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

[Richard Neill]

gulfstream 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?

You still need something like:

Section "Device"
    ...
    Option "BiosHotKeys" "on"      #Enable Fn-F7 for switching between 
CRT,LCD,Both.
EndSection


Some of the video drivers don't pay attention to Fn-F7 by default. 
Besides which, even if you are currently looking at a tty, you are still 
using the xorg video driver [unless you use the vesa or framebuffer driver].

Root cause of problem: xorg isn't just a GUI, it also overlaps with the 
kernel, and contains hardware drivers. Notably, the video drivers are 
(mainly) in X, not the kernel.


Richard


> 
> 
> gulfstream
> 
> 2006/12/5, Richard Neill < rn214@hermes.cam.ac.uk 
> <mailto: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
> 
>