Forgot to mention download alternative cd install in text mode
when you restart choose safe mode option.Wait for command prompt type lspci
get the busid number for your pci graphics card mine was 01:00:0 it might list
two use the vga one.Then back at the command prompt type sudo dpkg-reconfigure
xserver-xorg choose ati then tab and enter.Go through all the options when you
get to your pci busid type the number of your card in.Then restart pc worked
for me if you get an error message could not allocate pci region 0 or something
like that
pc will still start but do this work around:Open you GRUB configuration file.
sudo gedit /boot/grub/menu.lst
To proceed, you'll need to know the framebuffer code for your desired
resolution:
Code
Resolution
vga=785 640x480
vga=788 800x600
vga=791 1024x768
vga=794 1280x1024
1.
Automatic (and update-proof) GRUB Configuration
Find the line
# defoptions=quiet splash
and add your framebuffer resolution code, e.g. (for 1024x768)
# defoptions=quiet splash vga=791
Save the file, then execute
sudo update-grub
This will now keep even after any future kernel update, unlike the
method below. You're all done.
*
--
[regression][rv280] black screen and console freeze when X starts - drm lockup
https://launchpad.net/bugs/67487
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