[ltp] thinkpad_acpi messages on brightness

Henrique de Moraes Holschuh linux-thinkpad@linux-thinkpad.org
Thu, 11 Sep 2008 20:20:26 -0300


On Thu, 11 Sep 2008, Timothy Murphy wrote:
> My /var/log/messages is filled with thousands  of messages like
> -----------------------------------------------------
> Sep  7 15:25:50 carrie kernel: thinkpad_acpi: 
>   CMOS NVRAM (0) and EC (1) do not agree on display brightness level
> -----------------------------------------------------
> I just checked, and this message is being repeated over 40 times per second.
> 
> 1. Is there any way of stopping these messages?
> 
> 2. Shouldn't there in any case be some mechanism for preventing
> this kind of repetition?

Yes.  Get a new kernel, or a thinkpad-acpi backport to get rid of the
spamming of the logs...  And give the brightness_mode=2 parameter to
thinkpad-acpi to get it to behave a lot better.

-- 
  "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