BLACK screen on any video output [KINDA SOLVED]

yeyeto2788

Hi guys, I'm not an expert in linux that is why I need your help.

Yesterday I worked with the OPi Mini 2 and take some screenshots of the OS and data and so on, but today I wanted to configure the wifi dongle and it was imposible since I can not see anything on any video output.

I tried AV output and nothing then HDMI output and also nothing so I thought probably I made something wrong shutting down the OPi but I also try making a new fresh image on other SD card and guess what....NOTHING.

I dig on my electronic stuff and found a USB-TTL converter to plug it on the OPi and below you will see the output I got. It stuck there for hour and nothing else. It is still waiting for a video signal and waiting for finishing to boot up.

HELP!!!!!

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I will put the code on the reply.
POSSIBLE ANSWER

Hi! I think that the problem could be the SD card.


I used the same kind of SD card on a Raspberry Pi 2 and today I had a problem on booting the Raspberry Pi as I had with the OPi. While I was waiting for the RasPi 2 to get it boot up I plugged the OPi to see if for some miracle it could work and guess what... IT'S WORKING AGAIN.


I supposed it is the SD card. I'm posting a picture od the SD card I'm using.

I thought I could use any card as long as it is 8GB and at least class 4. Has anyone and idea why maybe the SD card would fail?

yeyeto2788

This is the last part of the output from the serial port.

yeyeto2788

Here is the complete code on a .pdf file.

magicse

ma be truble here
hub 1-0:1.0: 1 port detected
sunxi-ehci sunxi-ehci.2: SW USB2.0 'Enhanced' Host Controller (EHCI) Driver
sunxi-ehci sunxi-ehci.2: new USB bus registered, assigned bus number 2
sunxi-ehci sunxi-ehci.2: irq 106, io mem 0xf1c1b000
sunxi-ehci sunxi-ehci.2: USB 0.0 started, EHCI 1.00
ehci_irq: highspeed device connect

yeyeto2788

How can I solve the problem? I have just the keyboard and the HDMI cable plugged in.

yeyeto2788

this is the code I'm getting

1. [    0.977639] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
   
2. [    1.005049] sunxi-ehci sunxi-ehci.1: SW USB2.0 'Enhanced' Host Controller (EHCI) Driver
   
3. [    1.014218] sunxi-ehci sunxi-ehci.1: new USB bus registered, assigned bus number 1
   
4. [    1.023124] sunxi-ehci sunxi-ehci.1: irq 104, io mem 0xf1c1a000
   
5. [    1.040034] sunxi-ehci sunxi-ehci.1: USB 0.0 started, EHCI 1.00
   
6. [    1.047126] hub 1-0:1.0: USB hub found
   
7. [    1.051323] hub 1-0:1.0: 1 port detected
   
8. [    1
   

Copy code

Thats's the end of the hole code output.

yeyeto2788

magicse replied at 2015-9-11 21:33
ma be truble here
hub 1-0:1.0: 1 port detected
sunxi-ehci sunxi-ehci.2: SW USB2.0 'Enhanced' Host C ...

I have tried with the keyboard plugged in and with out the keyboard. Could it be that I have to upgrade something on the OPi?

Have you had this problem before?

palmercr

I have the same problem on Orange Pi plus with Raspbian. It just stops after

[    1.008635] sunxi-ehci sunxi-ehci.1: SW USB2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.017802] sunxi-ehci sunxi-ehci.1: new USB bus registered, assigned bus number 1
[    1.026723] sunxi-ehci sunxi-ehci.1: irq 104, io mem 0xf1c1a000
[    1.050028] sunxi-ehci sunxi-ehci.1: USB 0.0 started, EHCI 1.00
[    1.057118] hub 1-0:1.0: USB hub found
[    1.061314] hub 1-0:1.0: 1 port detected
[

The SD card was supplied with the OPi.

palmercr

Seems to be a faulty USB hub chip. It has all the correct voltages but the 12Mhz  clock crystal does not oscillate.