[mythtv-users] Mythbuntu, Intel graphics and losing monitor when off

[Jerry]

On Mon, Aug 22, 2016 at 3:12 AM, Simon Hobson <linux at thehobsons.co.uk>
wrote:

> Richard Morton <richard.e.morton at gmail.com> wrote:
>
> > I've not seen this issue before, the system works fine if I boot with
> the TV on but when I turn off the monitor or switch it to another input and
> then return the TV is blank with no signal reported.
>
> Apart from all the other options you've had, IIRC there are gadgets
> available that sit in the HDMI lead and have the sole function of saving
> the EDID info from the TV/monitor and passing it to the computer when the
> TV is off.
>
> AIUI, TVs are supposed (according to the HDMI spec) to provide the EDID
> even when off (in power save, guess it would be hard when unplugged) or
> switched to another input. It seems that most don't - and these gadgets are
> there to work around such problems.
>
> I did a quick search for "edid saver" and quickly found that "we are not
> alone" with this problem, it looks like "edid emulator" might be a better
> search term.
>
>
I had a similar problem with my receiver and my television.  If I booted
with the television and receiver off, X would load but would get stuck on
the logon screen.  I have my system set to automatically log on and start
mythfrontend.  If I booted with everything on, I could switch back and
forth, but this probably varies for different video equipment.

What I had to do was to grab the EDID information using help from the
webpage below from the wiki.  There is probably an analogous method for
other video card manufacturers.

https://www.mythtv.org/wiki/Nvidia-cards_and_no_picture_when_box_is_on_before_the_TV

Hope that helps,

Jerry
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