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

[Alberts Muktupāvels <alberts muktupavels gmail com>]

On Mon, Jan 18, 2016 at 7:04 PM, Eugene San <eugenesan gmail com> wrote:

Actually x2go starts DE as described in .desktop file, but using hardcoded values.

I believe once the 653327 is fixed we could switch to fetching DE parameters from .desktop file.

That bug does not prevent to read DesktopNames from .desktop file. For better compatibility x2go could read DesktopNames and use it to set XDG_CURRENT_DESKTOP. In case DesktopNames are missing then fallback to

hardcoded values.

Regarding gmenu issue we discussed earlier.

It appears there are 2 versions of gmenu in Ubuntu repos (gnome-menus and gnome-menus2).
gnome-menus seems to be ok, gnome-panel::menu using it without any issues.
gnome-menus2 is indeed broken due to multi-value XDG_CURRENT_DESKTOP.

Seems like gnome-menu2 is a fork of gnome-menus (v3.0.1) and was revived to support python2/gtk2 based packages.

Well then someone needs to backport fix (I have no time to do it...). Anyway this means that this is not GNOME-Flashback specific issue, same problem will be in GNOME Classic where XDG_CURRENT_DESKTOP is GNOME-Classic:GNOME.

Maybe it is time to port applications to python3/gtk3?

On Mon, Jan 18, 2016 at 11:05 AM, Alberts Muktupāvels <alberts muktupavels gmail com> wrote:

On Mon, Dec 14, 2015 at 11:07 PM, Alkis Georgopoulos <alkisg gmail com> wrote:

Next I ran:
nano /usr/lib/gnome-flashback/gnome-flashback-metacity

and I inserted those:
export XDG_CURRENT_DESKTOP=GNOME-Flashback:Unity
export DESKTOP_SESSION=gnome-flashback-metacity

Now x2go runs fine when I tell it to run a custom session:
/usr/lib/gnome-flashback/gnome-flashback-metacity

I wonder though, why do display managers or x2go need to define those environment variables, when they explicitly run e.g. gnome-flashback-metacity?

That script is there to workaround problem that has not been fixed till today:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=653327

In ideal world this file:

/usr/share/xsession/gnome-flashback-metacity.desktop

should have

Exec=gnome-session --session=gnome-flashback-metacity --disable-acceleration-check

not
Exec=/usr/lib/gnome-flashback/gnome-flashback-metacity

DM reads that *.desktop file and sets XDG_CURRENT_DESKTOP env from DesktopNames. Don't know how x2go works, but it might need to do similar thing.

--

Alberts Muktupāvels

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Alberts Muktupāvels