[NTLUG:Discuss] Video Output to HDMI on Laptop

[agoats at compuserve.com]

I can't vouch for HDMI, but on VGA on my laptop, I have to have the 
cables connected and the TV live in order for the laptop to detect the 
external VGA interface during boot. To get everything to work right:

 1. Turn off laptop and connect external video cable (VGA, HDMI).
 2. Turn TV to appropriate input device (VGA, HDMI). It seems the BIOS
    probes for something actually connected to the external video
    connector and not all TV's will acknowledge this if they aren't
    turned to the correct input.
 3. Turn laptop on (BIOS detects the external video at this point)
 4. Continue boot up to OS of choice (this is true for Ubuntu, Slackware
    and Windows XP). The OS gets fed there is an additional external
    video device from the BIOS.
 5. Set up 2nd video, which may require doing the function key and
    external video key on the laptop.

I'm assuming the HDMI will behave the same as VGA in the above.

Good luck!

Alvin


On 12/24/2012 09:46 PM, Dennis wrote:
> Attempting to use the HDMI output on my HP Laptop running Fedora 14 to
> connect to the TV monitor.  What I have so far:
>
> xrandr
>    LVDS-1 -- screen, has multiople resolutions and working fine
>    VGA-1  -- disconnected
>    DVI-D-1 -- disconnected
>    HDMI-1 -- disconnected
>
> Fedora is evidently detecting the HDMI interface from the above.
>
> I attempted to activate the HDMI with the command
>    xrandr --output HDMI-1
> got back the prompt with no error message, but on xrandr display the HDMI is
> still disconnected.
>
> I have attempted this both with the TV connected and without, so not sure of
> what is the issue (besides headspace).
>
> I have also attempted to use the System Settings - Display & Monitor - Size
> & Orientation.  It shows the above four connections, but when clickin go
> HDMI-1 the other options are blocked out and I am not able to specify
> values.
>
> BIOS has no setting for the HDMI interface.
>
> Appreciate guidance.
>
> Dennis
>
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