30Hz only on Intel UHD on LE 8.90.008

Hi,

CPU/GPU is Pentium Gold G5600 (Coffee Lake with Intel UHD 630 graphics).

Mainboard: ASUS H370-I (DP and HDMI 1.4 ports), Yamaha AV receiver connecter via DP port through Club 3D CAC-1070 DP to HDMI 2.0 adapter.

Issue:

At 4K resolution refresh rate is limited to max. 30Hz only. On Windows using DP port and this P to HDMI adapter I'm getting 4K/60Hz even in 4:4:4 (RGB) mode with no issues.

I borrowed this adapter to a collegue that has Penttium G4560 (Kaby Lake with HD 610) - he's getting 4K/60Hz with LE 9 (unsure which build though).

So I guess this is driver limitation in LE 9 on UHD graphics ?

Hi,

Club 3D CAC-1070 is DP 1.2+HDMI 2.0 only, so it does not support HDR (2.0a required) or even 3D (DP 1.4 required). But it does the job of 4K/60Hz under Windows, sadly not under LE.

Previously I was trying AMD's RX 550 which has native HDMI 2.0a (or b, unsure) and again under LE9 4K output was limited to 30 Hz....

However I realized Club 3D has a newer version of this DP-HDMI adapter called CAC-1080 that supports DP1.4 on input and HDMI 2.0b on output. It's then both 3D and HDR compatible. I ordered it already and going to give it a try.

But what concerns me is that CAC-1070 in my colleague's HTPC (with Kaby Lake HD610) does give 4K/60Hz output but not with my Coffee Lake/UHD 630.

Yes, I'm aware of that too, HDR under LE is not my expectation (at least for now). My TV is 4K non-HDR. My my mkv's are 4K HDR though so I'm more interested in getting HDR to SDR conversion which seems to work in Kodi 18 !?

And in getting 4K/60Hz.

If someone wants to see my logs (logging enabled and LE rebooted, then logs sent):

http://ix.io/1uzg

CAC-1070 does not sem to handle passthorugh audio to receiver correctly either (under LE8). Under latest firmware 7.55 it's total crap (almost no sound at all), under some older DTS/AC3 work fine but not DTS-HD nor TrueHD. No issues under Windows though... It seems the adapter seems to be more Windows-friendly.

Quote from mladen.perisic84

Hahaha, just now when you replied I was going to ask you do you have experience with CAC-1080 adapter.

It should arrive on Monday.

I think it's a kind of a bug.

What xrandr is returning:

KODI:~ # xrandr

Screen 0: minimum 8 x 8, current 3840 x 2160, maximum 32767 x 32767

DP1 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 1210mm x 680mm

1920x1080 60.00 + 50.00 59.94 30.00 25.00 24.00 29.97 23.98

4096x2160 30.00 25.00 24.00 29.97 23.98

3840x2160 30.00* 25.00 24.00 29.97 23.98

1920x1080i 60.00 50.00 59.94

1680x1050 59.88

1600x900 60.00

1280x1024 75.02 60.02

1440x900 59.90

1366x768 59.79

1280x800 59.91

1152x864 75.00

1280x720 60.00 50.00 59.94

1024x768 75.03 70.07 60.00

832x624 74.55

800x600 72.19 75.00 60.32

720x576 50.00

720x480 60.00 59.94

640x480 75.00 72.81 66.67 60.00 59.94

720x400 70.08

HDMI1 disconnected (normal left inverted right x axis y axis)

HDMI2 disconnected (normal left inverted right x axis y axis)

VIRTUAL1 disconnected (normal left inverted right x axis y axis)

So horizontal resolution of 4096 (my TV does support that but cuts side edges of the picture) and 3840 are indeed limited to 30Hz.

But let's see this:

KODI:~ # cat /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/edid | edid-decode

Extracted contents:

header: 00 ff ff ff ff ff ff 00

serial number: 4c 2d 90 0b 01 00 00 00 02 18

version: 01 03

basic params: 80 79 44 78 0a

chroma info: ee 91 a3 54 4c 99 26 0f 50 54

established: bd ef 80

standard: 71 4f 81 c0 81 00 81 80 95 00 a9 c0 b3 00 01 01

descriptor 1: 02 3a 80 18 71 38 2d 40 58 2c 45 00 50 1d 74 00 00 1e

descriptor 2: 01 1d 80 d0 72 1c 16 20 10 2c 25 80 50 1d 74 00 00 9e

descriptor 3: 00 00 00 fd 00 18 4b 0f 79 1e 00 0a 20 20 20 20 20 20

descriptor 4: 00 00 00 fc 00 53 41 4d 53 55 4e 47 0a 20 20 20 20 20

extensions: 01

checksum: a5

EDID version: 1.3

Manufacturer: SAM Model b90 Serial Number 1

Made in week 2 of 2014

Digital display

Maximum image size: 121 cm x 68 cm

Gamma: 2.20

RGB color display

First detailed timing is preferred timing

Display x,y Chromaticity:

Red: 0.6396, 0.3300

Green: 0.2998, 0.5996

Blue: 0.1503, 0.0595

White: 0.3125, 0.3291

Established timings supported:

720x400@70Hz 9:5 HorFreq: 31469 Hz Clock: 28.320 MHz

640x480@60Hz 4:3 HorFreq: 31469 Hz Clock: 25.175 MHz

640x480@67Hz 4:3 HorFreq: 35000 Hz Clock: 30.240 MHz

640x480@72Hz 4:3 HorFreq: 37900 Hz Clock: 31.500 MHz

640x480@75Hz 4:3 HorFreq: 37500 Hz Clock: 31.500 MHz

800x600@60Hz 4:3 HorFreq: 37900 Hz Clock: 40.000 MHz

800x600@72Hz 4:3 HorFreq: 48100 Hz Clock: 50.000 MHz

800x600@75Hz 4:3 HorFreq: 46900 Hz Clock: 49.500 MHz

832x624@75Hz 4:3 HorFreq: 49726 Hz Clock: 57.284 MHz

1024x768@60Hz 4:3 HorFreq: 48400 Hz Clock: 65.000 MHz

1024x768@70Hz 4:3 HorFreq: 56500 Hz Clock: 75.000 MHz

1024x768@75Hz 4:3 HorFreq: 60000 Hz Clock: 78.750 MHz

1280x1024@75Hz 5:4 HorFreq: 80000 Hz Clock: 135.000 MHz

1152x870@75Hz 192:145 HorFreq: 67500 Hz Clock: 108.000 MHz

Standard timings supported:

1152x864@75Hz 4:3 HorFreq: 67500 Hz Clock: 108.000 MHz

1280x720@60Hz 16:9

1280x800@60Hz 16:10

1280x1024@60Hz 5:4 HorFreq: 64000 Hz Clock: 108.000 MHz

1440x900@60Hz 16:10 HorFreq: 55500 Hz Clock: 88.750 MHz

1600x900@60Hz 16:9

1680x1050@60Hz 16:10 HorFreq: 64700 Hz Clock: 119.000 MHz

Detailed mode: Clock 148.500 MHz, 1872 mm x 1053 mm

1920 2008 2052 2200 hborder 0

1080 1084 1089 1125 vborder 0

+hsync +vsync

VertFreq: 60 Hz, HorFreq: 67500 Hz

Detailed mode: Clock 74.250 MHz, 1872 mm x 1053 mm

1920 2448 2492 2640 hborder 0

540 542 547 562 vborder 0

+hsync +vsync interlaced

VertFreq: 50 Hz, HorFreq: 28125 Hz

Monitor ranges (GTF): 24-75Hz V, 15-121kHz H, max dotclock 300MHz

Monitor name: SAMSUNG

Has 1 extension blocks

Checksum: 0xa5 (valid)

CTA extension block

Extension version: 3

94 bytes of CTA data

Video data block

VIC 97 3840x2160@60Hz 16:9 HorFreq: 135000 Hz Clock: 594.000 MHz

VIC 16 1920x1080@60Hz 16:9 HorFreq: 67500 Hz Clock: 148.500 MHz

VIC 31 1920x1080@50Hz 16:9 HorFreq: 56250 Hz Clock: 148.500 MHz

VIC 4 1280x720@60Hz 16:9 HorFreq: 45000 Hz Clock: 74.250 MHz

VIC 19 1280x720@50Hz 16:9 HorFreq: 37500 Hz Clock: 74.250 MHz

VIC 5 1920x1080i@60Hz 16:9 HorFreq: 33750 Hz Clock: 74.250 MHz

VIC 20 1920x1080i@50Hz 16:9 HorFreq: 28125 Hz Clock: 74.250 MHz

VIC 32 1920x1080@24Hz 16:9 HorFreq: 27000 Hz Clock: 74.250 MHz

VIC 33 1920x1080@25Hz 16:9 HorFreq: 28125 Hz Clock: 74.250 MHz

VIC 34 1920x1080@30Hz 16:9 HorFreq: 33750 Hz Clock: 74.250 MHz

VIC 93 3840x2160@24Hz 16:9 HorFreq: 54000 Hz Clock: 297.000 MHz

VIC 94 3840x2160@25Hz 16:9 HorFreq: 56250 Hz Clock: 297.000 MHz

VIC 95 3840x2160@30Hz 16:9 HorFreq: 67500 Hz Clock: 297.000 MHz

VIC 96 3840x2160@50Hz 16:9 HorFreq: 112500 Hz Clock: 594.000 MHz

VIC 101 4096x2160@50Hz 256:135 HorFreq: 112500 Hz Clock: 594.000 MHz

VIC 102 4096x2160@60Hz 256:135 HorFreq: 135000 Hz Clock: 594.000 MHz

VIC 98 4096x2160@24Hz 256:135 HorFreq: 54000 Hz Clock: 297.000 MHz

VIC 99 4096x2160@25Hz 256:135 HorFreq: 56250 Hz Clock: 297.000 MHz

VIC 100 4096x2160@30Hz 256:135 HorFreq: 67500 Hz Clock: 297.000 MHz

VIC 7 1440x480i@60Hz 16:9 HorFreq: 15734 Hz Clock: 27.000 MHz

VIC 22 1440x576i@50Hz 16:9 HorFreq: 15625 Hz Clock: 27.000 MHz

VIC 3 720x480@60Hz 16:9 HorFreq: 31469 Hz Clock: 27.000 MHz

VIC 18 720x576@50Hz 16:9 HorFreq: 31250 Hz Clock: 27.000 MHz

Audio data block

Linear PCM, max channels 2

Supported sample rates (kHz): 192 176.4 96 88.2 48 44.1 32

Supported sample sizes (bits): 24 20 16

Linear PCM, max channels 8

Supported sample rates (kHz): 192 176.4 96 88.2 48 44.1 32

Supported sample sizes (bits): 24 20 16

AC-3, max channels 6

Supported sample rates (kHz): 48 44.1 32

Maximum bit rate: 640 kHz

DTS, max channels 7

Supported sample rates (kHz): 96 88.2 48 44.1 32

Maximum bit rate: 1536 kHz

One Bit Audio, max channels 6

Supported sample rates (kHz): 44.1

Dolby Digital+, max channels 8

Supported sample rates (kHz): 48 44.1

MAT (MLP), max channels 8

Supported sample rates (kHz): 192 176.4 96 88.2 48 44.1

DTS-HD, max channels 8

Supported sample rates (kHz): 192 96 48

Speaker allocation data block

Speaker map:

FL/FR - Front Left/Right

LFE - Low Frequency Effects

FC - Front Center

BL/BR - Back Left/Right

BC - Back Center

RLC/RRC - Rear Left/Right of Center

Extended tag: Video capability data block

YCbCr quantization: No Data (0)

RGB quantization: No Data (0)

PT scan behaviour: No Data (0)

IT scan behaviour: Support both over- and underscan (3)

CE scan behaviour: Support both over- and underscan (3)

Vendor-specific data block, OUI 000c03 (HDMI)

Source physical address 1.1.0.0

Supports_AI

DC_36bit

DC_30bit

DC_Y444

Maximum TMDS clock: 300MHz

Extended HDMI video details:

3D present

3D-capable-VIC mask present

Base EDID image size is in units of 1cm

HDMI VIC 1 3840x2160@30Hz 16:9 HorFreq: 67500 Hz Clock: 297.000 MHz

HDMI VIC 2 3840x2160@25Hz 16:9 HorFreq: 56250 Hz Clock: 297.000 MHz

HDMI VIC 3 3840x2160@24Hz 16:9 HorFreq: 54000 Hz Clock: 297.000 MHz

HDMI VIC 4 4096x2160@24Hz 256:135 HorFreq: 54000 Hz Clock: 297.000 MHz

3D: Side-by-side (half, horizontal)

3D VIC indices: 1 2 3 4 7 8 9

VIC index 1 supports top-and-bottom

VIC index 2 supports top-and-bottom

VIC index 8 supports top-and-bottom

VIC index 9 supports top-and-bottom

VIC index 5 supports frame packing

VIC index 6 supports frame packing

Vendor-specific data block, OUI c45dd8 (HDMI Forum)

Version: 1

Maximum TMDS Character Rate: 600MHz

SCDC Present

Supports 12-bits/component Deep Color 4:2:0 Pixel Encoding

Supports 10-bits/component Deep Color 4:2:0 Pixel Encoding

Extended tag: YCbCr 4:2:0 capability map data block

VSD Index 0

VSD Index 13

VSD Index 14

VSD Index 15

Underscans PC formats by default

Basic audio support

Supports YCbCr 4:4:4

Supports YCbCr 4:2:2

3 native detailed modes

Detailed mode: Clock 85.500 MHz, 1872 mm x 1053 mm

1366 1436 1579 1792 hborder 0

768 771 774 798 vborder 0

+hsync +vsync

VertFreq: 59 Hz, HorFreq: 47712 Hz

Checksum: 0x75 (valid)

One or more of the timings is out of range of the Monitor Ranges:

Vertical Freq: 24 - 75 Hz

Horizontal Freq: 15625 - 135000 Hz

Maximum Clock: 594.000 MHz

You can clearly see that 4K is supported by my TV at 50 and 60Hz too. Why is this ignored by xrandr - no idea.

Long story short I added this to /storage/.config/autostart.sh:

#!/bin/sh

xrandr --newmode "3840x2160p60" 594.00 3840 4016 4104 4400 2160 2168 2178 2250 +hsync +vsync

xrandr --addmode DP1 3840x2160p60

And now I can select 60Hz for 4K in Kodi. But this is manual workaround.

I asked colleague with similar H-series Samsung 4K TV and Pentium G4560 (connected via DP port and my CAC-1070) to provide outputs from xrandr --verbose and was able to add ALL missing modes (4K and "true" 4K, 60Hz, 59,94Hz and 50Hz). Here are the definitions if someone is interested. I guess this can be good for Samsung TV's I guess ?

Add this to /storage/.config/autostart.sh:

#!/bin/sh

xrandr --newmode "3840x2160p60" 594.00 3840 4016 4104 4400 2160 2168 2178 2250 +hsync +vsync

xrandr --addmode DP1 3840x2160p60

xrandr --newmode "4096x2160p60" 594.00 4096 4184 4272 4400 2160 2168 2178 2250 +hsync +vsync

xrandr --addmode DP1 4096x2160p60

xrandr --newmode "4096x2160p50" 594.00 4096 5064 5152 5280 2160 2168 2178 2250 +hsync +vsync

xrandr --addmode DP1 4096x2160p50

xrandr --newmode "4096x2160p59" 593.41 4096 4184 4272 4400 2160 2168 2178 2250 +hsync +vsync

xrandr --addmode DP1 4096x2160p59

xrandr --newmode "3840x2160p50" 594.00 3840 4896 4984 5280 2160 2168 2178 2250 +hsync +vsync

xrandr --addmode DP1 3840x2160p50

xrandr --newmode "3840x2160p59" 593.41 3840 4016 4104 4400 2160 2168 2178 2250 +hsync +vsync

xrandr --addmode DP1 3840x2160p59

Then reboot. After reboot, all missing modes are visible in Kodi, tested and working fine.

Still it's an open question why on Coffee Lake UHD 630 graphics I have to add it manually and on Kaby Lake HD 610 it's working out of the box.

EDID is providing required data but XServer is ignoring some modes. Intel driver bug ?

As a final statement, I booted live Ubuntu 18.10 from USB stick and 4K is again limited to 30Hz.

Someone asked about CAC-1080. It arrived and does work better than CAC-1070.

Still some modes are missing but 3840/2160/60Hz is there out of the box, without adding any custom modes.

And finally all audio passthorugh formats are working under LE ! Even DTS-HD and TrueHD.

The only downside is that under Windows I'm only getting reduced HDMI range, no matter is set in Intel Windows drivers. So in TV I had to set HDMI range to reduced as well to have correct black level.

With CAC-1070 both full and reduced worked fine and I was able to get correct black levle on TV by setting TV option to corresponding setting.