[mythtv-users] Intel Graphics No Signal when TV Turned On Over HDMI

[Daniel Frey]

I could previously generate a xorg.conf file for other chipsets like nvida,
but this no longer seems to be the case with Intel.  In it I would tell it
ignore the EDID events and such, and that always seemed to tell the card
not react to anything the TV did. Is there no such way to do this any
longer with Intel graphics?

On Mon, Feb 29, 2016 at 2:14 PM Curtis Gedak <gedakc at gmail.com> wrote:

> On 16-02-29 12:02 PM, Daniel Frey wrote:
> > I have been fighting this for a few weeks, but I can't seem to get Xorg
> to
> > wake up when the TV gets turned back on.  This box is an ECS Liva X2
> (Intel
> > Braswell architecture) running the first beta of Mythbuntu 16.04.  I
> fought
> > with this on Xubuntu 15.10 as well.
> >
> > Basically, after you turn off the tv and then attempt to turn the TV back
> > on, you get a black screen and, on my tv, a floating box indicating No
> > Signal.  The only way to get it back on is to ssh in and restart lightdm.
> > I tried some scripts that force xrandr to continually, poll, but that
> > didn't help either.
>
> I have a family member who experienced a similar problem with an Intel
> Core i5-4430 CPU with HD 4600 graphics and an older Sharp 46" TV.
>
> To work around the problem she had to turn off the TV, wait to hear a
> "click" sound indicating the TV had completely powered down.  Next she
> could press the enter key to have MythTV change screens and then turn
> the TV on and it would work correctly.
>
> You might try this or a different combination to see if this would work
> for your situation.
>
> Curtis
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