Lucid switchuser causes black screen

Thu May 27 18:18:19 UTC 2010

On 05/27/2010 06:53 AM, emigrant wrote:
> On Tue, 2010-05-25 at 20:27 -0700, NoOp wrote:
>> On 05/24/2010 07:36 PM, arshad wrote:
...
>> > no i'm using ati.
>> > 
>> ...
>> 
>> I finally just filed a new bug for my issue under the nvidia-96 package:
>> <https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-96/+bug/585685>
>> 
>> 
> 
> on a side note,
> im not only getting black screen,
> sometimes i get freeze in the login screen once i hit enter after giving
> the password for my a/c. (the display is still visible)

That sounds like a ATI KMS/Plymouth issue. You might try booting with
'radeon.modeset=0' in your linux line (grub2) or kernel line (grub1) and
see if that changes anything.

https://wiki.ubuntu.com/X/KernelModeSetting
https://launchpad.net/+search?field.text=radeon.modeset%3D0