On Aug 18, 2010, at 7:25 PM, Clark Martin wrote:
I have my G4 MacMini connected to a 52" LCD TV via HDMI and I have
many resolutions to pick from and at 1920 x 1080 it fills the screen.
This is a slightly different issue. You're using a DVI-to-HDMI adapter
cable, and the 52" LCD has many more pixels than the maximum
resolution of 1920x1080 that your G4 Mini is outputting. I'm still
surprised that you say you're getting edge-to-edge video, are you
certain about that? Often the black strips are very dark and can blend
into the border of the TV. What version of the G4 Mini do you have,
and what OS version are you using?
As far as using a G4 Mini at 1920x1080 given the hardware limitations
of the video card, here are some links that may help:
This is the hardware specification for the G4 Mini. The critical
specification is a note at the bottom of page 30 that says: "The Mac
mini supports DVI video output for digital resolutions up to 1920x1200
with a maximum pixel clock
of 154MHz coherent TMDS or 135MHz non-coherent TMDS."
<http://developer.apple.com/legacy/mac/library/documentation/Hardware/Developer_Notes/Macintosh_CPUs-G4/MacMiniG4/MacMiniG4.pdf
>
This is how one person setup a custom resolution for the G4 Mini at
1920x1080 using SwitchResX:
<http://www.avsforum.com/avs-vb/archive/index.php/t-792248.html>
I know Cliff is probably using a straight DVI-D/DVI-D cable, but for
anyone using a DVI-to-HDMI adapter cable, be warned that all DVI-to-
HDMI cables are NOT identical, there are many variations on how cables
are wired, and there is no firm specification for handling audio.
AFAIK the G4 Mini can NOT output audio across DVI-to-HDMI which is not
how HDMI is supposed to work. You'd need a separate audio cable and
the ability of the TV/Monitor to handle this audio separately from the
HDMI video. More modern Macs CAN output both audio and video over DVI-
to-HDMI adapter cables provided that you have one of the "correct"
cables, and again, there are no standard cables, so be very careful.
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