libgnome-desktop-3-7/check_gl_texture_size crashes on login

[David Ahlard]

After upgrade from Ubuntu 13.04 to 13.10, logging in takes a long time, showing a black screen (mouse pointer active). Unity then loads, but hardware OpenGL acceleration seems disabled. After logging in, /usr/lib/libgnome-desktop-3-7/check_gl_texture_size reports 8192.

Hardware: Acer C7, Intel HD Graphics
DistroRelease: Ubuntu 13.10
Package: libgnome-desktop-3-7 3.8.4-0ubuntu1
UpgradeStatus: Upgraded to saucy on 2013-10-22 (2 days ago)

AssertionMessage: check_gl_texture_size: ../../../../../src/mesa/main/context.c:1501: _mesa_make_current: Assertion `newCtx->Version > 0' failed.

-----
lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
-----
/usr/lib/nux/unity_support_test -p
OpenGL vendor string: VMware, Inc.
OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 3.3, 128 bits)
OpenGL version string: 2.1 Mesa 9.2.1

Not software rendered: no
Not blacklisted: yes
GLX fbconfig: yes
GLX texture from pixmap: yes
GL npot or rect textures: yes
GL vertex program: yes
GL fragment program: yes
GL vertex buffer object: yes
GL framebuffer object: yes
GL version is 1.4+: yes

Unity 3D supported: no

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.