[ltp] Switching video output on a T23

[Alex Deucher]

On Fri, Jun 27, 2008 at 3:25 PM, Hannes Kuhnert
<hannes@froschmaschine.net> wrote:
> Henrique de Moraes Holschuh schrieb:
>> On Fri, 27 Jun 2008, Hannes Kuhnert wrote:
>> > In the past I could get LCD and VGA switched on simultaneously on a T23,
>> > at least at one with XGA display. (I own one with SXGA+ display). I did
>> > that via the /proc interface of the ibm-acpi linux kernel modul.
>>
>> It is still there, but the module was renamed to thinkpad-acpi.
>
> It seems to be a problem with updating the kernel sources via patches.
> Menuconfig didn't show it.
>
> Now that I've tested it on my T23 with SXGA+ display I have to state that
> video_switch works, but the enable and disable commands don't work. That
> means it can only switch between LCD and VGA like s3switch does. :-(

s3switch calls the same video bios functions that the apci methods call.

Alex