[mythtv-users] Nvida card choice for mythtv and gaming

Deyan mythtv at bektchiev.net
Wed May 27 00:24:42 UTC 2020


On Thu, May 14, 2020 at 7:17 AM Jim Abernathy <jfabernathy at gmail.com> wrote:

>
> On 5/14/20 9:38 AM, David Hampton wrote:
> > On Fri, 2020-05-15 at 01:11 +1200, Stephen Worthington wrote:
> >> On Thu, 14 May 2020 08:47:31 -0400, you wrote:
> >>
> >>> I did discover that some of the required settings do not make
> >>> sense. If my
> >>> system is not running mythfrontend then I can leave the power
> >>> management in
> >>> Presentation mode which turns off DPMS. However, in Mythfrontend,
> >>> this will
> >>> not work and I can't get mythtv to come out of blank mode. I have
> >>> to do
> >>> Ctl-Alt-F1 and login to CLI and reboot.
> >> You could probably use xrandr or xset from Ctrl-Alt-F1 to unblank it.
> >> Something like:
> >>
> >> xrandr -d :0 --output DFP-0 --auto
> >>
> >> or
> >>
> >> xset -display :0 dpms on
> >>
> >>> What I have found works in all cases is Screensaver installed and
> >>> disabled,
> >>> and DPMS enabled with all the timers set to Never.
> >>>
> >>> Jim A
> >> I am guessing this is why I have these in my /etc/X11/xorg.conf:
> >>
> >> Section "Monitor"
> >>          Identifier "Sony TV"
> >>          Option "DPMS"   "true"
> >> EndSection
> >>
> >> Section "ServerFlags"
> >>          Option "BlankTime"              "0"
> >>          Option "StandbyTime"    "0"
> >>          Option "SuspendTime"    "0"
> >>          Option "OffTime"                "0"
> >> EndSection
> >>
> >> I have had them there for many years, but recently I was scratching
> >> my
> >> head wondering why.  I can see why I had the times set to 0, but just
> >> why I still had DPMS enabled was bothering me.
> > Interesting.  I just checked one of my frontends and I have this
> > instead:
> >
> > Section "Extensions"
> >      Option  "DPMS"     "false"
> > EndSection
> >
> > I have no recollection why this is in the extensions section instead of
> > a monitor section but it works.
> >
> > David
>
> I suspect that the reaction to HDMI event and the behavior that
> different AVRs  exhibit is where the problem lies.
>
> Also I have notices that Rasbian Buster only requires xscreensaver to be
> installed and then disabled to work properly with my AVR. But there is
> no Power management with a RPi.
>
> The Desktop environment is a variable here as well. Bottom line is too
> many factors are or can be involved.
>
> screensaver, DPMS, applications, X11.
>
> I clearly don't understand any of it, but my experiments gives me a
> solution.
>
> Jim A


 Maybe you've already solved your issue, however I've had to deal with a
similar issue years ago and just used something similar to the method
described here:
https://kodi.wiki/view/Creating_and_using_edid.bin_via_xorg.conf

What you basically do is tell your card to ignore the EDID that it reads
from the wire and instead use one that you have dumped in a file - then the
input on your receiver is irrelevant and it should always set to the
correct mode. You'll just need to remember to change it if you ever need to
change the receiver/TV.

Deyan
<https://kodi.wiki/view/Creating_and_using_edid.bin_via_xorg.conf>
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