Sreen blanking [was Re: acpi-20021101, Dell inspiron 8100 report.]

Pavel Machek
2002-11-16T15:23:54Z

Hi!

> > > >>I am using acpi-20021101 on a dell inspiron 8100. When I try to go
> > > >>into S1 sleep computer does not sleep. Te power button blinks on and
> > > >>off, which is unusal, and the screen never blanks, even when I close
> > > >>the lid. I do have acpid setup to send echo 1 > /proc/acpi/sleep
> > > >>
> > > >>Is there anything I can send to the list to help with diagnostics?
> > > >>
> > > >>
> > > >
> > > >Screen staying on is normal. Does it wake up
> > > >when you press power?
> > > >
> > > >
> > > >
> > > When I press power to restore the console is always locked up tight. I
> > > cannot use keyboard or mouse, but if I am in X my X console usually
> > > works after restore, but not all the time.
> >
> > Hmm, strange.
> >
> > > How can I make the screen blank when I go into sleep?
> >
> > No idea, there is not much about screenblanking in acpi specs.
> >
>
> If you are lucky, try first DPMS. If it doesn't work, you have to

DPMS does not work at least on toshiba 4030cdt. (tried long and hard).

> know what kind of video chipset you have, then you should be able
> to control the Flat Panel controller (should be attached to the I2C
> interface of the video chipset), or control it via some register (again,
> of the video chip).

This looks like awfull lot of work, special for each notebook
:-(. Intel should define control method for blanking screen.
Pavel
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