[X2Go-User] Big screen problem

[Timo]

Dear x2go-user,

I bought a big 2560x1440 screen (big in my world). Remote system have a
1920x1200 screen. I tried to go full screen but noticed that I can't
change the remote desktop resolution to more than 1920x1200. So I can't
really go full screen. Is there something I haven't noticed? Where does
that limit come from? Is it really the size of the remote physical
screen or just coincidentally the same geometry?

Now, that I'm practically forced to work in a window, I'm really missing
a feature like there is in VirtualBox: You can grab mouse and keyboard
into the virtual desktop. I'm mostly missing ALT-TAB functionality
inside the remote desktop window. I wish that some day someone have the
time and interest to code such a feature.

Despite of those little annoyances X2Go have served me very nicely quite
a long time now - thanks.

--

Timo

[Timo]

Probably I should have told that my client system is

Ubuntu 12.04
GNOME3 Classic (no effects)
X2Go Client V. 4.0.1.1

and the remote is

Linux Mint 12
x2goagent 2:3.5.0.20-0~340~oneiric1
GNOME3 (Command: gnome-session --session=gnome-fallback)

Is it the remote system's GNOME3 that is the culprit here? I didn't have
resolution problems when my local screen was 1680x1050.

--

Timo

[Mike Gabriel]

Hi Timo,

Post by Timo
Probably I should have told that my client system is
Ubuntu 12.04
GNOME3 Classic (no effects)
X2Go Client V. 4.0.1.1
and the remote is
Linux Mint 12

Linux Mint with X2Go is not a good idea. See [1, 2].

Post by Timo
x2goagent 2:3.5.0.20-0~340~oneiric1
GNOME3 (Command: gnome-session --session=gnome-fallback)

GNOME3 xrandr is broken with X2Go. See [3].

Post by Timo
Is it the remote system's GNOME3 that is the culprit here? I didn't
have resolution problems when my local screen was 1680x1050.

[1] http://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=287
[2] https://bugs.launchpad.net/linuxmint/+bug/1213435
[3] http://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=42

Mike
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[Timo]

Post by Mike Gabriel

Post by Timo
Linux Mint 12

Linux Mint with X2Go is not a good idea. See [1, 2].

Thanks for the pointers. Good to know but seems not to be an issue in my
system. The 'xhost +' call seems to be absent. My system might be too old.

Post by Mike Gabriel

Post by Timo
GNOME3 (Command: gnome-session --session=gnome-fallback)

GNOME3 xrandr is broken with X2Go. See [3].

Yes, I have read about that but this is a little different, I think. I
have noticed that resizing does not work as expected but I have got
along by changing resolution in System Settings -> Displays. But now
there is not big enough geometry to go full screen.

I tried XFCE and yes, resizing works and I can go full screen alright.
Interestingly, what I'm used to do with GNOME doesn't work with XFCE. If
I change resolutions in Settings-> Display, the size of the X2Go window
changes but the size of the XFCE desktop does not.

In display settings XFCE shows 2560x1440. Why GNOME settings doesn't?

Post by Mike Gabriel
[1] http://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=287
[2] https://bugs.launchpad.net/linuxmint/+bug/1213435
[3] http://bugs.x2go.org/cgi-bin/bugreport.cgi?bug=42

--

Timo

[Christophe Lohr]

Post by Timo
Yes, I have read about that but this is a little different, I think. I
have noticed that resizing does not work as expected but I have got
along by changing resolution in System Settings -> Displays. But now
there is not big enough geometry to go full screen.

1) Use 'cvt' or 'gtf' to compute en new Modeline for X11

2) Feed 'xrandr' with it
xrandr --newmode <MODE-NAME> <MODELINE>
xrandr --addmode "default" <MODE-NAME>

3) Edit ~/.config/monitors.xml
Look at <output name="default"> then change <width> , <height> and
<rate> with values of your new Modeline

4) Then ask gnome-settings-daemon to apply changes:
dbus-send --session --print-reply --dest=org.gnome.SettingsDaemon
/org/gnome/SettingsDaemon/XRANDR
org.gnome.SettingsDaemon.XRANDR_2.ApplyConfiguration int64:0 int64:0

5) Scrip it, or forget gnome ;-)

Regards
Christophe

[Mike Gabriel]

Hi Christophe,

Post by Christophe Lohr

Post by Timo
Yes, I have read about that but this is a little different, I
think. I have noticed that resizing does not work as expected but I
have got along by changing resolution in System Settings ->
Displays. But now there is not big enough geometry to go full screen.

1) Use 'cvt' or 'gtf' to compute en new Modeline for X11
2) Feed 'xrandr' with it
xrandr --newmode <MODE-NAME> <MODELINE>
xrandr --addmode "default" <MODE-NAME>
3) Edit ~/.config/monitors.xml
Look at <output name="default"> then change <width> , <height>
and <rate> with values of your new Modeline
dbus-send --session --print-reply --dest=org.gnome.SettingsDaemon
/org/gnome/SettingsDaemon/XRANDR
org.gnome.SettingsDaemon.XRANDR_2.ApplyConfiguration int64:0 int64:0
5) Scrip it, or forget gnome ;-)

I forwarded the above message to issue #42 [1] in X2Go BTS.

Thanks for sharing!
Mike

[1] http://bugs.x2go.org/42
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Post by Christophe Lohr
1) Use 'cvt' or 'gtf' to compute en new Modeline for X11
...

Okay, that is extreme magic. I'll try it when I next time stumble into
the problem. Thanks.

Post by Christophe Lohr
5) Scrip it, or forget gnome ;-)

But if I had gave in too quickly with gnome, I wouldn't have learned
that nice piece of magic. The ideas of it probably proves to be useful
in other occasions too.

--

Timo

[Christophe Lohr]

Hi,
Attached is a shell script that does the job (more or less) (note:
install 'xmlstarlet' first)
I hope it can help until the gnome developers do better;-)

Regards
Christophe

Post by t***@gmail.com

Post by Christophe Lohr
1) Use 'cvt' or 'gtf' to compute en new Modeline for X11
...

Okay, that is extreme magic. I'll try it when I next time stumble into
the problem. Thanks.

Post by Christophe Lohr
5) Scrip it, or forget gnome ;-)

But if I had gave in too quickly with gnome, I wouldn't have learned
that nice piece of magic. The ideas of it probably proves to be useful
in other occasions too.
--
Timo
_______________________________________________
X2Go-User mailing list
https://lists.berlios.de/mailman/listinfo/x2go-user

[t***@gmail.com]

Attached is a shell script ...

Thanks a lot!

--

Timo

[Arnold Krille]

Post by Timo
Probably I should have told that my client system is
Ubuntu 12.04
GNOME3 Classic (no effects)
X2Go Client V. 4.0.1.1
and the remote is
Linux Mint 12
x2goagent 2:3.5.0.20-0~340~oneiric1
GNOME3 (Command: gnome-session --session=gnome-fallback)
Is it the remote system's GNOME3 that is the culprit here? I didn't
have resolution problems when my local screen was 1680x1050.

On my systems (debian squeeze) gnome doesn't like the screen-resize of
x2go and simply refuses. You can work around it by manually setting the
screen size through gnomes randr frontend but that doesn't help when
the new session is smaller and you can't reach the menu-bar.
Anyway, we are using KDE with X2Go and are very happy with that.

Have fun,

Arnold

[Timo]

Post by Arnold Krille
On my systems (debian squeeze) gnome doesn't like the screen-resize of
x2go and simply refuses. You can work around it by manually setting the
screen size through gnomes randr frontend...

If you mean System Settings -> Displays yes, I have used that when my
client screen was 1680x1050. Now when I have 2560x1440 client screen,
there is no such selection in the list. The list ends with 1920x1200.

--

Timo

[Timo]

... I can't change the remote desktop resolution to more than
1920x1200...

This turned out to be only half way true. I had started the session at
work (at the remote system) and now terminated it and tried again by
starting a new session from home. Now I could select a correct
resolution. So I suspect that when I start again a new session at work
and suspend it and try to restore it at home, I will face the problem again.

This is not a major issue but I find it a little bit puzzling that the
X2Go desktop size seems to be somehow dependent on physical screen size.

Resizing seems to work fine with XFCE but is there a possibility that if
I start a XFCE session in 1920x1200 system, it refuses to resize bigger
than that afterwards. I can't test that right now.

--

Timo