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HDMI only black screen

Posted: Fri Feb 12, 2016 7:19 pm
by Barbieboy
Hello, getting just black via HDMI, been into to config and it says to 'uncomment' the problem. I deleted the line and no difference, guess I wasn't supposed to do that and can no longer paste it back in :/

Help !

Pi 2 / Raspbian / NOOBS / 7" Official screen

Re: HDMI only black screen

Posted: Fri Feb 12, 2016 7:56 pm
by beta-tester
Barbieboy wrote:Hello, getting just black via HDMI, been into to config and it says to 'uncomment' the problem. I deleted the line and no difference, guess I wasn't supposed to do that and can no longer paste it back in :/

Help !

Pi 2 / Raspbian / NOOBS / 7" Official screen
those are the common config.txt options to work for most of the HDMI TV's

Code: Select all

hdmi_force_hotplug=1
config_hdmi_boost=4
hdmi_drive=2
but i don't know if it is applicable for 7" official screen.
do you have the problems just at booting (even no NOOBS screen) or only in Raspbian?
do you use the newest NOOBS 1.7.0? (or an old one that does not support official 7" screen)

Re: HDMI only black screen

Posted: Sat Feb 13, 2016 12:27 pm
by Barbieboy
Thanks for pointing out there is a newer NOOBS :) Have installed that and makes no difference. 7" screen works fine apart from the black borders. HDMI still a black blank

Pi 2 / NOOBs 1.7 / Raspbian / 7" Screen / J.River Media Center 20 / ifi Micro iDAC-2

Re: HDMI only black screen

Posted: Sat Feb 13, 2016 1:16 pm
by beta-tester
Barbieboy wrote:Thanks for pointing out there is a newer NOOBS :) Have installed that and makes no difference. 7" screen works fine apart from the black borders. HDMI still a black blank
disable_overscan=1
Pi 2 / NOOBs 1.7 / Raspbian / 7" Screen / J.River Media Center 20 / ifi Micro iDAC-2
to disable the overscan (black borders), add to your config.txt

Code: Select all

disable_overscan=1
for the dual display, see dual display usage

Re: HDMI only black screen

Posted: Sat Feb 13, 2016 7:56 pm
by Barbieboy
Thanks, I put that code in, but black borders are still there

Re: HDMI only black screen

Posted: Sat Feb 13, 2016 8:18 pm
by fruitoftheloom
Barbieboy wrote:Thanks, I put that code in, but black borders are still there
NOOBS has an editor for config.text

https://github.com/raspberrypi/noobs/bl ... /README.md

Re: HDMI only black screen

Posted: Sat Feb 13, 2016 8:45 pm
by Spookywatson
I suggest taking these actions
1. are both green and red light on and not flashing because if they are the os has not installed right reinstall it
2. change the hdmi cable it might be the problem
3. try a different tv or monitor because the tv/monitor might not be liking the resolution
if none of those help then i dont know what to say sorry :|