[ltp] tpacpi bug in tpacpi::thinklight/brightness for X1 Carbon

[Yves-Alexis Perez]

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On Wed, Jan 01, 2014 at 09:55:50PM +0100, Joachim Breitner wrote:
> Hi,
> 
> Am Sonntag, den 29.12.2013, 17:29 +0100 schrieb Sandro:
> > For a while, I thought the keyboard backlight couldn't be controlled
> > through tpacpi, period. After asking a question
> > <http://askubuntu.com/questions/383501/> I got an interesting answer:
> > 
> > The keyboard backlight can in fact be turned off using the following
> > command:
> > echo 0 > /sys/class/leds/tpacpi\:\:thinklight/brightness
> > It's just that it cannot be turned /on/, which is what I am trying to
> > do .
> 
> this sounds as if it might not be specific to X1, but most newer
> thinkpads, as mentioned for example on
> http://unix.stackexchange.com/questions/96666/pidgin-blinklight-not-working-with-thinkpad-acpi-t430
> 
> I’m looking forward to what you might find; I’d really like to be able
> to use pidgin-blinklight again (using a T430s here).

On my x230, thinklight and keyboard backlight work just fine using
Fn+space.

Regards,
- -- 
Yves-Alexis
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