I have a combination that is working now, and this is my primary work computer. I'm a contract engineer, and when this thing is down I'm not earning my pay. So I really, really don't want to mess with it -- I'm sorry about that, but I hope you understand.
However, as I get time, I'd be willing to install things on a USB stick and see if I can't replicate the problem there. Based on my own experience (I do embedded software work, but I'm just a user when it comes to Linux) I suspect that the actual problem is not the new driver itself, but that something in the installation process diddled with some global OpenGL settings that then broke either the Radeon driver, or OpenGL itself (I don't know if that makes sense, because I'm a USER. Call me if you're designing washing machine motor drive that buzzes on the spin cycle and I'll help you out, though). So the process that I'd suggest, if you're willing to help me out with the details, would be to install an entire pre-November 4 version of Xubuntu onto a USB stick, verify that OpenGL works, then do the November 4 upgrade, and test OpenGL again. I do have IT help on hand, whose familiar with Linux -- I just have to come up with appropriate bribes. So if it's too hard to describe to a knowledgeable user, describe it for someone who installs Arch onto a spare machine so that he can use that as a tool to talk to an obsolete Sun box that he's installing Gentoo upon -- he'll have the background to rapidly get things I don't. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-graphics-drivers-340 in Ubuntu. https://bugs.launchpad.net/bugs/1639371 Title: OpenGL Graphics broken on November 4th upgrades Status in nvidia-graphics-drivers-340 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] --- ApportVersion: 2.14.1-0ubuntu3.21 Architecture: amd64 CurrentDesktop: XFCE DistroRelease: Ubuntu 14.04 InstallationDate: Installed on 2015-06-04 (524 days ago) InstallationMedia: Xubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1) Package: xorg-server PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 4.4.0-45.66~14.04.1-generic 4.4.21 Tags: trusty third-party-packages Uname: Linux 4.4.0-45-generic x86_64 UnreportableReason: This is not an official Ubuntu package. Please remove any third party package and try again. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm bluetooth cdrom dialout dip lpadmin plugdev sambashare sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-340/+bug/1639371/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp