Cannot change screen brightness on Thinkpad X201
Bug #584635 reported by
Paul Yasi
This bug affects 3 people
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| acpi (Ubuntu) |
New
|
Undecided
|
Unassigned | ||
Bug Description
Binary package hint: acpi
I cannot change the screen brightness in Ubuntu 10.04 using the 2.6.32-22-generic ubuntu kernel. The brightness is on full and cannot be lowered with either the Fn buttons or by running a command like echo 50 > /proc/acpi/
| description: | updated |
Revision history for this message
| Paul Yasi (paul-citrusdb) wrote | #1 |
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The patched kernel posted in the comments of bug #554569 appears to correct this problem when one switches back to the default of no xorg.conf, and does not use xforcevesa or i915.modeset=0 in grub.
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