On Tue, Jul 17, 2012 at 9:33 PM, Doug Lytle <support at drdos.info> wrote: > Gordon McCrae wrote: >> >> I had a similar problem on Acer REVOs recently. > > > I'm with Gordon, Under Mandriva and Mageia, I've had to use alsamixer to > un-mute the HDMI Surely if the sound was muted it wouldn't work in mythtv either?