@szalay, I was trying to connect a LCD display using i2c. Also, I couldn’t install lcdproc properly until I installed gcc and dpkg. See this topic to solve that: LCD through i2c
@mcobit claims to have one connected, but he/she used one GPIO pin for every LCD control pin, so mcobit connected the LCD without using i2c, only using GPIO, which lets you only a few pins available for other proposes (like IR remote, or control buttons).
I don’t know what’s going wrong, but it has been two months since I tried to connect the display, and I don’t remember much of what I did.
I wish this could help you.