resolution 800x600 nvidia 319.32 kernel 3.11.0.8

Screen 0: minimum 8 x 8, current 800 x 600, maximum 8192 x 8192
DVI-I-0 disconnected (normal left inverted right x axis y axis)
VGA-0 disconnected (normal left inverted right x axis y axis)
TV-0 disconnected (normal left inverted right x axis y axis)
DVI-I-1 connected primary 800x600+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   800x600 60.3*+

j'ai un 24" , normalement 1920x1200 60hz

System information report, generated by Sysinfo: 20/09/2013 12:41:19
http://sourceforge.net/projects/gsysinfo

SYSTEM INFORMATION
 Running Ubuntu Linux, the Ubuntu 13.10 (saucy) release.
 GNOME: 3.8.4 (Ubuntu 2013-09-04)
 Kernel version: 3.11.0-8-generic (#15-Ubuntu SMP Fri Sep 20 04:11:16 UTC 2013)
 GCC: 4.8 (i686-linux-gnu)
 Xorg: 1.14.2.901 (1.14.3 RC 1) (29 August 2013 12:04:55PM)
 Hostname: patricia-desktop
 Uptime: 0 days 0 h 1 min

CPU INFORMATION
 GenuineIntel, Intel(R) Pentium(R) 4 CPU 3.40GHz
 Number of CPUs: 2
 CPU clock currently at 3391.665 MHz with 1024 KB cache
 Numbering: family(15) model(3) stepping(4)
 Bogomips: 6783.33
 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe constant_tsc pebs bts pni dtes64 monitor ds_cpl cid xtpr

MEMORY INFORMATION
 Total memory: 1001 MB
 Total swap: 1021 MB

STORAGE INFORMATION
 SCSI device - scsi0
  Vendor: ATA
  Model: TOSHIBA DT01ACA0

HARDWARE INFORMATION
MOTHERBOARD
 Host bridge
  Intel Corporation 82915G/P/GV/GL/PL/910GL Memory Controller Hub (rev 04)
  Subsystem: Micro-Star International Co., Ltd. Device 7033
 PCI bridge(s)
  Intel Corporation 82915G/P/GV/GL/PL/910GL PCI Express Root Port (rev 04) (prog-if 00 [Normal decode])
  Intel Corporation 82801 PCI Bridge (rev d3) (prog-if 01 [Subtractive decode])
 ISA bridge
  Intel Corporation 82801FB/FR (ICH6/ICH6R) LPC Interface Bridge (rev 03)
  Subsystem: Micro-Star International Co., Ltd. Device 7033
 IDE interface
  Intel Corporation 82801FB/FW (ICH6/ICH6W) SATA Controller (rev 03) (prog-if 8a [Master SecP PriP])
  Subsystem: Micro-Star International Co., Ltd. Device 7033

GRAPHIC CARD
 VGA controller
  NVIDIA Corporation G86 [GeForce 8500 GT] (rev a1) (prog-if 00 [VGA controller])

SOUND CARD
 Multimedia controller
  Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller (rev 03)
  Subsystem: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller

NETWORK
 Ethernet controller
  Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
  Subsystem: Micro-Star International Co., Ltd. Device 033c

NVIDIA GRAPHIC CARD INFORMATION
 Model name: unknown
 Card Type: unknown
 Video RAM: unknown
 GPU Frequency: unknown
 Driver version: NVIDIA UNIX x86 Kernel Module 319.32 Wed Jun 19 15:20:44 PDT 2013

# 1920x1200 59.88 Hz (CVT 2.30MA) hsync: 74.56 kHz; pclk: 193.25 MHz
Modeline "1920x1200_60.00" 193.25 1920 2056 2256 2592 1200 1203 1209 1245 -hsync +vsync