HDMI no video signal

Keredo · August 23, 2016 at 4:13 PM

Hello everyone,

I hope so badly, someone could help me. Currently I try to setup my htpc with libreelec 7.9 (exactly: LibreELEC-Generic.x86_64-7.90.004.img ), but I fail at the first step... I couldn't get my TV to display any hdmi signal.

When I install libreelec with a VGA display connected, Everything seem to work, but with hdmi only nothing works.

My system:

Board: ASRock E350M1
ASRock > E350M1

With onboard graphics:
AMD Radeon HD 6310

dmesg also returns strange errors:

Quote

[ 7.631726] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 87
[ 7.631739] Raw EDID:
[ 7.631747] 00 ff ff ff ff ff ff 00 34 a9 29 c3 01 01 01 01
[ 7.631752] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 7.631757] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 7.631762] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 7.631767] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 7.631772] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 7.631776] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 7.631781] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 7.631793] radeon 0000:00:01.0: HDMI-A-1: EDID block 0 invalid.
[ 7.631803] [drm:radeon_dvi_detect] *ERROR* HDMI-A-1: probed a monitor but no|invalid EDID
[ 7.903019] [drm:radeon_dvi_detect] *ERROR* HDMI-A-1: probed a monitor but no|invalid EDID
[ 8.721031] r8169 0000:04:00.0 eth0: link up
[ 8.721062] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 8.728045] 8021q: 802.1Q VLAN Support v1.8
[ 9.735337] snd_hda_intel 0000:00:01.1: IRQ timing workaround is activated for card #0. Suggest a bigger bdl_pos_adj.
[ 12.799632] [drm:radeon_dvi_detect] *ERROR* HDMI-A-1: probed a monitor but no|invalid EDID
[ 13.122225] [drm:radeon_dvi_detect] *ERROR* HDMI-A-1: probed a monitor but no|invalid EDID
[ 13.397904] [drm:radeon_dvi_detect] *ERROR* HDMI-A-1: probed a monitor but no|invalid EDID
[ 22.814271] [drm:radeon_dvi_detect] *ERROR* HDMI-A-1: probed a monitor but no|invalid EDID

Display More

I hope someone could help me to set the system up.

Greetings
Keredo

**Klojum** · August 23, 2016 at 5:46 PM Official Post

For starters, there are a couple of things to keep in mind:
- The Asrock E350M1 is not the newest piece of machinery anymore
- AMD graphics have a history of 'ups & downs' in video driver support
- Sometimes HDMI cables can get (micro)fractures rendering video and/or audio not working.

Try connecting your TV directly to your E350-box with HDMI ( and bypass any AVR receiver), and start LibreELEC.
See if you can log in via SSH. If so, give us the results of the following command(s):

Code

xrandr | pastebinit
dmesg | pastebinit
pastebinit ~/.kodi/temp/kodi.log

Keredo · August 23, 2016 at 5:55 PM

Hello Klojum,

thank you very much for your response.

The box is directly connected to the tv. I've also tried the stable version of libreelec... same result

JESM

Quote

Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 8192 x 8192
HDMI-0 connected primary (normal left inverted right x axis y axis)
1024x768 60.00
800x600 60.32 56.25
848x480 60.00
640x480 59.94
HDMI-1 disconnected (normal left inverted right x axis y axis)
VGA-0 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 338mm x 270mm
1280x1024 60.02*+ 75.02 72.05
1152x864 75.00
1024x768 75.08 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32
640x480 75.00 72.81 66.67 60.00
720x400 70.08
640x350 70.07

Display More

dDhN
AHFG

Greetings
Keredo

**Klojum** · August 23, 2016 at 6:17 PM Official Post

HDMI-1 disconnected (normal left inverted right x axis y axis)
VGA-0 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 338mm x 270mm

HDMI is to be connected, not VGA.
Whether you get a display or not.

I assume you know it's best to turn on your TV first, and then start up your E350 box?

Keredo · August 23, 2016 at 6:41 PM

Hi,

my fault... stupid me
I switched the display before I generate the logs...

Here is the log with hdmi connected tv and switched on... but no change (no picture) at all

QEJW

Quote

Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 8192 x 8192
HDMI-0 connected primary (normal left inverted right x axis y axis)
1920x1080 50.00 + 60.00 59.94 24.00 23.98
1920x1080i 60.00 50.00 59.94
1280x720 60.00 50.00 59.94
720x576 50.00
720x576i 50.00
720x480 60.00 59.94
720x480i 60.00 59.94
640x480 60.00 59.94
HDMI-1 disconnected (normal left inverted right x axis y axis)
VGA-0 disconnected 1280x1024+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1280x1024 (0x55) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz

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**Klojum** · August 23, 2016 at 7:07 PM Official Post

I also overlooked HDMI-0... My bad.

Do you get any display when connecting your PC monitor to the box?
Maybe the TV is acting a bit allergic.

Keredo · August 23, 2016 at 7:30 PM

Hi,

I couldn't believe it, but the problem seems to be the cable.... I feel like a bloody newbie not checking this first
But you gave to solution: the xrandr brought me first this line:

(old cable)

Quote

LibreELEC:~ # xrandr
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 8192 x 8192
HDMI-0 connected primary (normal left inverted right x axis y axis)
1024x768 60.00
800x600 60.32 56.25
848x480 60.00
640x480 59.94
HDMI-1 disconnected (normal left inverted right x axis y axis)
VGA-0 disconnected 1280x1024+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1280x1024 (0x55) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz

Display More

The new cable gave me:

Quote

LibreELEC:~ # xrandr
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 8192 x 8192
HDMI-0 connected primary (normal left inverted right x axis y axis)
1920x1080 50.00 + 60.00 59.94 24.00 23.98
1920x1080i 60.00 50.00 59.94
1280x720 60.00 50.00 59.94
720x576 50.00
720x576i 50.00
720x480 60.00 59.94
720x480i 60.00 59.94
640x480 60.00 59.94
HDMI-1 disconnected (normal left inverted right x axis y axis)
VGA-0 disconnected 1280x1024+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1280x1024 (0x55) 108.000MHz +HSync +VSync
h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 63.98KHz
v: height 1024 start 1025 end 1028 total 1066 clock 60.02Hz

Display More

First I thought it was just a mistake, but I can reproduce it again and again... Stupid faulty cable

Thank you very much for your help.

Greetings

HDMI no video signal

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