It all started when I installed nvidia's own (download from website) driver. Uninstalling it and reverting back to nvidia-current didn't solve the problem, so I have been playing with this for a while. It seems glx support is missing, and my intel graphics is not responding. gnome loads only in fallback mode.
Here are some outputs:
glxinfo
name of display: :0.0
Error: couldn't find RGB GLX visual or fbconfig
glxgears
Error: couldn't get an RGB, Double-buffered visual
optirun glxgears
works fine
lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 540M] (rev ff)
Here's the content of log file when just after running glxinfo:
less /var/log/Xorg.0.log | grep gl
[ 112.156] (II) LoadModule: "glx"
[ 112.157] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[ 112.157] (II) Module glx: vendor="X.Org Foundation"
[ 112.157] (II) UnloadModule: "glx"
[ 112.157] (II) Unloading glx
[ 112.157] (EE) Failed to load module "glx" (module requirement mismatch, 0)
Some more info...
lsmod
Module Size Used by
bbswitch 13612 0
pci_stub 12623 1
vboxpci 23195 0
vboxnetadp 25671 0
vboxnetflt 23480 0
vboxdrv 320372 3 vboxpci,vboxnetadp,vboxnetflt
parport_pc 32689 0
ppdev 17074 0
bnep 18141 2
rfcomm 46620 12
binfmt_misc 17501 1
snd_hda_codec_hdmi 32049 1
snd_hda_codec_realtek 78147 1
joydev 17458 0
uvcvideo 76750 0
videobuf2_core 32852 1 uvcvideo
videodev 120310 2 uvcvideo,videobuf2_core
videobuf2_vmalloc 12861 1 uvcvideo
videobuf2_memops 13405 1 videobuf2_vmalloc
snd_hda_intel 33492 3
coretemp 13401 0
kvm_intel 132760 0
arc4 12530 2
snd_hda_codec 134213 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
kvm 414111 1 kvm_intel
iwlwifi 386837 0
i915 520799 2
snd_hwdep 17699 1 snd_hda_codec
snd_pcm 96668 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
psmouse 100389 0
drm_kms_helper 49113 1 i915
ghash_clmulni_intel 13221 0
snd_seq_midi 13325 0
snd_rawmidi 30513 1 snd_seq_midi
btusb 22475 0
drm 288436 3 i915,drm_kms_helper
serio_raw 13216 0
snd_seq_midi_event 14900 1 snd_seq_midi
snd_seq 61555 2 snd_seq_midi,snd_seq_midi_event
mac80211 535936 1 iwlwifi
bluetooth 209249 22 bnep,rfcomm,btusb
snd_timer 29426 2 snd_pcm,snd_seq
snd_seq_device 14498 3 snd_seq_midi,snd_rawmidi,snd_seq
snd 78921 16 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
cfg80211 206797 2 iwlwifi,mac80211
aesni_intel 51038 1
cryptd 20404 2 ghash_clmulni_intel,aesni_intel
aes_x86_64 17256 1 aesni_intel
dell_wmi 12682 0
sparse_keymap 13891 1 dell_wmi
dcdbas 14439 0
i2c_algo_bit 13414 1 i915
microcode 22804 0
lpc_ich 17062 0
soundcore 15048 1 snd
snd_page_alloc 18485 2 snd_hda_intel,snd_pcm
video 19391 1 i915
mac_hid 13206 0
wmi 19071 1 dell_wmi
mei 40691 0
lp 17760 0
parport 46346 3 parport_pc,ppdev,lp
ahci 25721 3
libahci 31192 1 ahci
atl1c 41102 0
how can I fix this? any ideas?
Here is another thing I've tried:
sudo apt-get purge nvidia*
sudo reboot
sudo apt-get install bumblebee bumblebee-nvidia
didn't make any difference.
The most relevant post I found on the web was this:
http://ubuntuforums.org/archive/index.php/t-1722306.html
Here it's explained that the problem is with the priority of shared libraries that are loaded for glxinfo. Here's what I get when I look up the libraries:
linux-vdso.so.1 => (0x00007fff6bf8b000)
libGL.so.1 => /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 (0x00007f22d6ccd000)
libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007f22d6993000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f22d65d3000)
libglapi.so.0 => /usr/lib/x86_64-linux-gnu/libglapi.so.0 (0x00007f22d63ad000)
libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007f22d619b000)
libXdamage.so.1 => /usr/lib/x86_64-linux-gnu/libXdamage.so.1 (0x00007f22d5f97000)
libXfixes.so.3 => /usr/lib/x86_64-linux-gnu/libXfixes.so.3 (0x00007f22d5d91000)
libX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007f22d5b8f000)
libxcb-glx.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-glx.so.0 (0x00007f22d5977000)
libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f22d5759000)
libXxf86vm.so.1 => /usr/lib/x86_64-linux-gnu/libXxf86vm.so.1 (0x00007f22d5553000)
libdrm.so.2 => /usr/lib/x86_64-linux-gnu/libdrm.so.2 (0x00007f22d5346000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f22d5129000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f22d4f25000)
/lib64/ld-linux-x86-64.so.2 (0x00007f22d6f54000)
libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007f22d4d20000)
libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f22d4b1a000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f22d4911000)
It seems "mesa" instead of nvidia-current is being used. However I didn't find any obvious link to /lib/nvidia-current in /etc/ld.so.conf (where the directories containing the shared libraries are listed). I don't know if there's anything missing or if this is normal.
thanks,
UPDATE: The problem was solved by updating to Ubuntu 13.04.
It seems bumblebee was to blame, but I'm not sure what was going wrong...
