i3 + Sandybridge freezes

Hi everybody,

i'm using Ubuntu 14.04 64bit with:

board: gigabyte ga-h67m-ud2h

CPU: Intel® Core™ i3-2120 CPU @ 3.30GHz × 4

Graphics: VESA: Intel®Sandybridge Desktop Graphics + Intel(R) Graphics Installer 1.0.5 for Linux*

You'll find some more details at the end of the post.

Starting my system without the parameter nomodeset gives me a perfect screen resolution ( 1920x1080 ) , but only for a few seconds.

After this very short time the system freezes and i can't do anything.

Starting the system with nomodeset runs without problems, but at a very low resolution of 640x480.

Using the little trick:

first starting without nomodeset -> freeze -> reboot

gives a resolution of 1024x768 without any further problems.

Of course I want to have a perfect resolution without a freeze, but i have no idea what to do to fix the problem.

Any suggestions would be nice.

Thx a lot

zifnab

uname -a
Linux XXX 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

lspci -nnk | grep -i VGA -A2
00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0102] (rev 09)
    Subsystem: Gigabyte Technology Co., Ltd Device [1458:d000]
00:16.0 Communication controller [0780]: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 [8086:1c3a] (rev 04)

glxinfo | grep 'OpenGL version string'
OpenGL version string: 2.1 Mesa 10.1.0

xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 1024 x 768, maximum 1024 x 768
default connected primary 1024x768+0+0 0mm x 0mm
   1024x768       61.0*
   800x600        61.0 
   640x480        60.0  

lscpu | grep op-mode
CPU op-mode(s):        32-bit, 64-bit