switching Thinklight by software? - was: Re: [ltp] success story: Thinkpad T23

James McKenzie linux-thinkpad@linux-thinkpad.org
Wed, 22 Oct 2003 20:45:10 -0700


Andre:

The American phrase is "Duh".  Or, why didn't I think of that before.

Thanks.

James McKenzie

André Wyrwa wrote:

>>How did you get the Thinklight to work?
>>    
>>
>
>Kidding?
>
>Fn+PgUp
>
>But that brings me to the idea that it might be possible to switch it
>through software by setting the appropriate bit in /dev/nvram.
>
>One could hexdump /dev/nvram, change
>the bit in the output and somehow write
>the whole stuff back. Question is how to do
>the last part - would there be a shell only (non-programming)
>solution???
>
>Is it a bad idea to write to /dev/nvram?
>
>André.
>
>  
>
>>André Wyrwa wrote:
>>
>>    
>>
>>>Hei guys,
>>>
>>>I'm just happy that I got virtually everything to work under linux on my
>>>T23
>>>and so feel like writing this here.
>>>
>>>I installed a LFS system (my 6th one or so) and found the T23 the most
>>>completely linux support hardware piece I ever did build an LFS on.
>>>
>>>Things I brought to work:
>>>
>>>- core notebook ;-)
>>>- apm
>>>- ultrabay cd/rw & floppy (didn't take care about hot-/warmswapping so
>>>far)
>>>- x11 (unfortunately so far without xinerama & dri - and it crashes
>>>sometimes when switching back from vt)
>>>- sound (kernel i810 drivers - alsa was behaving strange)
>>>- internal lan
>>>- pcmcia
>>>- usb
>>>- irda
>>>- all other ports (except ultraport - don't have hardware yet to test
>>>it)
>>>- trackpoint
>>>- special thinkpad buttons
>>>- thinklight (surprise surprise ;-) )
>>>- docking station type 2631 (tested everything except hot-/warm-docking
>>>and
>>>internal pci-port)
>>>
>>>extras working:
>>>
>>>- wacom digitizer ii tablet (U-1212-R)
>>>- canon powershot s30 via usb
>>>- linkpro wl-2000c wlan pcmcia card
>>>- sony cliegear wlan cf card, using xircom cardcaddy (it's actually an
>>>intel
>>>wireless/pro 2011)
>>>- iomega zip drive parallel port version
>>>
>>>things not tried:
>>>
>>>- internal modem
>>>- internal wireless (my version doesn't have builtin antenna :-/ )
>>>- ultraport
>>>- hot-/warm-swapping/-docking
>>>- docks pcmcia port (although i'm convinced they are working because the
>>>kernel registers them correctly)
>>>- docks internal pci port
>>>- internal microphone
>>>- kensington lock ( ;-) )
>>>
>>>things not working:
>>>- acpi ( :-/ )
>>>
>>>Did i forget something?
>>>
>>>If interested you can find more info on:
>>>http://www.subspace2000.de/andre/linux/hardware/t23linux.htm .
>>>
>>>BTW: if somebody could help me with the X crashing problem, I'd
>>>appreciate
>>>that. I'm running Xfree86 4.3.0
>>>with the distributed savage 1.0.26t. I know there's X 4.3.0.1 and savage
>>>1.0.27t, just didn't try updating yet. If I'd be sure what it is I'd do
>>>so.
>>>
>>>And I have another (off-topic) problem: I'm usually mailing with
>>>evolution,
>>>but recently it doesn't want to send mails anymore. Just tells me "MAIL
>>>FROM
>>>response error: Command not implemented". Did find something about a
>>>glibc
>>>but through google, but since it worked in the beginning and I didn't do
>>>anything with my glibc i'm a bit confused about it.
>>>
>>>regards,
>>>Andre.
>>>
>>> 
>>>
>>>      
>>>
>
>  
>