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my desktop PC using ati radeon hd 4350, when i installed ubuntu 11.04 and running application for checking and install propertary VGA driver (jockey-gtk) then my 11.04 screen resolution, activating desktop effect compiz,etc works well.

but the problems comes after i upgraded ubuntu from 11.04 to 11.10 , i can't login to my account but works by using guest account. and my 11.10 not detecting ati radeon hd 4350 although i reinstall then reactivated the propertary driver.

Thanks for any suggestion and help.

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2 Answers

I´ve had a similar problem on a HP Pavilion 1700N Desktop with an Nvidia 6150 LE. The following solved the problem for me:

  1. Boot with option "nomodeset".
  2. Install the vendor´s latest driver (http://us.download.nvidia.com/XFree86/Linux-x86_64/290.10/NVIDIA-Linux-x86_64-290.10.run in this case).
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AMD Catalyst 11.10 is out by now. Maybe you should install it manually, because of this :

AMD announced last evening, October 31st, the immediate availability for download of the AMD Catalyst 11.10 video driver for Linux platforms.

The new AMD Catalyst 11.10 driver brings initial support for the Ubuntu 11.10 (Oneiric Ocelot) operating system. It also brings production support for the Red Hat Enterprise Linux 5.7 operating system.

A few improvements are also present in the new AMD Catalyst 11.10, especially for the AMD Brazos platform, as well as lots of bugfixes, such as a segmentation fault issue for the Ubuntu 11.04 (Natty Narwhal) 64-bit edition and GNOME Shell corruption issues.

I Thing your problem will be fixed after a driver upgrade ;)

Here's 11.10 Driver for both x86 and x86_64 Linux Distros.

http://www2.ati.com/drivers/linux/ati-driver-installer-11-10-x86.x86_64.run

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