How to run multiple "standalone" application

POGMAN · 2020-04-16 12:07:01

Hi,
I am trying to run both Kodi and Retroarch in "standalone" mode using systemd services.

I used kodi-standalone-service (AUR) as base for both services.
Here are said services files:

kodi.service

[Unit]
Description=Kodi standalone (X11)
After=remote-fs.target systemd-user-sessions.service network-online.target nss-lookup.target sound.target bluetooth.target polkit.service upower.service mysqld.service
Wants=network-online.target polkit.service upower.service
Conflicts=getty@tty1.service

[Service]
User=kodi
Group=kodi
PAMName=login
TTYPath=/dev/tty1
Environment=WINDOWING=x11
ExecStart=/usr/bin/xinit /usr/bin/kodi-standalone -- :0 -nolisten tcp vt1
Restart=on-abort
StandardInput=tty
StandardOutput=journal

[Install]
WantedBy=graphical.target

retroarch.service

[Unit]
Description=Systemd service and user to run Retroarch in stand-alone mode
After=remote-fs.target systemd-user-sessions.service network-online.target nss-lookup.target sound.target bluetooth.target polkit.service upower.service mysqld.service
Wants=network-online.target polkit.service upower.service
Conflicts=getty@tty2.service

[Service]
User=brix
Group=users
PAMName=login
TTYPath=/dev/tty2
Environment=WINDOWING=x11
ExecStart=/usr/bin/xinit /usr/bin/retroarch -- :0 -nolisten tcp vt2
Restart=always
Restart=on-abort
StandardInput=tty
StandardOutput=journal

[Install] 
WantedBy=graphical.target

Basically I changed tty1/vt1 to tty2/vt2 so retroarch would run on tty2 and I would be able toggle from one to another with Ctrl+Alt+F1/F2

But it doesn't work...
Kodi starts just fine but when I try to start retroarch I end up with an error "Server is already active for display 0"

So i suspect I don't have the right approach here, does anyone have any idea how to achieve this or what's is wrong with my services files?

Thanks!

PS: I also tried retroarch-standalone-service (AUR) with the same result.

seth · 2020-04-16 12:16:16

ExecStart=/usr/bin/xinit /usr/bin/kodi-standalone -- :0 -nolisten tcp vt1

ExecStart=/usr/bin/xinit /usr/bin/retroarch -- :0 -nolisten tcp vt2

:0 is the X11 display…

progandy · 2020-04-16 12:18:57

The error tells you that an xorg server is already running for the display called "0", If you want to run a second x server, you'll have to choose a different display.

Last edited by progandy (2020-04-16 12:19:18)

POGMAN · 2020-04-16 13:24:46

seth wrote:

ExecStart=/usr/bin/xinit /usr/bin/kodi-standalone -- :0 -nolisten tcp vt1

ExecStart=/usr/bin/xinit /usr/bin/retroarch -- :0 -nolisten tcp vt2

:0 is the X11 display…

So if I replace :0 by :1 in one of the unit would do the trick?

seth · 2020-04-16 13:51:40

Feel encouraged to try.

Trilby · 2020-04-16 14:34:56

Or replace one of them by :3 or :7, it really doesn't matter as long as they are different. I've always found it frustrating that vt numbers start from 1 yet most people number Xorg displays starting from 0. Just because xorg allows :0 as a display number doesn't mean you have to use it.

My system is set up to make the display and vt number the same: :1 on vt1, :2 on vt2, etc. If I ever need an xorg display not running on a local tty, I'd just use a display number larger than the number of ttys (or maybe I could use :0 for that).

Arch Linux

#1 2020-04-16 12:07:01

How to run multiple "standalone" application

#2 2020-04-16 12:16:16

Re: How to run multiple "standalone" application

#3 2020-04-16 12:18:57

Re: How to run multiple "standalone" application

#4 2020-04-16 13:24:46

Re: How to run multiple "standalone" application

#5 2020-04-16 13:51:40

Re: How to run multiple "standalone" application

#6 2020-04-16 14:34:56

Re: How to run multiple "standalone" application

Board footer