[ltp] Can bot use Fn+F7 to switch LCD/CRT on Thinkpad X60s

[Alex Deucher]

On 12/5/06, gulfstream <gulfstream.wang@gmail.com> wrote:
> Could you illustrate me how to solve this problem. Thanks.

See my previous email.  If fn-f7 doesn't work when just grub or the
bios is active then, I suspect you are out of luck.  You'll have to
use the dualhead and clone features of the xorg driver which won't
help with the console.

Alex

>
> gulfstream
>
>
> 2006/12/5, Alex Deucher <alexdeucher@gmail.com>:
> > On 12/5/06, gulfstream <gulfstream.wang@gmail.com > wrote:
> > > I want to switch lcd/crt in X window and tty, but xorg.conf is useful to
> > > xorg. How to do if I want to switch lcd/crt in tty?
> > >
> >
> > fn-F7 should work, however, depending ot the mask setting for the ibm
> > hotkeys, they may be generating acpi events rather than actually
> > running the bios video switch routines.  It also may be a limitation
> > of the bios.  The bioses tend to be pretty picky about what modes they
> > will try on both outputs, especially if you are running vesa fb or
> > something similar.  Also, the intel chips are not able to drive both
> > LVDS and the DAC with the same crtc, so in order to do LVDS plus DAC,
> > you need both crtcs, which may not be possible in text mode.
> >
> > Alex
> >
> > >
> > > gulfstream
> > >
> > > 2006/12/5, Richard Neill < rn214@hermes.cam.ac.uk>:
> > > >   gulfstream wrote:
> > > > > I have use ibm_acpi module in my kernel( 2.6.18), and I can use
> Fn+F4 to
> > > > > suspend to RAM and Fn+F12 to suspend to disk. But the system do not
> > > > > respond to Fn+F7, so I can not switch the LCD and external CRT.
> > > > > Moreover, when I run "echo video_switch > /proc/acpi/ibm/video" in
> the
> > > > > terminal, no any respond. How to solve this matter?
> > > > >
> > > > > My laptop is Thinkpad X60s with Intel 945GM graphics chipsets. The
> > > > > system is Debian etch with tpb installed.
> > > > >
> > > >
> > > >
> > > > At least on some machines, it's necessary to enable a flag in
> xorg.conf,
> > > > iirc: EnableBiosHotKeys.  Read  man `your-Xorg-driver`.
> > > >
> > > > HTH,
> > > >
> > > > Richard
> > > > --
> > > > The linux-thinkpad mailing list home page is at:
> > > >
> > >
> http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
> > > >
> > >
> > >
> > --
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> >
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> >
>
>