Loss of a wayland socket by a systemd user session

Loss of a wayland socket by a systemd user session

[Tomas Novotny]

Hi all,

I'm using weston and its 'weston-start' script shipped with oe-core (morty).
It works perfectly until root is logged in. The problematic path is:

1) 'weston-start' is started during boot. XDG_RUNTIME_DIR for root doesn't
exist so it is created and 'wayland-0' socket is created in that directory.
So far so good.

2) When root is logged in, systemd user session is started via 'systemd
--user'. This replaces original XDG_RUNTIME_DIR (new tmpfs is mounted over
it) and the 'wayland-0' socket is lost. Logout doesn't help, the original
XDG_RUNTIME_DIR is deleted. You can imagine that weston doesn't work properly
without that socket.

Is there any proper way to fix it?

Thanks,

Tomas

Re: Loss of a wayland socket by a systemd user session

[Daniel Díaz]

Hello!


On 11/18/2016 12:12 PM, Tomas Novotny wrote:
> I'm using weston and its 'weston-start' script shipped with oe-core (morty).
> It works perfectly until root is logged in. The problematic path is:
[...]

We've seen that [1]. If you have PAM, you can modify weston-start to
pass `-u root' to weston-launch [2].

You can also try this systemd service unit and launch Weston directly:
  https://github.com/mrchapp/meta-96boards/commit/ac3e11e

Greetings!

Daniel Díaz
daniel.diaz@linaro.org


[1] https://bugs.linaro.org/show_bug.cgi?id=2576
[2] https://github.com/mrchapp/meta-96boards/commit/ee71b7e

Re: Loss of a wayland socket by a systemd user session

[Tomas Novotny]

Hi Daniel,

On Fri, 18 Nov 2016 20:47:05 -0600
Daniel Díaz <daniel.diaz@linaro.org> wrote:

> Hello!
> 
> 
> On 11/18/2016 12:12 PM, Tomas Novotny wrote:
> > I'm using weston and its 'weston-start' script shipped with oe-core (morty).
> > It works perfectly until root is logged in. The problematic path is:
> [...]
> 
> We've seen that [1]. If you have PAM, you can modify weston-start to
> pass `-u root' to weston-launch [2].
> 
> You can also try this systemd service unit and launch Weston directly:
>   https://github.com/mrchapp/meta-96boards/commit/ac3e11e

thanks a lot, this patch works for me. It is nice that it also removes the
weston-launch. Were you thinking about upstreaming your patch?

By the way, the first fix [2] didn't work for me (although I checked it
briefly).

Thanks again,

Tomas

> Greetings!
> 
> Daniel Díaz
> daniel.diaz@linaro.org
> 
> 
> [1] https://bugs.linaro.org/show_bug.cgi?id=2576
> [2] https://github.com/mrchapp/meta-96boards/commit/ee71b7e
>