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UPDATE 1:

According to this and this, 1920x1080 should be possible:

ORIGINAL QUESTION:

According to lshw my laptop has:

VGA compatible controller
product: 82852/855GM Integrated Graphics Device
vendor: Intel Corporation
version: 02
width: 32 bits
clock: 33MHz

The laptop has a vga port allowing me to connect to my tv which also has a vga port, but I am only getting 1024x768 on the tv. How can I get 1920x1080 on the tv?

I have a 1080p tv.

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Have you tried to change the resolution with the Displays settings dialogue? –  Oli Dec 29 '11 at 13:42
    
Yes, but the only options I get are 800x600 and 1024x768. –  oshirowanen Dec 29 '11 at 13:44
    
Please see update to original question. –  oshirowanen Dec 29 '11 at 18:54

2 Answers 2

up vote 1 down vote accepted

I have the same chipset on my laptop with a VGA output.

In lucid the graphics drivers for this chipset were awful - it barely managed 1024x768 at a decent FPS rate. When I connected it to my HD tv it managed 1280x768 (i.e. widescreen) but the FPS rate was shockingly low.

Things somewhat improved with the Natty kernel (available in the software repositories) - from the community wiki:

A few months Canonical has backported kernel version 2.6.38 from Ubuntu 11.04 and version 3.0 from Ubuntu 11.10. Both versions include the bugfix for the 855GM-problem. It is strongly advised to use one of these kernel versions because the 855GM-PPA was deactivated some time ago.

Again I managed 1280x768 with a slightly better refresh rate.

A word of warning - take an drive-image backup if you intend to use the newer kernel. It took me a few attempts to get things working - for me I used Stefan Glasenhard PPA (as described in the link) and the Natty kernel to get a stable configuration.

The figures you have been quoted by Intel themselves are theoretical - you will not be able to achieve this on linux with the state of the graphics drivers. Intel themselves are no longer supporting i8xx - the support for i8xx under 12.04 is not known - but given that only VESA support was available in Natty and Oneiric and dont hold out much hope.

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I very much doubt that particular GPU can output video at 1920x1080, after all, it's about 9 years old.

http://en.wikipedia.org/wiki/List_of_Intel_chipsets

I'd be surprised if it could drive even one display with a resolution higher then 1024x768 without freezing, let alone an HD TV. If you are interested in what it can do, run xrandr in a terminal window.

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I have an Intel i8xx video card and I use the same driver and I can't output video to more than 1024x768. Don't think it is possible. –  heiko81 Dec 29 '11 at 14:06
    
Please see update to original question. –  oshirowanen Dec 29 '11 at 18:54

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