X2Go Bug report logs - #1197
Multihead fullscreen not working with TCE client in displaymanager mode

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Package: x2gothinclient; Maintainer for x2gothinclient is X2Go Developers <x2go-dev@lists.x2go.org>; Source for x2gothinclient is src:x2gothinclient.

Reported by: Walid MOGHRABI <w.moghrabi@servicemagic.eu>

Date: Mon, 24 Jul 2017 13:20:01 UTC

Severity: normal

Found in version 4.1.0.0-2017.03.11

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Subject: Bug#1197: Multihead fullscreen not working with TCE client in displaymanager mode
Reply-To: Walid MOGHRABI <w.moghrabi@servicemagic.eu>, 1197@bugs.x2go.org
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Date: Wed, 26 Jul 2017 13:36:39 +0200 (CEST)
From: Walid MOGHRABI <w.moghrabi@servicemagic.eu>
To: Ulrich Sibiller <uli42@gmx.de>
Cc: Stefan Baur <X2Go-ML-1@baur-itcs.de>, 1197@bugs.x2go.org
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You're right, here are what you asked, all taken from the TCE directly, not from within the X2Go session :

=========================================================================
root@TCE-CLIENT-DELL-VOSTRO430-4D1ZR4J:~# xdpyinfo -display :0
name of display:    :0
version number:    11.0
vendor string:    The X.Org Foundation
vendor release number:    11804000
X.Org version: 1.18.4
maximum request size:  16777212 bytes
motion buffer size:  256
bitmap unit, bit order, padding:    32, LSBFirst, 32
image byte order:    LSBFirst
number of supported pixmap formats:    7
supported pixmap formats:
    depth 1, bits_per_pixel 1, scanline_pad 32
    depth 4, bits_per_pixel 8, scanline_pad 32
    depth 8, bits_per_pixel 8, scanline_pad 32
    depth 15, bits_per_pixel 16, scanline_pad 32
    depth 16, bits_per_pixel 16, scanline_pad 32
    depth 24, bits_per_pixel 32, scanline_pad 32
    depth 32, bits_per_pixel 32, scanline_pad 32
keycode range:    minimum 8, maximum 255
focus:  window 0x600005, revert to Parent
number of extensions:    29
    BIG-REQUESTS
    Composite
    DAMAGE
    DOUBLE-BUFFER
    DPMS
    DRI2
    GLX
    Generic Event Extension
    MIT-SCREEN-SAVER
    MIT-SHM
    Present
    RANDR
    RECORD
    RENDER
    SECURITY
    SGI-GLX
    SHAPE
    SYNC
    X-Resource
    XC-MISC
    XFIXES
    XFree86-DGA
    XFree86-VidModeExtension
    XINERAMA
    XInputExtension
    XKEYBOARD
    XTEST
    XVideo
    XVideo-MotionCompensation
default screen number:    0
number of screens:    1

screen #0:
  dimensions:    3840x1080 pixels (1016x285 millimeters)
  resolution:    96x96 dots per inch
  depths (7):    24, 1, 4, 8, 15, 16, 32
...
...
=========================================================================



=========================================================================
root@TCE-CLIENT-DELL-VOSTRO430-4D1ZR4J:~# xrandr --display :0
Screen 0: minimum 320 x 200, current 3840 x 1080, maximum 8192 x 8192
DVI-I-1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 510mm x 287mm
   1920x1080     60.00*+
   1280x1024     75.02    60.02  
   1152x864      75.00  
   1024x768      75.08    60.00  
   800x600       75.00    60.32  
   640x480       75.00    60.00  
   720x400       70.08  
HDMI-1 disconnected (normal left inverted right x axis y axis)
VGA-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 510mm x 287mm
   1920x1080     60.00*+
   1280x1024     75.02    60.02  
   1152x864      75.00  
   1024x768      75.08    60.00  
   800x600       75.00    60.32  
   640x480       75.00    60.00  
   720x400       70.08  
=========================================================================



Regards,
Walid Moghrabi

TRAVAUX.COM
BAT I - PARC CEZANNE 2 290 AVENUE GALILEE - CS 80403
13591 AIX EN PROVENCE CEDEX 3

----- Mail original ----- 

De: "Ulrich Sibiller" <uli42@gmx.de> 
À: "Walid MOGHRABI" <w.moghrabi@servicemagic.eu> 
Cc: "Stefan Baur" <X2Go-ML-1@baur-itcs.de>, 1197@bugs.x2go.org 
Envoyé: Mercredi 26 Juillet 2017 12:10:42 
Objet: Re: Bug#1197: Multihead fullscreen not working with TCE client in displaymanager mode 

On Wed, Jul 26, 2017 at 12:05 PM, Walid MOGHRABI 
<w.moghrabi@servicemagic.eu> wrote: 
> That's what I did and it simply didn't work for a Ubuntu based image. 
> 
> Most configuration switches for live-build script are not supported under Ubuntu and well, I don't remember every bits of what were working or not because I tried monthes ago but it was to tricky and except for Debian, it was simply unusable as is. 
> As for the git repos, I tried many combinations and nothing worked as expected so I basicaly decided to do this by hand and take inspiration from the howto on what to install/tweak. 
> 
> I ended with something that was not that complicated to do, scriptable (mostly) and working (except for this dual head stuff) so I stopped going the Live Build way, at least, just the time to sort out things and get back with some contributions on that part. 


Let's not get distracted. 

Back to your setup. You posted xpdyinfo output some days ago that 
clearly showed that the real X server on your TCE setup does not offer 
xinerama. And you posted xrandr output that showed multiple screens 
for the same X server. Just to be sure nothing got confused: please 
run both commands again on the TCE's X server. If it stays like this 
please check the X server's logfile for any randr or xinerama 
messages. 

Uli
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