[ltp] Brightness Buttons

[Thomas Kahle]

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Michael Gaber wrote:
| i noticed that it might be a problem with newer kernels, i don't have
| anything from these buttons when the kernel states
| "processing uevents"

Ok, at this point udev is run and it will load "thinkpad-acpi". There is
also this message in kernel log:
thinkpad_acpi: ThinkPad ACPI Extras v0.19
thinkpad_acpi: http://ibm-acpi.sf.net/
thinkpad_acpi: ThinkPad BIOS 7NETA7WW (2.07 ), EC 7MHT25WW-1.03
thinkpad_acpi: Lenovo ThinkPad X61s
thinkpad_acpi: radio switch found; radios are enabled
thinkpad_acpi: standard ACPI backlight interface available, not loading
native one...

Googling the last one taught me, that one can switch to the native one
by giving some option that i dont remember, but this did not change
anything. And: unloading the module does not bring back the
functionality of the bios.

| before (bios, grub initramfs, start of boot) the buttons work just fine
| (2.6.24 + some patches here)
Yes, same here, control works before kernel loads.

|
| Thomas Kahle schrieb:
|> Hi everyone,
|>
|> i recently upgraded the BIOS of my X61s to version 2.07.
|> Now the brightness keys(Fn+home and Fn+end) don't send acpi events
|> anymore. (and acpid cannot respond...)
|> The other Fn+something keys work perfectly.
|> I use thinkpad-acpi version 0.19 which is included in kernel 2.6.25-r6
|> Any ideas where to start investigation ?
|>
|> Thanks
|> Thomas

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