Eli Fox-Epstein, if you remove all non-default kernel boot parameters
(ex. nomodeset video.use_native_backlight=1) does this change anything?
** Tags added: bios-outdated-2.60
** Changed in: linux (Ubuntu)
Importance: Medium = Critical
** Changed in: linux (Ubuntu)
Importance: Critical =
apport information
** Tags added: apport-collected third-party-packages
** Description changed:
Running 14.04, just upgraded. I can no longer adjust my backlight on my
ThinkPad T530. I am attaching a number of files as requested in
https://wiki.ubuntu.com/Kernel/Debugging/Backlight. See
Since the bug report failed to get dmesg for some permissions issues,
here it is.
** Attachment added: dmesg
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1324529/+attachment/4122263/+files/dmesg
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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You received
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.15 kernel[0].
If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.
If the mainline kernel does not fix
Hi Joseph, I don't really feel comfortable installing a new kernel. I'm
adding the 'kernel-unable-to-test-upstream' tag.
** Tags added: kernel-unable-to-test-upstream
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