From MythTV Official Wiki
Jump to: navigation, search

High Definition Multimedia Interface

Wikipedia has an article on:

The nearly standard interface on an HDTV, it can pass both digital audio and video and can also incorporate HDCP DRM for protecting content.

In general, there are graphics cards with DVI-D and/or HDMI connectors. Note that if your graphics card only has VGA (i.e. analog) output, while there is no way to directly connect that card via HDMI to a display, your best option may be the Aluratek AVH100F VGA-to-HDMI adapter.

ATI graphics cards

Good support, mostly used DVI-HDMI cable to connect HDTV. Don't forget setup Underscan to remove black borders. Can be set that in /home/mythtv/.xinitrc:

/opt/bin/aticonfig --set-dispattrib=tmds2i,positionX:0
/opt/bin/aticonfig --set-dispattrib=tmds2i,positionY:0
/opt/bin/aticonfig --set-dispattrib=tmds2i,sizeX:1920
/opt/bin/aticonfig --set-dispattrib=tmds2i,sizeY:1080

nVidia graphics cards


There are many graphics cards that have one or two DVI-D connectors, e.g. the Asus EN9800GT TOP/HTDP. With a DVI-D-to-HDMI-adapter(-cable), you can connect those cards to the HDMI input of your LCD TV.

The Asus EN9800GT TOP/HTDP graphics card doesn't have any support for HDMI audio or for patching the SP/DIF output of e.g. the mainboard through to the HDMI cable.

NVIDIA has published a document on how to get our Audio output thru HDMI ftp://download.nvidia.com/XFree86/gpu-hdmi-audio-document/gpu-hdmi-audio.html

Intel graphics

The Intel X4500HD graphics engine supports HDMI 1080p output with sound without using the standard non-proprietary xorg driver. This makes an easy out-of-the box setup. You can't buy a graphics card with a X4500HD, but you can buy motherboards, desktops, and laptops using it. The MSI G41TM-E43 is an inexpensive motherboard that works out of the box: The boot sequence and grub display fine over HDMI, and X works without needing an xorg.conf. You may need to switch the audio output to use HDMI.