Bug#435114: Dynamic Clock scaling disabled

[Alex Deucher]

On 9/14/07, Nadav Kavalerchik <nadavkav at netvision.net.il> wrote:
> dynamic clock scaling was disabled. i just gave an example to what causes a
> similar visual effect.
>
> I'm not sure it's dynamic clock because i always had it disabled.
> only, one time when i enabled it, i saw that it gave me a similar visual
> effect like the bug I'm describing.
>
> is there a way to send a command to the X to disable it after it was
> initialized ? just to check if it helps remove the visual distortion ?

no.  if you don't enable it, it doesn't actually do anything.

>
> where can i find the set of command that get "fired up" when the screen
> dip-switch senses an opening of the laptop's screen ?
>

That's probably the problem.  when you open or close the lid, in most
cases the bios in your laptop re-programs the video hardware behind
the driver's back.  Ideally you'd want to disable that and use acpi
events to have X blank the screen directly.

Alex