Dear Marian,
for some while, now, in xorg.conf, the entry
Option "Composite" "Disable"
does not work. Please, use instead the entry
Option "COMPOSITE" "Disable"
Cheers,
Dirk.
On 03.08.20 14:54, Marian Oliva wrote:
INSTALING STEREO COOT 3D VISION 2 FROM NVIDIA UNDER UBUNTU
HARDWARE
CARD: NVIDIA QUADRO 4000. Bought second hand in AMAZON. Other Quadro
NVIDIA cards would get the job done as long as they have the 3-pin DIN
stereo connector. But this is the cheapest alternative I foundI had to
buy the PCI Plate got the 3-pin DIN port separately, it was lost from
the second hand card.
GLASSES: 3D NVIDIA 2 Also bought Second hand in AMAZON
MONITOR: Asus VG248 Nvidia 3D Ready In this case from Ebay
Connecting the hardware was trivial. But I recommend to first connect
the VG240 using the Dual Link DVI wire and do the setup with this,
then you can complicate your life with the second screen.
SOFTWARE IMPORTANT ISSUES.
The installation is not too difficult if you know a couple of tricks,
but I didn´t:
- You have to correctly install the NVIDIA driver. I used 390.138
Legacy Linux driver. Not too difficult. Download from here
https://www.nvidia.com/en-us/drivers/unix/
Execute as root.
You will get this message
An incomplete installation of libglvnd was found. All of the essential
libglvnd libraries are present, but on or more optional components are
missing.
Do you want to install a full copy of libglvnd? This will overwrite
any existing libglvnd libraries.
Answer DON´T INSTALL. Or fully remove libglvnd and reinstall them.
See this Web for other tips.
https://www.berkhanberkdemir.com/2019/07/24/how-to-not-install-nvidia-driver-in-linux.html
3D IS INCOMPATIBLE WITH COMPOSITE EXTENSIONS OF THE DESKTOP manager.
I found a LOT of info in this page
https://strucbio.biologie.uni-konstanz.de/ccp4wiki/index.php/Stereo
This should be enough to get stereo working. However, note that there
is a major issue on linux with window compositing causing stereo
images to display improperly. This is a problem with the window
display manager, and is not inherent to Xorg or NVidia. If you try to
turn on stereo in Coot in a display manager that makes use of the Xorg
compositing extension (e.g., Gnome3, or Unity in Ubuntu) then what you
will see when you activate hardware stereo is a slight rotation of the
view, but stereo remains disabled. In order to get around this
problem, you must use a display manager that does not make use of
compositing as part of its eye candy. This author has found the MATE
desktop to work quite well for this purpose (and may in fact be one of
the few that still does not use software compositing by default). Note
that you /do not/ need to disable the Compositing extension in the
Xorg configuration file to make this work -- this will allow you to
switch back to Gnome3, Unity, etc when you don't need stereo if you
prefer! Not disabling the window compositing extension globally allows
for a more flexible setup depending on your preferred workflow.
I tried to desactivate the COMPOSITE extension in xorg.conf as suggested.
Section "Extensions"
Option "Composite" "Disable"
EndSection
But all the Desktop Environments I had miserable failed to start.
Then I simply install MATE environment
https://www.omgubuntu.co.uk/2014/08/install-mate-desktop-ubuntu-14-04-lts
Select it and everything worked.
Best luck if you want to repeat my experience!
Marian Oliva
CSIC-Centro de Investigaciones Biológicas Margarita Salas
9, Ramiro de Maeztu
28040-Madrid (Spain)
phone: 0034 91 8373112 (x4380)
e-mail: mar...@cib.csic.es <mailto:mar...@cib.csic.es>
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El 1 ago 2020, a las 16:18, Oganesyan, Vaheh
<vaheh.oganes...@astrazeneca.com
<mailto:vaheh.oganes...@astrazeneca.com>> escribió:
Hi Marian,
Are there other numbers or letters in the monitor nameASUS VG248 that
you used successfully? I’m trying to do the same.
Thank you.
*From:*CCP4 bulletin board <CCP4BB@JISCMAIL.AC.UK
<mailto:CCP4BB@JISCMAIL.AC.UK>>*On Behalf Of*Marian Oliva
*Sent:*Thursday, July 30, 2020 8:46 AM
*To:*CCP4BB@JISCMAIL.AC.UK <mailto:CCP4BB@JISCMAIL.AC.UK>
*Subject:*[ccp4bb] Help With Setting up a Stereo view system
Dear colleagues.
I would like to check if some one can help me with the setup of my
hardware stereo system in Coot under Ubuntu 14
With the help of a friend I collect a bunch of second hand stuff.
1 NVIDIA 3D Video 2 system.
1 Monitor ASUS VG248 conectes through the display port
1 NVIDIA QUADRO 4000 video card.
After connecting everything and having a nightmare to install the
Legacy Drivers 390.138
And following this instructions
https://strucbio.biologie.uni-konstanz.de/ccp4wiki/index.php/Stereo
I run nvidia-xconfig --stereo=10
I connected the emitter both by USB and the DIN 3 pin conector
I connected the monitor through the Display Port
I reboot and , the emitter finally shows the green light
I can run nvidia-settings and I have the control panel
I see Stereo 3D Vision Stereo but only the left cube running.
But when I activate hardware stereo nothing works.
Does anybody have a clue of what to do?
Thanks in advance,
Marian
Marian Oliva
CSIC-Centro de Investigaciones Biológicas Margarita Salas
9, Ramiro de Maeztu
28040-Madrid (Spain)
phone: 0034 91 8373112 (x4380)
e-mail: mar...@cib.csic.es <mailto:mar...@cib.csic.es>
**NOTA DE CONFIDENCIALIDAD** Este correo electrónico, y en su caso
los ficheros adjuntos, pueden contener información protegida para el
uso exclusivo de su destinatario. Se prohíbe la distribución,
reproducción o cualquier otro tipo de transmisión por parte de otra
persona que no sea el destinatario. Si usted recibe por error este
correo, se ruega comunicarlo al remitente y borrar el mensaje recibido.
**CONFIDENTIALITY NOTICE** This email communication and any
attachments may contain confidential and privileged information for
the sole use of the designated recipient named above. Distribution,
reproduction or any other use of this transmission by any party other
than the intended recipient is prohibited. If you are not the
intended recipient please contact the sender and delete all copies.
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Gene Center Munich
Department of Biochemistry, AG Hopfner
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