Попробуйте отключить 3D-ускорение примерно в: флаги: эта же проблема в Windows и Ubuntu 10.10 исправлена с ней.
% apt-cache search nvidia | grep -P '^nvidia-[0-9]+\s'
nvidia-304 - NVIDIA legacy binary driver - version 304.125
nvidia-310 - Transitional package for nvidia-310
nvidia-319 - Transitional package for nvidia-319
nvidia-331 - Transitional package for nvidia-331
nvidia-340 - NVIDIA binary driver - version 340.76
nvidia-346 - NVIDIA binary driver - version 346.59
и установить с помощью, например,
sudo apt-get install nvidia-346
Sat Sep 5 11:57:22 2015
+------------------------------------------------------+
| NVIDIA-SMI 340.76 Driver Version: 340.76 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
| 0 GeForce 9800 GT... Off | 0000:01:00.0 N/A | N/A |
| 65% 52C P0 N/A / N/A | 271MiB / 1023MiB | N/A Default |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Compute processes: GPU Memory |
| GPU PID Process name Usage |
|=============================================================================|
| 0 Not Supported |
+-----------------------------------------------------------------------------+
[ f7] nvidia-settings -q NvidiaDriverVersion Attribute 'NvidiaDriverVersion' (sturm:1.0): 340.76
Attribute 'NvidiaDriverVersion' (sturm:1[gpu:0]): 340.76
cat /proc/driver/nvidia/version NVRM version: NVIDIA UNIX x86_64 Kernel Module 340.76 Thu Jan 22 12:11:08 PST 2015
GCC version: gcc version 4.9.2 (Ubuntu 4.9.2-10ubuntu13)