How to try Ubuntu on a hp pavilion g7-1246ef computer that has no Linux suport for video card? (12.04)

I want to try Ubuntu on a hp pavilion g7-1246ef computer. I got it as a 64 bit system with a win7 64 bit but now it runs a 32 bit win 7 (due to canon printer driver issue).

The Windows device manager displays:

I have created a live USB and then CD of Lubuntu 12.04, a live usb of Ubuntu 12.04 (all 32 bit), and tried to boot in each of them, set to boot from usb, reached the page with try ubuntu but then selecting it nothing happened, or so it seemed: in fact using a 64 bit Ubuntu 12.04 live usb I was first under the same impression but when I pushed power off I realized a window was barely visible on an almost black display, and even folder icons were there but almost invisible.

I guess there are no video drivers for this system.

Is there a solution?

[This is a late edit just to put things right for reference: even without nomodeset and without the proprietary driver, my machine would still work: just that the startup luminosity level was zero and had to put it up manually.] (I do not currently use ubuntu/linux on that machine, was just interested for a solution in such cases.)

UPDATE for 14.04

With the new 3.13 kernel that video card is now well supported - more details here and here.

It seems(from your image) that you have a Radeon graphics card... This may be the problem

When you reach to try Ubuntu page, press F6 and select nomodeset option and then select Try Ubuntu and hit enter... Ubuntu will run the setup with basic Graphics. Then you'll be able to try/install Ubuntu...

While using a live USB boot, the try ubuntu page may have other options (e.g.use tab to edit): you have to edit so as to add nomodeset there: it has to look like that: quiet splash nomodeset

Then, continue to try ubuntu or install.

Hope that works :)

Cheers!