[ltp] T60, R60, Z61 also may have the same issue

Rob Hess linux-thinkpad@linux-thinkpad.org
Mon, 1 Jan 2007 18:04:21 +0000


On 12/31/06, Henrique de Moraes Holschuh <hmh@hmh.eng.br> wrote:
> On Sun, 31 Dec 2006, Henrique de Moraes Holschuh wrote:
> > Well, I have finally got down to try to track the bug with brightness in X60
> > ThinkPads.
>  for me to take? for me to take?
> I have just been told elsewhere in this thread by Chris Hanson that T60 with
> BIOS 2.x also have this bug, so I am also interested in T60 reports.

I have a T60 with BIOS 2.1 and firmware 1.7 (according to dmidecode).
I am suffering from the problems you described in your earlier email.
Namely, fn-end and fn-home both work correctly to turn the brightness
up and down, but only fn-end (brightness down) is picked up by tpb.
fn-home generates the following acpi events:

Jan  1 09:46:23 calvin logger: ACPI event unhandled: ibm/hotkey HKEY
00000080 00001010
Jan  1 09:46:23 calvin logger: ACPI event unhandled: video LCD0
00000086 00000000

I do not have any confusion between fn-f7 and fn-home.  `echo {4,5} >
/proc/acpi/ibm/cmos` work correctly to turn brightness up and down,
and tpb displays the results of both.

Can you recommend any immediate course of action?

Thanks for your work.

-Rob


> It is likely that the R60 and Z61 with 2.x BIOS might have the same issue,
> so if you have any of these machines with a 2.x BIOS, please reply telling
> us whether it shows the brightness issue or not.
>
> Obviously, I am interested in answers to the X60 questions from onwers of
> *any* machine that has the problem, even if it is not a X60.
>
> --
>   "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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