Red Hat Bugzilla – Bug 425874
Thinkpad brightness controls don't work in X
Last modified: 2009-01-09 00:31:49 EST
I have installed F8 on a Thinkpad Z60m and loaded all updates. The Fn+HOME and
Fn+END do not change the brightness in X. If I switch to a text console, they
work (but switching back to X goes back to the previous brightness). Also,
echoing into /proc/acpi/ibm/brightness does not work; depending on the initial
state, the file doesn't exist and the following is in the kernel log:
thinkpad_acpi: CMOS NVRAM (6) and EX (0) do not agree on display brightness level
This all works in FC6 on the same notebook.
I updated to xorg-x11-drv-ati-6.7.196-4.fc8 from updates-testing, and I have
brightness hot-keys back. thinkpad_acpi is still unhappy (same error and no
/proc/acpi/ibm/brightness), but the functionality works in X. The Bluetooth
enable/disable doesn't work from Fn+F5, but does with /proc/acpi/ibm/bluetooth,
so there is still some "oddness" with thinkpad_acpi (stuff that worked before).
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