Running Knoppix 7.0.5 on USB. Hardware is a near-vanilla 64-bit Acer Aspire X1301 (memory upgrade) with integrated NVidia 9200 video and HD sound. Initial problem was that the nouveau driver would only give upto 1024x768 on VGA (detecting the NVidia card as '8200') when connected to a Samsung LE37 HD TV, and my attempts to follow support threads as to installing the proprietary NVidia drivers kept running into blocks with packages not being found. Much the same situation from a Kubuntu 12.04.2 USB. First cure is an HDMI lead (from the local 99p shop) to use the HDMI port from the integrated card ... and tell the TV not to overscan. However, whilst the vision is crisp there is no sound via the HDMI. Works for the Win7 on the Acer HD, so the communication channel is OK, but nothing from Knoppix. I have followed some support threads and installed Pulsaudio, but apart from cutting the channels to 2 (Master & Capture) in all the audio controls except Pulseaudio, I have no change. Pulseaudio shows two outputs, stereo and headphones, both at 100%, but no output to the TV. Any suggestions? [BTW: Pulseaudio volume can be set to 153%/+11db; but neither alsamixer, aumix nor the taskbar can set sound above 100%/0db. Is any value above 100% valid? If not, why does pulseadio allow it?]