XO-4 HDMI output
tom at carrott.org
Wed Jul 17 04:45:32 EDT 2013
How does the HDMI output on the XO-4 work? I've got a micro-HDMI to
regular HDMI cable and also an HDMI-DVI adaptor. I tried connecting to
the the HDMI input of a TV and that worked in both sugar and the
firmware. Quality was kinda poor (like it was doing some scaling, which
I guess it has to if it's doing mirror and filling both screens) and the
mouse pointer didn't show up on the TV. I didn't check the output of
xrandr in this configuration.
When I connect to a regular monitor via the DVI adaptor, the monitor
detects the presence of the laptop and goes to sleep. In the open
firmware, if I type 720p, I get the firmware on the screen. If I then
type bye, the laptop boots normally but there is no further output on
the screen. I don't see any additional displays in xrandr.
Unfortunately I forgot to try hdmi_ctl from
http://wiki.laptop.org/go/XO_4_HDMI_Debug I'll try that tomorrow.
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