Posts by smp

Quote from yamcenutzer

why can I not playback UHD when watching TV via HTS client on Intel systems?

I've seen this with HDR (HLG) 4K channel. Regular SDR 4K channels work fine for me.

Quote from CvH

wondering if we could disable this option at the kodi gui as it just creates problems ?

IMO this should be done upstream in Kodi, e.g. if platform supports VAAPI then DRM PRIME option should not be present in GUI.

Quote from yamcenutzer

What are the chances that the 11gen intel chips get fixed?

As you can see on this block diagram, NUC11PAxxx does not have a native HDMI port. It is using a DP->HDMI protocol converter (PCON) chip. It is more than likely the source of your audio passthrough issues. So this is not a gen11 issue but an issue specific to that NUC model. There is nothing to fix from LE/Kodi side.

No. DRM PRIME was never properly implemented for x86.

I simply downloaded the needed files and created the patch files with git diff.

e.g. for av201x .c:

git diff emptyfile av201x.c > 1.patch

then fixed the path/file name in .patch file.

There are probably better ways to do this (e.g. git cherry-pick) but it works for me.

Disable debug logging?

Quote from jonnybe

but sadly this is no longer available on dropbox

Post

RE: [HOW-TO] TBS 5520SE Drivers for LE11, LE12, LE13 on RPi4

For those who only use the satellite tuner I modded the driver to disable the DVB-T/C tuner.

TBS 5520SE has 2 tuners attached to a single demod. DVB core apparently does not support 2 tuners on 1 demod so the driver used a hacky way to split the adapter in 2 virtual frontends. This cause all sorts of issues with tvheadend (e.g. "no free adapter available"). I modded the driver so si2157 DVB-T tuner is not attached and only 1 DVB-S frontend is created.

forum.libreelec.tv/core/attachment/10336/

smp

December 17, 2023 at 4:05 AM

Looks like PCI-E cards are handled by tbsecp3 driver. You will also need to add av201x tuner driver and gx1133 demod driver.

Quote from sky42

and i am not sure one could do that in kodi too.

Also those kodi patches are for DRMPRIME which we don't use on x86.

diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index bc97591..3da321f 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -1895,7 +1895,7 @@ static bool intel_hdmi_source_bpc_possible(struct drm_i915_private *i915, int bp
 {
 	switch (bpc) {
 	case 12:
-		return !HAS_GMCH(i915);
+		return !HAS_GMCH(i915) && DISPLAY_VER(i915) <= 10;
 	case 10:
 		return DISPLAY_VER(i915) >= 11;
 	case 8:

^ This can be used to force 10-bit instead of proptest. This will disable 12-bit for newer Intel hw that can support 10-bit. 10-bit is only supported since Ice Lake.

Quote from sky42

What impact has it to only use 10 bit instead of 12?

None whatsoever.

Quote from sky42

Has anybody any pointers where i could open a bug for that?

Quote from sky42

how do i force 8 Bit or 10 Bit

For 8-bit:

systemctl stop kodi
./proptest 185 connector 191 8
systemctl start kodi

Quote from sky42

How do i edit the edid and change "SCDC Present"?

I used this. It's in CEA Extension 1 -> HDMI-Forum VSDB.

Try to force YCbCr 4:4:4 instead of RGB:

diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index 7816b2a..758f3dc 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -2196,7 +2196,7 @@ intel_hdmi_output_format(struct intel_connector *connector,
 	if (connector->base.ycbcr_420_allowed && ycbcr_420_output)
 		return INTEL_OUTPUT_FORMAT_YCBCR420;
 	else
-		return INTEL_OUTPUT_FORMAT_RGB;
+		return INTEL_OUTPUT_FORMAT_YCBCR444;
 }
 
 static int intel_hdmi_compute_output_format(struct intel_encoder *encoder,
@@ -2215,8 +2215,8 @@ static int intel_hdmi_compute_output_format(struct intel_encoder *encoder,

	if (ycbcr_420_only && crtc_state->sink_format != INTEL_OUTPUT_FORMAT_YCBCR420) {
		drm_dbg_kms(&i915->drm,
-			    "YCbCr 4:2:0 mode but YCbCr 4:2:0 output not possible. Falling back to RGB.\n");
-		crtc_state->sink_format = INTEL_OUTPUT_FORMAT_RGB;
+			    "YCbCr 4:2:0 mode but YCbCr 4:2:0 output not possible. Falling back to YCBCR444.\n");
+		crtc_state->sink_format = INTEL_OUTPUT_FORMAT_YCBCR444;
	}

	crtc_state->output_format = intel_hdmi_output_format(crtc_state);
@@ -2247,7 +2247,7 @@ int intel_hdmi_compute_config(struct intel_encoder *encoder,
	    adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE)
		return -EINVAL;
 
-	pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
+	pipe_config->output_format = INTEL_OUTPUT_FORMAT_YCBCR444;

	if (pipe_config->has_hdmi_sink)
		pipe_config->has_infoframe = true;

Other things to try: force 10-bit and 8-bit 2160p @ 23,976 Hz mode instead of default 12-bit (with libdrm proptest tool).

Also worth trying a custom EDID with "SCDC Present" bit set to "disabled".

IMO those dropouts are data errors related to Intel HDMI 2.0 implementation.

Quote from blueribb

Settings - System - Power Saving - Shutdown Function - Suspend

This is supposed to be used with Shutdown function timer. It works as intended.

I think lrusak said on slack he will look into it. Unfortunately I have very little experience with pw.

I think Pipewire should only be enabled with Kodi 21/LE12.

Install tvheadend43 and pvr.hts, configure tvheadend via the web interface (default port is 9981). It should work

ls /dev/dvb/adapter0/ . You should see frontend0 is present if the driver successfully loaded

Quote from sky42

smp do you know how to build a version with pipewire?

Edit distributions/LibreELEC/options

PIPEWIRE_SUPPORT="yes"

KODI_PIPEWIRE_SUPPORT="yes"

ALSA_SUPPORT="no"

KODI_ALSA_SUPPORT="no"

PULSEAUDIO_SUPPORT="no"

KODI_PULSEAUDIO_SUPPORT="no"