I recently installed Ubuntu 12.04 on an old Sony laptop and I've had a problem I've never seen before. The side bar menu text, the dropdown menu text and sometimes the background image weren't rendering properly. After a system update it got a little better, but still after using the computer for a few days the problem comes back. Here is a screenshot of how it looks like:
The problem persists also when I use Gnome or Unity2D. I don't know if it is a driver issue or a hardware problem or what it is. Has someone else seen this problem and knows what causes it and hopefully how to fix it?
More info:
lspci -nnk | grep -iA2 VGA 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)
Subsystem: Sony Corporation Device [104d:9035]
Kernel driver in use: i915
lspci -nnk | grep -iA2 VGA
and make sure you're using right drivers askubuntu.com/questions/47506/…:~$ lspci -nnk | grep -iA2 VGA 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) Subsystem: Sony Corporation Device [104d:9035] Kernel driver in use: i915