[inselwissen]

Posting here instead of opening up a new thread because I'm in a scarily similar position.

My new Raspberry Pi 2 arrived today. I was able to install NOOBS on the SD card (Class 10) no problem whatsoever, but both OSMC and OpenELEC don't output HDMI video after their splash screens. Tried both the standard noobs install and the Win32DiskImager route. Same problem.

Apart from the black screen, everything seems to be working fine. The LEDs blink like they're supposed to and when I boot up OpenELEC, it's even accessible as a network share in Windows 7.
I've tried every combination of config.txt values, tried various HDMI cables and various monitors/TVs and nothing's worked so far. Any ideas?

[popcornmix]

Does your TV support 1080p (and not just 1080i)?
Report output of

Code:

tvservice -s
tvservice -m CEA
tvservice -m DMT

and post a debug log (wiki).

[wrxtasy]

just incase the above does not work ...

Code:

tvservice --modes=CEA
tvservice --modes=DMT

[steve1977]

I am facing the same problem. No idea what is going on, but I have RPi connected via HDMI-DVI to an old television. Unfortunately, my screen stays black. Please see below output:

state 0x12001a [HDMI DMT (81) RGB full 16:9], 1366x768 @ 60.00Hz, progressive

Group CEA has 6 modes:
(native) mode 1: 640x480 @ 60Hz 4:3, clock:25MHz progressive
mode 2: 720x480 @ 60Hz 4:3, clock:27MHz progressive
mode 3: 720x480 @ 60Hz 16:9, clock:27MHz progressive
mode 4: 1280x720 @ 60Hz 16:9, clock:74MHz progressive
mode 17: 720x576 @ 50Hz 4:3, clock:27MHz progressive
mode 18: 720x576 @ 60Hz 16:9, clock:27MHz progressive

Group DMT has 4 modes:
mode 4: 640x480 @ 60Hz 4:3, clock:25MHz progressive
mode 9: 800x600 @ 60Hz 4:3, clock:40MHz progressive
mode 16: 1024x768 @ 60Hz 4:3, clock:65MHz progressive
mode 81: 1366x768 @ 60Hz 16:9, clock:85MHz progressive


I believe it used to work before, but not sure whether I have changed anything else in the meantime. Any idea what I can try?

[popcornmix]

I am facing the same problem. No idea what is going on, but I have RPi connected via HDMI-DVI to an old television. Unfortunately, my screen stays black. Please see below output:

state 0x12001a [HDMI DMT (81) RGB full 16:9], 1366x768 @ 60.00Hz, progressive

Group CEA has 6 modes:
(native) mode 1: 640x480 @ 60Hz 4:3, clock:25MHz progressive
mode 2: 720x480 @ 60Hz 4:3, clock:27MHz progressive
mode 3: 720x480 @ 60Hz 16:9, clock:27MHz progressive
mode 4: 1280x720 @ 60Hz 16:9, clock:74MHz progressive
mode 17: 720x576 @ 50Hz 4:3, clock:27MHz progressive
mode 18: 720x576 @ 60Hz 16:9, clock:27MHz progressive

Group DMT has 4 modes:
mode 4: 640x480 @ 60Hz 4:3, clock:25MHz progressive
mode 9: 800x600 @ 60Hz 4:3, clock:40MHz progressive
mode 16: 1024x768 @ 60Hz 4:3, clock:65MHz progressive
mode 81: 1366x768 @ 60Hz 16:9, clock:85MHz progressive


I believe it used to work before, but not sure whether I have changed anything else in the meantime. Any idea what I can try?

Only guessing, but try:
config_hdmi_boost=7

Or:
hdmi_drive=1

Or:
hdmi_drive=2

Or:
hdmi_group=1
hdmi_mode=1
hdmi_force_mode=1

Or:
hdmi_group=2
hdmi_mode=4
hdmi_force_mode=1

If any of those produce an image it might help identify what the issue is.

[steve1977]

Thanks. I have added the following and now have a picture. It feels though that the picture quality is not as good as it should be. Could this be related to the configurations?

hdmi_safe=1
config_hdmi_boost=4

[popcornmix]

Thanks. I have added the following and now have a picture. It feels though that the picture quality is not as good as it should be. Could this be related to the configurations?

hdmi_safe=1
config_hdmi_boost=4

I suspect you are running at VGA (640x480) resolution. Run "tvservice -s" to confirm.
Did any of the options I suggested work?

[steve1977]

You are right, it is now running 640x480. HDMI DMT (4) RGB full 4:3.

Let me try your suggestions and report back.

[steve1977]

Thanks again. I have tried the following per your suggestion with some success:

*** config_hdmi_boost=7

does not work

*** hdmi_drive=1

does not work

*** hdmi_drive=2

does not work

*** hdmi_group=1
*** hdmi_mode=1
*** hdmi_force_mode=1

works

*** hdmi_group=2
*** hdmi_mode=4
*** hdmi_force_mode=1

works


Any thoughts about a potential solution. Shall I change the config.txt to one of these to make it work? Thanks in advance!!!

[popcornmix]

Any thoughts about a potential solution. Shall I change the config.txt to one of these to make it work? Thanks in advance!!!

Okay, so hdmi drive (HDMI or DVI signalling) doesn't help. Boost doesn't help (you would try with config_hdmi_boost=11 just in case).
The default monitor mode for your display (1366x768) is not working. Try the others. We know:

Code:

hdmi_group=2
hdmi_mode=4
hdmi_force_mode=1

So try with hdmi_mode changed to 9 and 16 to see if either of those work.

[steve1977]

Thanks, why you say the default mode is 1366x768. I believe the display can only do 720p. Could this be the issue?

[ActionA]

1366x768 is a common native resolution used by TV's that only support up to 720p.

[popcornmix]

Thanks, why you say the default mode is 1366x768. I believe the display can only do 720p. Could this be the issue?

Your monitor is reporting it can handle 1366x768 (and that it is preferred) so it should support it.
However it won't be the first time we've found monitors that report incorrect settings.

[steve1977]

Thanks. I will try some of the suggested settings soon. Are we still at 640x480 or did any of above get me a better resolution already? It is actually a TV and not a monitor. Thanks again for all your guidance and Openelec development.

[steve1977]

Any thoughts about a potential solution. Shall I change the config.txt to one of these to make it work? Thanks in advance!!!

Okay, so hdmi drive (HDMI or DVI signalling) doesn't help. Boost doesn't help (you would try with config_hdmi_boost=11 just in case).
The default monitor mode for your display (1366x768) is not working. Try the others. We know:

Code:

hdmi_group=2
hdmi_mode=4
hdmi_force_mode=1

So try with hdmi_mode changed to 9 and 16 to see if either of those work.

Thanks so much for your continued guidance. Boost-11 did not work. Bot mode 9 and 16 are working. Any of these are actually giving me 720p? Any other idea how to get the native resolution? The odd thing is that it actually used to work some months ago and I have no idea what is different since then.