Разрешение экрана в GNOME

Добрый день.

Джентльмены, третий день бьюсь над проблемой. После обновления системы на рабочем десктопе пропало максимальное разрешение экрана. Из доступных только: 1024х768, 800х600, 640х480. Рабочее разрешение мона (Acer V203H) - 1600x900. В результате манипуляций с xorg.conf были вдруг найдены 1400х1050, 1280х1024 и 1280х960. Остальных, включая 1440х800 нет.

# uname -a
Linux gs310 2.6.34-gentoo-r1 #1 SMP Wed Sep 1 14:38:31 MSD 2010 i686 Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz GenuineIntel GNU/Linux

# lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 82G33/G31 Express Integrated Graphics Controller (rev 10)

# cat /etc/X11/xorg.conf 
Section "ServerLayout"
	Identifier     "X.org Configured"
	Screen      0  "Screen0" 0 0
EndSection

Section "Files"
	ModulePath   "/usr/lib/xorg/modules"
	FontPath     "/usr/share/fonts/misc/"
	FontPath     "/usr/share/fonts/TTF/"
	FontPath     "/usr/share/fonts/OTF/"
	FontPath     "/usr/share/fonts/Type1/"
	FontPath     "/usr/share/fonts/100dpi/"
	FontPath     "/usr/share/fonts/75dpi/"
EndSection

Section "Module"
	Load  "dbe"
	Load  "extmod"
	Load  "dri2"
	Load  "record"
	Load  "dri"
	Load  "glx"
EndSection

Section "ServerFlags"
   Option "AllowEmptyInput" "False"
   Option "AutoAddDevices"   "False"
EndSection

Section "Monitor"
   Identifier "Monitor0"
   HorizSync   30 - 70
   VertRefresh 50 - 160
   Option      "DPMS"
EndSection

Section "Device"
        ### Available Driver options are:-
        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
        ### [arg]: arg optional
        #Option     "NoAccel"            	# [<bool>]
        #Option     "SWcursor"           	# [<bool>]
        #Option     "ColorKey"           	# <i>
        #Option     "CacheLines"         	# <i>
        #Option     "Dac6Bit"            	# [<bool>]
        #Option     "DRI"                	# [<bool>]
        #Option     "NoDDC"              	# [<bool>]
        #Option     "ShowCache"          	# [<bool>]
        #Option     "XvMCSurfaces"       	# <i>
        #Option     "PageFlip"           	# [<bool>]
	Identifier  "Card0"
	Driver      "intel"
	VendorName  "Intel Corporation"
	BoardName   "82G33/G31 Express Integrated Graphics Controller"
	BusID       "PCI:0:2:0"
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Card0"
	Monitor    "Monitor0"
	SubSection "Display"
		Viewport   0 0
		Depth     24
#		Modeline "1600x900_60.00"  119.00  1600 1696 1864 2128  900 901 904 932  -HSync +Vsync
		Modes     "1600x900"
	EndSubSection
EndSection

Частично:
# lsmod 
Module                  Size  Used by
i915                  235929  2 
drm_kms_helper         23038  1 i915
snd_hda_intel          17435  0 
drm                   142104  3 i915,drm_kms_helper
snd_hda_codec          61240  2 snd_hda_codec_realtek,snd_hda_intel
i2c_algo_bit            4080  1 i915
video                  16840  1 i915
snd_pcm                54533  2 snd_hda_intel,snd_hda_codec
backlight               3296  1 video
output                  1635  1 video
snd_timer              15129  1 snd_pcm
snd                    44521  5 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_pcm,snd_timer
intel_agp              20806  2 i915
agpgart                26911  2 drm,intel_agp
i2c_core               16996  5 i915,drm_kms_helper,drm,i2c_algo_bit,i2c_i801
snd_page_alloc          6204  2 snd_hda_intel,snd_pcm
mii                     3781  1 r8169
button                  4550  1 i915

# 915resolution -l
Intel 800/900 Series VBIOS Hack : version 0.5.3

Intel chipset detected.  However, 915resolution was unable to determine the chipset type.
Chipset Id: 29c08086
Please report this problem to 

Что еще выложить?

UPD:
Извините, не сообщил: использую КВМ.