Re: [gnome-flashback] gnome-sessions on Ubuntu 15.10+

[Alberts Muktupāvels <alberts muktupavels gmail com>]

On Mon, Dec 14, 2015 at 8:25 PM, Eugene San <eugenesan gmail com> wrote:

X2GO is a remote X solution. For purpose of this thread it should be seen as a regular X server.

I've also validated that VNC server behaves exactly the same.

I am attaching X startup script and session log with hope someone can help.

Your XDG line should be:

export XDG_CURRENT_DESKTOP="GNOME-Flashback:Unity"

 

or

XDG_CURRENT_DESKTOP="GNOME-Flashback:Unity"

export XDG_CURRENT_DESKTOP

.

Can somebody tell me if login managers doing anything special regarding session setup? What can be the difference between starting session in bare X and via login manager?

One thing they do is set XDG_CURRENT_DESKTOP environment variable. Your startup script does not set it correctly as I see this line in log:

gnome-session-binary[2147]: DEBUG(+): GsmManager: Phase PANEL
gnome-session-binary[2147]: DEBUG(+): app /org/gnome/SessionManager/App3 is not for the current desktop
gnome-session-binary[2147]: DEBUG(+): GsmManager:    ID: /org/gnome/SessionManager/App3    app-id:gnome-panel.desktop    is-disabled:1    is-conditionally-disabled:0    is-delayed:0

gnome-panel is disabled...

Regards.

On Mon, Dec 14, 2015 at 11:02 AM, Alberts Muktupāvels <alberts muktupavels gmail com> wrote:

Hi,

On Mon, Dec 14, 2015 at 5:09 AM, Eugene San <eugenesan gmail com> wrote:

Hi all.

--- This is a re-post of help-request posted on x2go-dev (http://lists.x2go.org/pipermail/x2go-dev/2015-December/010772.html). I think this maillist is relevant too. ---

I am trying to fix gnome sessions (gnome flashback) on Ubuntu 15.10+.

What exactly you are trying to fix? I don't know anything about x2go... Maybe others can help you.

 I started with fixing session name (flashback -> flashback-metacity) and disabling acceleration check (--disable-acceleration-check), but the sessions are still broken, they start as a black screen and crashes after few minutes.

Correct session name is 'gnome-flashback-metacity'. Also I would suggest to add '--debug' to get log that might be useful.

Logs are inconclusive.
I guess services are failing to start and the problem is related to recent systemd-user-init and upstart mixture for sessions start-up.

Can anyone educate me how exactly the sessions are starting in recent releases and where the problem might be?

Is XDG_CURRENT_DESKTOP set to 'GNOME-Flashback:GNOME'? In ubuntu case 'GNOME-Flashback:Unity'. Without this gnome-panel and gnome-flashback (as minimum) will not be started. In this case gnome-session will tell that applications are disabled if started with --debug:

app-id:gnome-panel.desktop is-disabled:1
...

On Sun, Dec 13, 2015 at 8:11 PM, Eugene San <eugenesan gmail com> wrote:

Hi all.
I am trying to fix gnome sessions (gnome flashback) on Ubuntu 15.10+.

I started with fixing session name (flashback -> flashback-metacity) and disabling acceleration check (--disable-acceleration-check), but the sessions are still broken, they start as a black screen and crashes after few minutes.

Logs are inconclusive.
I guess services are failing to start and the problem is related to recent systemd-user-init and upstart mixture for sessions start-up.

Can anyone educate me how exactly the sessions are starting in recent releases and where the problem might be?

Thanks.

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--

Alberts Muktupāvels

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Alberts Muktupāvels