Found inspiration for a work-around on this page:
http://askubuntu.com/questions/475972/error-couldnt-find-rgb-glx-visual-
or-fbconfig-ubuntu-12-04/476916#476916
This is NOT TRIVIAL. I started by trying to follow that page's
recommendations, replacing "xserver-xorg" with "xserver-common", and
BORKED X entirely, to the point where I couldn't use the keyboard or see
things on the screen. Fortunately I was able to ssh into the system.
I did a lot of mucking about, but what will probably work is:
sudo apt-get remove --purge xserver-common
sudo apt-get install xorg
I do NOT recommend this if you're shy around computers, or if you don't
have a reliable way to ssh into your sick box. I'm sure there's a very-
much-better way of solving the problem, but I'm not good enough to know
it.
** Also affects: xorg-server (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1639371
Title:
OpenGL Graphics broken on November 4th upgrades
Status in freecad package in Ubuntu:
New
Status in nvidia-graphics-drivers-331 package in Ubuntu:
New
Status in scilab package in Ubuntu:
New
Status in xorg-server package in Ubuntu:
New
Bug description:
First: I don't know if I'm reporting this against the correct package.
The bug report system needs a "unknown package" reporting system, for
people who aren't freaking IT experts yet who are still smart enough
to notice a real live problem.
I have a Radeon card, but things most definitely broke TODAY
immediately after I did a software upgrade.
I use Scilab, which uses OpenGL heavily. After today's upgrade, it
was unable to display graphics, reporting
"Caused by: javax.media.opengl.GLException: Profile GL_DEFAULT is not
available on X11GraphicsDevice[type .x11, connection :0.0"
The symptom in Scilab was that the graphics window opened, but no
graph was drawn upon it. glxinfo is unable to find an RGB visual; I
assume that means that GL is broken -- glxinfo certainly works just
fine on another machine upon which Scilab also works just fine.
ubuntu-drivers devices returns
== /sys/devices/pci0000:00/0000:00:01.0 ==
modalias : pci:v00001002d0000130Fsv00001043sd000085CBbc03sc00i00
vendor : Advanced Micro Devices, Inc. [AMD/ATI]
driver : fglrx-updates - distro non-free
driver : xserver-xorg-video-ati - distro free builtin recommended
driver : fglrx - distro non-free
As near as I can tell, the xserver-xorg-video-ati is installed. I
have not attempted to change over to fglrx.
glxinfo returns:
name of display: :0.0
Error: couldn't find RGB GLX visual or fbconfig
Error: couldn't find RGB GLX visual or fbconfig
lspci | grep VGA returns
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Kaveri [Radeon R7 Graphics]
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