Posts by smp

Quote from handaryn

vaapi is not working on 4k Hdr live streams

This is a known Kodi issue. No fix as of yet.

VAAPI hw decode failure with 4K HEVC HLG DVB stream · Issue #23699 · xbmc/xbmc

Bug report Describe the bug Here is a clear and concise description of what the problem is: I'm having an issue with "Hot Bird 4K1" TV channel that is…

github.com

Disney+ Addon not playing properly the stream when VAAPI is enabled · Issue #25383 · xbmc/xbmc

Bug report Describe the bug Here is a clear and concise description of what the problem is: Disney+ Addon creator and Inputstream.Adaptive maintainers think…

github.com

If you have a problem relevant to this thread then post about it here. Those outdated builds would not resolve anything.

More info here about Samsung + Gemini Lake no signal issue.

Goto General->External Device Manager->HDMI UHD Color (or Input Signal Plus on newer models) and disable it.

Use the normal Generic image, not Legacy.

What TV? Samsung?

Quote from HansM

So is it some kind of miscommunication between LE and LG TV?

It's a bug/feature of your TV's firmware. Maybe some setting in the service menu would disable PC mode.

On a Samsung TV the PC mode activates only when you change the "Device icon" to "PC".

The only change in that driver since kernel 5.10 (LE10) is https://github.com/torvalds/linux…440e5c8dfd02896. So I see no reason to revert other commits. The issue must be somewhere else.

Quote from 824c6286420nyn

Do you think it would be useful if I open a bug in the i915 kernel repo

I'd be very surprised if this would get any attention there.

Quote from 824c6286420nyn

Any reason this isn't merged in upstream?

This disables an essential HDMI 2.0 feature. Also, the issue seem to be specific to Gemini Lake. I couldn't reproduce it with Alder Lake/Tiger Lake.

HDMI 2.0 on Gemini Lake is finicky. I came up with this kernel hack to make it work without random black screens on a Samsung TV:

diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index 2fa9ba3..b258e1d 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -2549,7 +2549,7 @@ int intel_hdmi_compute_config(struct intel_encoder *encoder,
 			pipe_config->hdmi_scrambling = true;
 
 		if (pipe_config->port_clock > 340000) {
-			pipe_config->hdmi_scrambling = true;
+			pipe_config->hdmi_scrambling = false;
 			pipe_config->hdmi_high_tmds_clock_ratio = true;
 		}
 	}

No idea if this would help in your case.

Quote from 824c6286420nyn

is it going to a night and day difference or something minor?

It should make a big difference. I never tested it on Gemini Lake though.

111032 – Need to set gt_min_freq_mhz to max value to avoid sync issues on Gemini Lake N5000/J5005

There was supposedly a fix/improvement back in 2019.

2024-06-24 09:36:40.162 T:966      info <general>: ffmpeg[0x38936ae0]:     Side data:
2024-06-24 09:36:40.162 T:966      info <general>: ffmpeg[0x38936ae0]:       DOVI configuration record: version: 1.0, profile: 5, level: 6, rpu flag: 1, el flag: 0, bl flag: 1, compatibility id: 0

You are trying to play a Dolby Vision video.

If you can compile your own LE image you can try to build it with this patch removed. This will enable async rendering and should improve GUI performance quite a bit.

Did you disable "Disable screensaver when playing audio" setting?

Quote from Cabal

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

I don't have an RPi but I think this RPI-specific patch does the bit depth detection and sets the HDMI mode accordingly. No idea why it does not work for AV1 though.

Quote from e123enitan

When I changed channel it flickers

This was fixed in Kodi 22 "P", so wait for LE13.

Quote from Zuma

signal HLG not work in TV LG

Try this build.