Raspbery PI with HDMI

Today, I was testing my RPi, just to check that “everything is alright”. I bought a cheap 1A/5V micro USB power supply from China (from a well-known auction website) and wrote the official raspbian image. I plugged my new VGA/HDMI flat screen, and booted the RPi. Then…. nothing.

Actually, to make it work, I had to modify the config.txt file, as said by Aptoitos on the website rs-online :

hdmi_drive=2
config_hdmi_boost=4
hdmi_group=1
hdmi_mode=16
hdmi_force_hotplug=1
disable_overscan=0

After adding and uncommenting those lines in the config.txt file, it worked fine (although I still have to push the auto button of my screen to tell it something great is coming from HDMI input).

I can’t tell exactly what was the problem (signal too low to be recognized, bad display mode, or something else) but then it works fine, and now I’ll have to wait for a USB keyboard :)

For more information about which setting changes what : http://www.rs-online.com/designspark/electronics/knowledge-item/what-you-need-to-get-your-raspberry-pi-up-and-running