DPMS in one of two monitors

[Alex Deucher]

On Wed, Jun 20, 2018 at 9:11 AM, Diego Cardinali
<cardinalidiego at gmail.com> wrote:
> Hello!
> I am using Lubuntu 18.04 64bit with a radeon hd4650 video card and I'm using
> a monitor on vga port and a tv on hdmi.
> I am trying to enable dpms settings only for the vga monitor while disabling
> it for the tv-hdmi
> I did some searches around and came up with this solution: create a
> 10-monitor.conf file to put in /usr/share/X11/xorg.conf.d/ with the
> following text
>
>
> Section "Monitor"
>
> Identifier   "HDMI-0"
>
> Option "RightOf" "VGA-0"
>
> Option          "DPMS" "true"
>
> EndSection
>
>
>
> Section "Monitor"
>
> Identifier   "VGA-0"
>
> Option "LeftOf" "HDMI-0"
>
> Option          "DPMS" "false"
>
> EndSection
>
>
>
>
> Section "ServerFlags"
>
> Option "StandbyTime" "1"
>
> EndSection
>
>
> I used the same identifiers xrandr uses
> I have set a low standbytime so it's easier to check if it works or not.
> At the moment it doesn't work at all, not even in the tv-hdmi output, but
> the ServerFlags section does affect the system (as far as I know checking
> with xset -q)
> You can find my Xorg.0.log at https://pastebin.com/5KB16DJ0 , where I
> noticed
>
> [    27.014] (==) RADEON(0): DPMS enabled
>
> any suggestions?
> I tried with xset but it affects both the monitors
>
> Thanks in advance!


There is no way in the X server to only enable DPMS on one monitor.
It's either on or off globally.

Alex

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