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[Bug 308264] ibm thinkpad acpi broken? No backlight changes
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Wed, 13 Feb 2008 07:22:44 -0700 (MST)
  • Message-id: <20080213142244.84AFB24538D@xxxxxxxxxxxxxxxxxxxxxx>

User trenn@xxxxxxxxxx added comment

--- Comment #40 from Thomas Renninger <trenn@xxxxxxxxxx> 2008-02-13 07:22:43
MST ---
I really don't want to spend any more time on this for 10.3.
Lenovo changed the mechansim twice on latest XY60 and XY61 models.
From 7 to 15 brightness levels and from Lenovo specific to ACPI specified
brightness behaviour. This is not only model, but also BIOS dependent.

It would be great if you install latest 11.0 release into a small, free
There it's worth to provide Henrique (thinkpad driver maintainer) with as much
info as possible and pre-debug this with a novell bugzilla entry.
Henrique is doing backports of his latest code to several older kernel
I could integrate his backports..., but IMO too much work has been done here
and there is risk to break other (especially older machines).

For now I backported the latest thinkpad_acpi driver version to our 2.6.22
kernel and you can fetch a kernel from here (i386/x86_64)

Please try it out (as much people as possible).
If reports are possitive, I will attach the patch here. I will still add some
people for review and discussion whether it makes sense to add such a huge
thing to the 10.3 kernel then.

As said, please also give 11.0 a test in time. In Beta phase it is still easy
to add fixes, as soon as the product is released, it's not.

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