dell 5050 ubutnu 10.04 screen resolution

[sandeep dubey]

Hi all,
   I bought a Dell Inspiron 5050 Laptop and installed ubuntu 10.04.
Everything is working as expected except screen resolution. My laptop
supports 1366x768 on windows, After installing ubuntu i am getting 1024x768
as default and not able to increase it. I tried xrandr but no success.
Outputs of :
lspci > 00:02.0 VGA compatible controller: Intel Corporation Device 0116
(rev 09)

$ dmesg | grep video
[    0.978043] pci 0000:00:02.0: Boot video device
[   19.130656] Linux video capture interface: v2.00
[   19.133628] uvcvideo: Found UVC 1.00 device Integrated Webcam (0bda:58c0)
[   19.139806] usbcore: registered new interface driver uvcvideo

$ dmesg | grep vga
[    0.952321] vgaarb: device added:
PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none
[    0.952340] vgaarb: loaded
[   19.025266] vga16fb: initializing
[   19.025270] vga16fb: mapped to 0xffff8800000a0000

Waiting for reply.

Thanks,
Sandeep
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