Comment 31 for bug 1069707

Maurs, thank you for providing the requested information. Continuing to not patch, or use acpi_backlight=vendor and acpi_sleep=nonvs, the next step is to perform a Ubuntu kernel bisect from 3.2.0-32 to 3.5.0-17.28, in order to identify the last good Ubuntu kernel version, followed immediately by the first bad one. As per https://launchpad.net/ubuntu/quantal/+source/linux we have:
3.2.0-24.37
3.4.0-1.1
3.4.0-1.2
3.4.0-1.3
3.4.0-2.4
3.4.0-2.5
3.4.0-2.6
3.4.0-3.7
3.4.0-3.8
3.4.0-4.9
3.4.0-4.10
3.4.0-5.11
3.5.0-1.1
3.5.0-2.2
3.5.0-3.3
3.5.0-4.4
3.5.0-5.5
3.5.0-6.6
3.5.0-7.7
3.5.0-8.8
3.5.0-9.9
3.5.0-10.10
3.5.0-11.11
3.5.0-12.12
3.5.0-13.13
3.5.0-13.14
3.5.0-14.15
3.5.0-14.16
3.5.0-14.17
3.5.0-14.18
3.5.0-14.19
3.5.0-15.20
3.5.0-15.21
3.5.0-15.22
3.5.0-15.23
3.5.0-16.24
3.5.0-16.25
3.5.0-17.26
3.5.0-17.27
3.5.0-17.28

Hence, could you please test 3.5.0-8.8 via https://launchpad.net/ubuntu/+source/linux/3.5.0-8.8/+build/3702770 ?

Once this test is complete, could you please continue to bisect following https://wiki.ubuntu.com/Kernel/KernelBisection ?

Thank you for your understanding.

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