Project

General

Profile

Bug #581

No/Poor Video With Radeon Chips on Ubuntu-derivative LiveCD

Added by Daniel Curtis about 9 years ago. Updated about 9 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Category:
Workstation
Start date:
03/09/2015
Due date:
% Done:

100%

Estimated time:
0.10 h
Spent time:

Description

Radeon will not boot to the desktop without a boot command on the LiveCD. You will need this for booting the installation media but once the system is installed, it is unnecessary. That means if you use the alternate installer, netboot, or something other than the desktop ISO, this is not needed.

  • NOTE: nVidia, Radeon, and ATI chips all display different behaviors. This workaround only applies to Radeon chips. If you are not sure what you have, you can boot into the system (even an old LiveCD will work) and issue the following command to see what video chip you have:
    lspci | grep -i vga
    

If you do not see "Radeon," then don't expect this to solve your problem.

  • At the boot: prompt type:
    live video=radeonfb:1024x768-32@60
    
    1. video=radeonfb: sets the radeon framebuffer
    2. 1024x768 is the xy resolution
    3. 32 is the bpp
    4. 60 is the refresh rate in Hertz

In general, these default settings should suffice for most people.

Resources

#1

Updated by Daniel Curtis about 9 years ago

  • Status changed from New to Resolved
  • % Done changed from 0 to 100
#2

Updated by Daniel Curtis about 9 years ago

  • Status changed from Resolved to Closed

Also available in: Atom PDF