.

Does your build support Hardware 10bit HEVC decoding

**escalade** · July 13, 2017 at 9:36 AM

fTdOmen

Yes it does.

BoKKER · July 13, 2017 at 8:52 PM

I cant get your build LibreELEC-Generic.Haswell.x86 to work. I tried updating, I tried installing from a USB, I tried manually replacing files. What am I missing? The screen always gets stuck on SYSLINUX 6.03 (bootloader prob)

captainthe · July 13, 2017 at 9:05 PM

Without sifting through all the replies you have here, I can guarantee you the NUC can display 60 fps, at least on 1080p. I have 4 here, 1 of which is the cheapest model NUC (Celeron) and they all can handle 60 fps from SmoothStreams

**mglae** · July 13, 2017 at 9:25 PM

Quote from gwilly7

This worked perfect, gave me 59.94 for refresh rate

Fine.

To make it persistent an approach can be:

Code

mkdir -p /storage/.config/system.d/xorg.service.d
cat >/storage/.config/system.d/xorg.service.d/randr.conf <<EOF
[Service]
ExecStartPost=-/bin/sh -c ". /etc/profile; exec /bin/sh /storage/.config/xorg.xrandr.sh"
EOF

And put the first two xrandr lines into /storage/.config/xorg.xrandr.sh

Is completely untested.

If someone with working 4k environment posts the output of xrandr --listmonitors --verbose|pastebinit possibly missing modes can be added too.

gwilly7 · July 15, 2017 at 6:10 AM

Quote from mglae
Fine.

To make it persistent an approach can be:
Code
mkdir -p /storage/.config/system.d/xorg.service.d
cat >/storage/.config/system.d/xorg.service.d/randr.conf <<EOF
[Service]
ExecStartPost=-/bin/sh -c ". /etc/profile; exec /bin/sh /storage/.config/xorg.xrandr.sh"
EOF
And put the first two xrandr lines into /storage/.config/xorg.xrandr.sh

Is completely untested.

If someone with working 4k environment posts the output of xrandr --listmonitors --verbose|pastebinit possibly missing modes can be added too.

I have not been able to get this to work. Is there a log that might show where I am going wrong.

here is the contents of the two files created.

LibreELECNuc:~ # cat /storage/.config/system.d/xorg.service.d/randr.conf

[Service]

ExecStartPost=-/bin/sh -c ". /etc/profile; exec /bin/sh /storage/.config/xorg.xr andr.sh"

LibreELECNuc:~ # cat /storage/.config/xorg.xrandr.sh

xrandr --newmode "3840x2160p60" 593.41 3840 4016 4104 4400 2160 2168 2178 2250 +hsync +vsync

xrandr --addmode DP1 3840x2610p60

LibreELECNuc:~ #

Thank you very much for your help once again.

**escalade** · July 15, 2017 at 8:31 AM

Placement and content of systemd service is wrong. Just put your xrandr commands in autostart.sh