[Dell Inspiron 6400] Laptop screen is turned off, needs shutdown to work again

[Michel Dänzer]

I accidentally discarded your post from the mailing list moderation
queue instead of approving it. Please resend it or, even better, file a
bug report, see below. Sorry for the inconvenience.


On 12.06.2014 03:30, Mondane Woodworker wrote:
> 
> - open dash
> - search for 'term'
> - start the 'Terminal'
> - enter the following command: 'dmesg | less'
> - scroll the text using the cursor keys
> - within a few lines scrolled, the screen goes black

It looks like the screen goes black because of an unrecoverable GPU
lockup. GPU lockups are usually caused by bugs in the userspace driver
components. Can you try narrowing down which userspace component is at
fault:

If

	Option	"EXANoComposite"

in xorg.conf works around the problem, please file a bug at
https://bugs.freedesktop.org/enter_bug.cgi?product=xorg , component
Driver/Radeon.

If using a different desktop environment (preferably not using an OpenGL
compositing manager) works around the problem, please file a bug at
https://bugs.freedesktop.org/enter_bug.cgi?product=Mesa , component
Drivers/Gallium/r300.


-- 
Earthling Michel Dänzer            |                  http://www.amd.com
Libre software enthusiast          |                Mesa and X developer