[ltp] Re: RFC: removal of video output switching from thinkpad-acpi
Paul Fox
linux-thinkpad@linux-thinkpad.org
Fri, 15 Feb 2008 07:21:55 -0500
henrique -- were these results helpful?
paul
i wrote:
> henrique de moraes holschuh wrote:
> > On Sun, 10 Feb 2008, Paul Fox wrote:
> > > i assume that by "thinkpad-acpi commands", you're referring to the
> > > scripts under /etc/acpi? if not, what should i install?
> >
> > Not really. Look in Documentation/thinkpad-acpi.txt for your kernel, and you
> > will see the entire thinkpad-acpi documentation. There is a section called
> > Video output control or somesuch, which are the commands available through
> > /proc/acpi/ibm/video. I need you to test those.
>
> okay.
>
> under X, nothing works. echoing any of the commands into the /proc node
> results in both screens being active. sometimes one blanks briefly before
> coming back.
>
> when on the console, none of the commands work, with the exception of:
> a) video_switch, which causes one, or the other, of the displays to
> be active, but never both, and
> b) a combination of "crt_enable,lcd_disable" (or vice versa), which
> act just like video_switch.
>
> under no circumstances can i get both displays on in console mode.
>
> auto-switching doesn't seem to work, at least when docking or undocking.
>
> i'm not sure how to test the expand_toggle, and i don't have a dvi output.
>
> let me know if i should try anything else.
>
> paul
=---------------------
paul fox, pgf@foxharp.boston.ma.us (arlington, ma, where it's 27.1 degrees)