[mythtv-users] Display lost on HDMI TV power cycle

[jacek burghardt]

What about keeping display power managment off
https://wiki.archlinux.org/index.php/Display_Power_Management_Signaling


On Mon, Jul 14, 2014 at 9:17 AM, NickS <nicks272 at yahoo.co.uk> wrote:

> > Actually, after re-reading the post, the correct answer for
> > your particular problem may be to add
> >
> > Option "UseHotplugEvents" "False"
> >
> > to your xorg.conf (or equivalent) file.
>
> Thanks Gary, I'd not come across that before. I tried it (and lots of
> other fiddling with xorg.conf) over the weekend and unfortunately it
> doesn't seem to work. Here's my current /etc/X11/xorg.conf file:
>
>     Section "Monitor"
>         Identifier    "HDMI-0"
>         VendorName    "LG"
>         ModelName    "42LM620T"
>         Option        "UseHotplugEvents"    "false"
>         Option        "Primary"        "true"
>         Option        "DPMS"        "false"
>     EndSection
>
>     Section "Screen"
>         Identifier "Screen0"
>         Monitor    "HDMI-0"
>     EndSection
>
> which appears to be detected:
>
>     ~$ grep "xorg.conf" /var/log/Xorg.0.log
>     [  1114.119] (==) Using config file: "/etc/X11/xorg.conf"
>
> but isn't having the desired effect.
>
> I suspect that the "UseHotplugEvents" option is NVidia specific, as I
> can't find any mention of it in the manpages for  xorg.conf  or  radeon .
> It looks like EDID options (like "UseEDID") are nvidia specific too, so
> xorg.conf with ATI is looking like a dead-end :(
>
> I'll keep searching and trying things (including your EDID kernel
> suggestion), but in the end I may have no option but to revert back to a
> legacy kernel and proprietary ATI driver that supports my Radeon HD 4250.
> In the meantime any other solutions would be most welcome. Thanks,
>
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