Re: X61 brightness again

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On Mon, 28 Jan 2008, Jim Paris wrote:
> Thanks for the update.  Is there anything else that 2.6.25 will
> provide, or is telling it not to handle brightness the only

It is too early to tell...

> improvement?  If that's all, I don't see how that's an improvement
> over what I'm currently doing by not loading video.ko.  I still won't

Maybe video.ko will be able to be told not to react to the events, and just
report them AND export the backlight interface to userspace.  That would fix
the issues people have currently (when they are caused by bad userspace
configuration, usually by distros).

> Also, is ibm-acpi-2.6.git the right thing to get to test these
> improvements?  Or linux-acpi-2.6.git, or...?

linux-acpi-2.6.git.  But Len has not merged the latest thinkpad-acpi code
yet, so what is there is no good.

And trying to even run 2.6.25 right now is Not Recommended unless you *know*
what you are doing.  It is probably extremely broken.  Heck, I don't trust
even 2.6.24 yet...

> acpi_listen shows the brightness up/down events the same regardless of
> whether video.ko was ever loaded, so that trick doesn't seem to affect
> anything here.  So my solution for now will likely be an ACPI handler

That means you already have the good behaviour (you get the events). Nice.

You will need acpi handlers, yes.  I wish I knew how to ask the kernel "is
the current VT a text console, or a X video port?", but I have
no idea how to do that.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh

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