No more HDMI output, is my Pi failed?

[ScK]

Hi guys,
it's some months that i'm using a Raspberry Pi B+ as a 24/7 home server.
Last week, after a blackout, it wasn't able to boot anymore.
I put the microsd into my laptop and found that the partitions were corrupted and there was some files advertised to be some TB in size and other issues, so i created a new partition table, put the backup image with dd on it and all was ok.
Today, as usual, i tried to ssh to my pi and the connection was refused, tried to use vnc and connection was refused, checked with nmap the ports of some services i configured and none of them was working...
The curious thing is that pinging at the ip address i set on it worked as usual (so, it boots)... but no services, neither the background process i've set up to read a button to shutdown the device.
So i tried to connect to the keyboard, connect to the monitor... and here starts the real problem.

When i initially installed the system from noobs i used a pc monitor through an hdmi to dvi-d cable, with the following video settings:

Code: Select all

# 1024 * 768 @ 60 Hz
hdmi_mode=16
hdmi_group=2
hdmi_drive=2
hdmi_force_hotplug=1
disable_overscan=0

These settings used to work also with an hdmi to vga converter, and with its audio output jack.
I then tried to reflash the original noobs back: still no video.
Downloaded, flashed and tried with both default settings and the config.txt from my backup: still no video.
So i did the same with raspbian-jessie and with the last version of noobs: still no video.

Should i assume my pi failed? Do i have to return it?
I don't have a composite video cable, will try to get one these days and see if it works...
Regards

[drgeoff]

I don't have a composite video cable, will try to get one these days and see if it works...
Regards

In theory, a composite video cable should be 75 ohm coax. In practice most of the phono to phono video cables use shielded cable normally used for audio and work fine for short lengths.

If you don't have a composite video cable but do have a stereo audio cable with phono plugs (typically white and red or black and red) each end, that will work just fine for a test.

[RaTTuS]

start again from a fresh raspbian
then follow the boot problems sticky viewtopic.php?f=28&t=58151
use HDMI display if you can ...

if it is dead then either get a new one or return it via a RMA to your original supplier

[ScK]

Connecting to serial port i was able to reinstall a fresh raspbian and reconfigure all services, now for headless use it's perfect.
However, still can't get video output... from hdmi port also no audio (while with an audio stereo jack i get audio through composite connector.
Any useful debug command i can try before surrending to RMA?

[rpdom]

What does "tvservice -s" show?

[ScK]

What does "tvservice -s" show?

Code: Select all

$ tvservice -s
state 0x12000a [HDMI DMT (16) RGB full 4:3], 1024x768 @ 60.00Hz, progressive