[ltp] Strange problem with Brightness, R61i

umesh b linux-thinkpad@linux-thinkpad.org
Wed, 4 Mar 2009 10:35:29 +0530


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Hi All,

I am using Kernel 2.6.28. I am facing a problem where, when on Battery power
even when i have reduced Brightness through the Fn+PgDwn keys - after a
periodic amount(around 5 mins) of time the Brightness comes back to Full up.
I have to manually bring that down again. I have two queries.

1)Which options i can set in Kernel Build to a ACPI debug(if it is an ACPI
issue)?
2)Which logs to check for the debug messages?

Pleas reply if more info is required for this issue.

I am using debian Lenny.

Regards,
Umesh

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<div class=3D"gmail_quote">Hi All,<br><br>I am using Kernel 2.6.28. I am fa=
cing a problem where, when on Battery power even when i have reduced Bright=
ness through the Fn+PgDwn keys - after a periodic amount(around 5 mins) of =
time the Brightness comes back to Full up. I have to manually bring that do=
wn again. I have two queries.<br>

<br>1)Which options i can set in Kernel Build to a ACPI debug(if it is an A=
CPI issue)?<br>2)Which logs to check for the debug messages?<br><br>Pleas r=
eply if more info is required for this issue.<br><br>I am using debian Lenn=
y.<br>

<br>Regards,<br><font color=3D"#888888">Umesh</font></div>

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