Hot answers tagged hdmi
I used to see problems similar to this on old Gnome 2 while playing with compiz, the window manager would need to be restarted sometimes, logging out & back in works, or restarting the window manager might work too. Xubuntu / XFCE uses the xfwm4 window manager, and it's got an option --replace that might work. Try: xfwm4 --replace & in a terminal ...
I had the very same problem installing Lubuntu on a new media center PC I built recently with an embedded A4-5000. I had to download PulseAudio in order to change the default audio output (if I recall it was trying to do SPDIF) to HDMI out. Why it does not do this automatically I don't know. I also had the crackling noise you mentioned when I finally got my ...
Kinda stupid that I can't just comment, but whatever. It might be an overscan problem. There should be a 'just scan' option on your TV. If not, it might be an overscanning problem with Ubuntu, which can be set in xorg config settings. Does your mouse 'hit' the top of the screen? Or does it go past the top?
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