Posts by Cabal

Thank you for the extensive answer. I will take that into account with future hardware selection.

n/a

Why would changing from Limited to Full RGB change this? Does the AV1 decoder have a dependency on Full RGB?

I would prefer not to change from Limited, as I currently have all my devices (which run through the AVR) configured and calibrated accordingly.

After a couple years off from LibreELEC after being a long-time user of both RPi and x86, I'm back to do some testing. Armed with a newer TV (LG C2) and AVR (Denon S570BT) that makes it easy to see what is being output, I'm impressed with the bit-depth switching when changing videos. The black screen when switching output is noticeable, but not as long as a refresh rate change. In the plethora of files I've tested, I've seen the following output (in Denon language):

- UI: 4k60 RGB 8-bit
- H.264 8-bit (HW), HEVC 8-bit (HW): 4k60 RGB 8-bit
- H.264 10-bit (SW), HEVC 10-bit (HW), HEVC 12-bit (SW): 4k60 4:2:2 12-bit

The above are all 4K or 1080p SDR only, for the purpose of this question. (HDR works well, too.)

My question is, with the same configuration, I've noticed that AV1 10-bit files, via dav1d, are still output as 4k60 RGB 8-bit. I would have expected them to also be 4k60 4:2:2 12-bit.

Is this a bug, or a limitation of driver/software support as noted in the docs?

Thanks.

For those keeping score at home, I switched back to LE 9.2.6 and was able to regain mpeg2 HW decoding and all the VAAPI deinterlacers, including my preferred motion-compensated (MCDI). Perhaps in the future the new Intel driver will support this older hardware, but I'm not holding my breath.

I'm currently running a NUC5CPYH:

Intel® NUC Kit NUC5CPYH - Product Specifications | Intel

Intel® NUC Kit NUC5CPYH quick reference with specifications, features, and technologies.

www.intel.com

This features an Intel N3060 CPU:

Previously (LE9, maybe? 8?) I was able to get motion-compensated deinterlacing, and maybe even mpeg2 hardware decoding. Currently I can get neither.

Following other suggestions, I tried a /storage/.config/kodi.conf with:

MESA_LOADER_DRIVER_OVERRIDE=i965
LIBVA_DRIVER_NAME=i965

as well as only

LIBVA_DRIVER_NAME=i965

Neither showed any difference in the driver being loaded when looking at the X logs. Is this old driver still available on 10.0.1? Sorry about the formatting, this editor is not working with me. Thanks.

I had no luck with multiple iterations of an xorg.conf, so I ended up going with an autostart.sh:

#!/bin/sh


(
sleep 6
xrandr --newmode 1920x1080 148.5 1920 2008 2052 2200 1080 1084 1089 1125 \
+HSync +VSync
xrandr --addmode HDMI2 1920x1080
xrandr --output HDMI2 --mode 1920x1080
) &

Any suggestions on xorg.conf syntax would be great.

I also set up the Hisense's edid.cpio in /flash (for a usable boot screen), and the Pioneer's edid.bin in .config/firmware/edid (in case it reboots with the TV/AVR off).

Not pretty, but everything works again (mostly).

No luck with just the modesetting driver, looks like I'll need to build up a bigger xorg.conf.

I did have luck adding the Hisense EDID to the installer flash drive, so at least I don't need to swap cables to do the 8.0.1 install anymore. That is some tiny curses font at 4K.

Yeah, I'm sure the receiver could be improved, but given its 5-year age, I'm not expecting much in the way of firmware support from Pioneer at this point. It's had a pretty good (and compatible) life so far.

I'll try out the modesetting driver.

Greetings. I'm running the following, wired as such:

Intel NUC NUC5CPYH (4K but 1080p preferred, latest firmware)
|
Pioneer VSX-1022-K receiver (1080p, latest firmware)
|
Hisense 50H8C (4K, latest firmware)

LE 7.0.3 installer: no issue
LE 7.0.3 operation: no issue

LE 8.0.1 installer: only the top-left quarter of the installer is visible
LE 8.0.1 operation (after bypassing receiver for installation): max resolution is 576p/50Hz, and only a few other resolutions are available

I've been able to find two workarounds so far:

Workaround A.)
Connect the NUC directly to the TV (which works great), pull the EDID info, and follow the wiki for using a custom EDID (Custom EDID - LibreELEC) after bring the receiver back into the mix. This seems to work well enough, but I can only pass through very basic AC3 or DTS, and lose most of the capabilities of my receiver.

Workaround B.)
Grab all the details of a working modeline at 1080p, and with the receiver in the mix, use xrandr to add the known-good modeline and then activate it. One of many downsides here is that I need to both set up the modeline and then choose it from the UI after each boot.

Is workaround B preferred, and is the right way to go about using that with a custom xorg.conf? Is there a minimal xorg.conf file I can use for just a custom modeline?

I had to revert the system to 7.0.3 for family use, so I don't have 8.0.1 logs available at present. I do have the Hisense EDID file as obtained from 8.0.1, and I can pull any info from the running 7.0.3 installation.

Thanks.