После установки wheezy почему-то не заработали свободные драйвера, файла /etc/X11/xorg.conf нет. Команда lspci -v | grep VGA:
Flags: bus master, VGA palette snoop, 66MHz, medium devsel, latency 64
01:05.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RS880M [Mobility Radeon HD 4200 Series] (prog-if 00 [VGA controller])
[ 18.924] (II) LoadModule: "extmod"
[ 18.950] (II) LoadModule: "dbe"
[ 18.990] (II) LoadModule: "glx"
[ 19.302] (II) LoadModule: "record"
[ 19.326] (II) LoadModule: "dri"
[ 19.354] (II) LoadModule: "dri2"
[ 19.372] (II) LoadModule: "radeon"
[ 19.904] (II) LoadModule: "vgahw"
[ 19.997] (II) LoadModule: "int10"
[ 20.026] (II) LoadModule: "ddc"
[ 20.026] (II) LoadModule: "i2c"
[ 20.227] (II) LoadModule: "fb"
[ 20.238] (II) LoadModule: "ramdac"
[ 20.238] (II) LoadModule: "exa"
[ 23.485] (II) LoadModule: "evdev"
[ 23.750] (II) LoadModule: "synaptics"