Hi, As others have pointed out, the problem is unlikely to be Coot itself, but your (updated) OS and its graphics cards instead. I had similar issue with other programs (e.g. EMAN2) and was able to solve it by following what is described in the first reply on the following thread: https://askubuntu.com/questions/745135/how-to-enable-indirect-glx-contexts-iglx-in-ubuntu-14-04-lts-with-nvidia-gfx
The specific config file might be different depending on your distro and X display manager, but the solution boils down to adding the +iglx flag to xserver-command. Alternatively, using x2go as suggested by Kay Diederichs is a good workaround. Hope this helps, -- Ricardo Diogo Righetto 2018-05-28 10:10 GMT+02:00 Pedro Matias <mat...@itqb.unl.pt>: > Hi all, > > Another problem might be that recent X server versions do not support > something called "indirect rendering" which makes possible displaying > OpenGL applications on a remote desktop not directly connected to the > OpenGL server. I run remote sessions using tigervnc on a Linux server > and UltraVNC viewer on the W10 client, and as of Fedora 23 this began to > happen. I then installed VirtualGL and use vglrun to start the OpenGL > application (e.g., coot and PyMOL). This also required modifying the > ccp4 and PHENIX scripts for launching coot. > > Pedro > > > Às 07:19 de 28/05/2018, Kay Diederichs escreveu: > > We also see the ssh problem (but I didn't investigate thoroughly). > > > > We then use x2goclient; this runs an X server on the remote machine and > connects a desktop session to it. That desktop runs coot (and anything > else) nicely. Easy to set up, and for some purposes better than NoMachine. > > > > HTH, > > Kay > > > > On Sun, 27 May 2018 13:35:53 -0400, David Schuller <schul...@cornell.edu> > wrote: > >> ... > >> We see it on some workstations > >> with nVidia cards, but not others, because we are running different > >> versions of the nVidia driver (legacy version for some older cards). > >> This is the proprietary driver from nVidia (as loaded from el repo for > >> sl6 and sl7 linux) > >> > >> The error messages show up with the "glxinfo" command. > >> > >> I do not know if a fix is on the way yet. You could try rolling back > >> your nVidia driver. > > ... > > > > -- > > Industry and Medicine Applied Crystallography > Macromolecular Crystallography Unit > ___________________________________ > Phones : (351-21) 446-9100 Ext. 1669 > (351-21) 446-9669 (direct) > Fax : (351-21) 441-1277 or 443-3644 > > email : mat...@itqb.unl.pt > > http://www.itqb.unl.pt/research/biological-chemistry/ > industry-and-medicine-applied-crystallography > http://www.itqb.unl.pt/labs/macromolecular-crystallography-unit > > Mailing address : > Instituto de Tecnologia Quimica e Biologica António Xavier > Universidade Nova de Lisboa > Av. da República > 2780-157 Oeiras > PORTUGAL > > ITQB NOVA, a great choice for your PhD > https://youtu.be/de6j-aaTWNQ > > Master Programme in Biochemistry for Health > https://youtu.be/UKstDCFjYI8 >
