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Linux - Laptop and Netbook Having a problem installing or configuring Linux on your laptop? Need help running Linux on your netbook? This forum is for you. This forum is for any topics relating to Linux and either traditional laptops or netbooks (such as the Asus EEE PC, Everex CloudBook or MSI Wind).


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Old 05-14-2008, 03:01 AM   #1
Registered: Jul 2004
Distribution: Gentoo, CentOS
Posts: 92

Rep: Reputation: 15
thinkpad r61 backlight problem

I have just bought a new thinkpad r61 laptop, and I have installed gentoo on it. When I load the module "thinkpad_acpi", I get the following in dmesg.

thinkpad_acpi: ThinkPad ACPI Extras v0.19
thinkpad_acpi: ThinkPad BIOS 7LETB6WW (2.16 ), EC 7KHT24WW-1.08
thinkpad_acpi: Lenovo ThinkPad R61
thinkpad_acpi: radio switch found; radios are enabled
thinkpad_acpi: standard ACPI backlight interface available, not loading native one...
input: ThinkPad Extra Buttons as /class/input/input7

But even though it claims to have detected that the standard acpi backlight interface is available, but for some reason the device isn't being created in /proc/acpi/ibm
Old 05-29-2008, 05:42 AM   #2
LQ Newbie
Registered: Mar 2003
Location: germany
Distribution: debian redhat suse
Posts: 1

Rep: Reputation: 0
I have had this problem at the beginning with my thinkpad R61. I managed to see the /proc/acpi/ibm/brightness control after loading the thinkpad_acpi module with the following parameters:

options thinkpad_acpi hotkey=enable,0xffffffff brightness_enable=1 fan_control=1



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