I have a desktop ACER, with an Ati Radeon HD 3650 (RV635). I always have to boot with "nomodeset" checked. It happens to me with ubuntu 12.04 and it's happening now, with ubuntu 14.04. I have installed the free drivers, but when I boot, ubuntu always use Gallium 0.4 on llvmpipe (LLVM 3.5, 128 bits). The browser doesn't work well and the videos run very choppy.

How could I make to work the proper driver for my graphic card? Anybody can help me?

(Edited) On what I'm reading I finded that perhaps I have an hybrid graphics. I'm not sure. How can I know?

(Edited 6-12) I continue making research. As the_Seppi said, my graphic card isn't supported yet by the propietary drivers, as can be seen in this site http://wiki.cchtml.com/index.php/Hardware. Ok, it's another detail. I will continue researching

(I apologise for my bad english)

At last my problem was solved in an indirect way. I was worried because the performance of all the computer was very poor. I had an old graphic card, as you see, with no propietary drivers working to get acceleration. I have installed the free drivers (gallium something on llvmpipe). The solution to get a better performance have been to install gnome over ubuntu 14.04 and forgot unity. Now everything seem to work perfectly. I don't woory about the 3D effects. Now everything is fine for me.

  • Did you check for drivers in Additional Drivers? – Rohith Madhavan Dec 3 '14 at 16:20
  • It' says "there isn't additional drivers" – jotacarlos Dec 3 '14 at 16:38
  • fglrx isn't compatible with the Radeon HD 3000 series, so you'll have no luck with these. – s3lph Dec 3 '14 at 18:04
  • I know it. I was trying to use the free drivers, but seems that it's imposible with "nomodeset" checked. But if I don't check "nomodeset", the computer boot and I can see the desktop, but everything is frozen and I can do nothing – jotacarlos Dec 4 '14 at 9:00
  • Please, can you help me? Which checkings do you recomend me to do to know what is happening in my system? – jotacarlos Dec 13 '14 at 18:52

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