Black Screen with 8.95.4.1 and 4k TVs

Hi cdu13a
Thx for your message.
For me also works perfect with 8.95.4.
With 8.95.4.1 i get black screen.
Iam interested, could you please give me your test image?

Big thx
RAD

ok give me a little bit and will message the link, which device you have?

Ok, big thx.
I have the beelink g1 ultimate box.

Will it auto update when the new fix comes out? I assume it will. It auto updated to get to the black screen version.

Dont know if my info is needed but here we go:

cat /sys/devices/virtual/amhdmitx/amhdmitx0/edid
Rx Brand Name: GSM
Rx Product Name: LG
Manufacture Week: 1
Manufacture Year: 2017
Physical size(cm): 160 x 90
EDID Version: 1.3
EDID block number: 0x1
blk0 chksum: 0x75
Source Physical Address[a.b.c.d]: 1.1.0.0
YCC support 0x03, VIC (native 255):
ColorDeepSupport 0xb8 10/12/16/Y444 1/1/0/1
16 31 4 19 5 20 3 2 18 32 33 34 21 1 93 94 95 98 99 100 95 94 93 98 353 352 358 357
Audio {format, channel, freq, cce}
{1, 1, 0x7f, 0x07}
{1, 7, 0x7f, 0x07}
{2, 5, 0x07, 0x00}
{7, 6, 0x1f, 0x00}
{9, 5, 0x02, 0x00}
{10, 7, 0x06, 0x00}
{12, 7, 0x7e, 0x00}
{11, 7, 0x54, 0x01}
Speaker Allocation: 0x5f
Vendor: 0xc03
MaxTMDSClock1 300 MHz
ColorMetry: 0xc0
SCDC: 0
RR_Cap: 0
LTE_340M_Scramble: 0
HDR DeepColor
checkvalue: 0x75260000

cat /storage/.config/autostart.sh
(
modprobe em28xx card=94;
echo “2040 8268” > /sys/bus/usb/drivers/em28xx/new_id
)

This modification is necessary to make my dvb device work.

cat /sys/devices/virtual/amhdmitx/amhdmitx0/config
cur_VIC: 353
VIC: 353 3840x2160p60hz
Colour depth: 10-bit
Colourspace: YUV420
Colour range: limited
EOTF: SDR
YCC colour range: limited
PLL clock: 0xc000029a, Vid clock div 0x000b0000
audio config: on
3D config: off

cat /sys/devices/virtual/amhdmitx/amhdmitx0/disp_cap
480p60hz
576p50hz
720p60hz
1080i60hz
1080p60hz
720p50hz
1080i50hz
1080p30hz
1080p50hz
1080p25hz
1080p24hz
2160p30hz
2160p25hz
2160p24hz
smpte24hz
smpte25hz
smpte30hz
smpte50hz420
smpte60hz420
2160p50hz420
2160p60hz420

cat /storage/.kodi/userdata/disp_cap
480p60hz
576p50hz
720p60hz
1080i60hz
1080p60hz
720p50hz
1080i50hz
1080p30hz
1080p50hz
1080p25hz
1080p24hz
2160p30hz
2160p25hz
2160p24hz
smpte24hz
smpte25hz
smpte30hz
smpte50hz420
smpte60hz420
2160p50hz420
2160p60hz420

It should auto update once the next release is available. if it does not manually updating is fairly easy.

@RAD

Here are test builds for a fix to the black screen issue

builds for the s912

https://github.com/cdu13a/CoreELEC/releases/download/rc1/CoreELEC-S912.arm-8.95.4.2rc1.tar

the s905

https://github.com/cdu13a/CoreELEC/releases/download/rc1/CoreELEC-S905.arm-8.95.4.2rc1.tar

Odroid C2

https://github.com/cdu13a/CoreELEC/releases/download/rc1/CoreELEC-Odroid_C2.arm-8.95.4.2rc1.tar

Le Potato

https://github.com/cdu13a/CoreELEC/releases/download/rc1/CoreELEC-LePotato.arm-8.95.4.2rc1.tar

1 Like

Big thx.
I will try and report here.

Black screen (“no signal”) on Philips 43PUT4900 with Nexbox x96 s905x with CE 8.95.4.1. Reverted back to 8.95.3 for a while.

# cat /sys/devices/virtual/amhdmitx/amhdmitx0/edid
Rx Brand Name: PHL
Rx Product Name: Philips
Manufacture Week: 32
Manufacture Year: 2015
Physcial size(cm): 128 x 72
EDID Verison: 1.3
EDID block number: 0x1
blk0 chksum: 0xa4
Source Physical Address[a.b.c.d]: 2.0.0.0
native Mode f1, VIC (native 255):
ColorDeepSupport 30
95 94 93 16 31 32 34 33 5 20 4 19 18 3 17 2 22 7 21 6 1 95 94 93 353 352
Audio {format, channel, freq, cce}
{1, 1, 7f, 7}
{2, 5, 7, 0}
{7, 1, 7, 7}
Speaker Allocation: 1
Vendor: 0xc03
MaxTMDSClock1 300 MHz
SCDC: 0
RR_Cap: 0
LTE_340M_Scramble: 0
  DeepColor
checkvalue: 0xa4b80000

In addition to black screen, sometimes notice that “down” key on CEC remote initiates “shutdown” for CE. Didn’t yet figured out, why.

Update: 8.95.4.2rc1 build by cdu13a fixed resolution issue for my setup.

Hi cdu13a
Till now look pretty good.
All are working again👍.

Big thx and have a nice day
RAD

I couldn’t see what was going on so think I interrupted install. Have to go back to install from sd card prior version.

You can’t make a connection over explorer?
For example \192.168.1.xxx\ , you must use the ip from your box.
Then copy the .tar file in the update folder and restarte the box.

There is 2 times a \ ahead from 192

Working for me so far.

OK confirmed that it is now working for me.

The text doesn’t look too crisp. Maybe it has been like that and I just didn’t notice.

as far as I m concerned its a avr matter. When I connect GT1 directly to tv(Samsung MU7002 4k TV) everything works. When I passthrough the avr(Yamaha RX-V483) no signal. Herte are the edid files:

Directly to TV
Rx Brand Name: SAM
Rx Product Name: SAMSUNG
Manufacture Week: 1
Manufacture Year: 2017
Physical size(cm): 142 x 80
EDID Version: 1.3
EDID block number: 0x1
blk0 chksum: 0x19
Source Physical Address[a.b.c.d]: 3.0.0.0
YCC support 0x03, VIC (native 255):
ColorDeepSupport 0xb8 10/12/16/Y444 1/1/0/1
95 16 31 4 19 5 20 32 33 34 93 94 98 99 100 7 22 3 18 95 94 93 98 352 353 357 358
Audio {format, channel, freq, cce}
{1, 1, 0x07, 0x07}
{2, 5, 0x07, 0x00}
{7, 5, 0x04, 0x00}
{10, 7, 0x07, 0x00}
Speaker Allocation: 0x01
Vendor: 0xc03
MaxTMDSClock1 300 MHz
ColorMetry: 0x3
SCDC: 0
RR_Cap: 0
LTE_340M_Scramble: 0
HDR DeepColor
checkvalue: 0x19490000

Through AVR
Rx Brand Name: SAM
Rx Product Name: SAMSUNG
Manufacture Week: 1
Manufacture Year: 2017
Physical size(cm): 142 x 80
EDID Version: 1.3
EDID block number: 0x1
blk0 chksum: 0x19
Source Physical Address[a.b.c.d]: 4.1.0.0
YCC support 0x03, VIC (native 255):
ColorDeepSupport 0xb8 10/12/16/Y444 1/1/0/1
95 16 31 4 19 5 20 32 33 34 93 94 98 7 22 3 18 95 94 93 98 352 353
Audio {format, channel, freq, cce}
{1, 1, 0x7f, 0x07}
{1, 7, 0x7f, 0x07}
{2, 5, 0x07, 0x00}
{7, 6, 0x1f, 0x00}
{9, 5, 0x02, 0x00}
{10, 7, 0x06, 0x00}
{12, 7, 0x7e, 0x00}
{11, 7, 0x54, 0x01}
Speaker Allocation: 0x5f
Vendor: 0xc03
MaxTMDSClock1 300 MHz
ColorMetry: 0x3
SCDC: 0
RR_Cap: 0
LTE_340M_Scramble: 0
HDR DeepColor
checkvalue: 0x19480000

Edit: last update seems to fave fix the problem

Black screen is gone. But now I only get 2160p30 and not 2160p60 as option

1 Like

Here you got the link for CoreELEC-S912.arm-8.95.4 but the one that @cdu13a posted should work cause It worked for me.

Thx anyway :+1::v:

No 2160p/60hz option

Here is another set of test images.

If I could get some feedback on these that would be great. Hopefully we will be able to make an official 8.95.4.2 release if everything is good with these images.

Odroid C2
https://github.com/cdu13a/CoreELEC/releases/download/rc1/CoreELEC-Odroid_C2.arm-8.95.4.2rc2.tar

S905
https://github.com/cdu13a/CoreELEC/releases/download/rc1/CoreELEC-S905.arm-8.95.4.2rc2.tar

S912
https://github.com/cdu13a/CoreELEC/releases/download/rc1/CoreELEC-S912.arm-8.95.4.2rc2.tar

If requested I can build a test image for the other supported platforms.

1 Like