https://bugzilla.kernel.org/show_bug.cgi?id=60161
Summary: Backlight dark and wireless button not working on
Fujitsu E753
Product: ACPI
Version: 2.5
Kernel Version: 3.9.7
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: ACPICA-Core
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: Yes
On my Fujitsu Lifebook E753 I experienced some "regressions" with
current kernel versions (e.g. 3.9.7) compared to linux 3.5 (used in Ubuntu
12.04
for instance):
- on bootup backlight is extremely dark (I can change it though)
- the wireless button does not work any more
Recently I did a bisect and found out, that the "regression" was
introduced with commit "a57f7f9175b8ccbc9df83ac13860488913115de4".
Searching the internet I read about a bootloader option
"acpi_osi="!Windows 2012" which solved the issue for me.
I reported it on the linux-acpi mailing list and was asked to report it here
and add a acpidump. Perhaps I have done something wrong but all I get is:
Linux version not implemented yet
Could not get ACPI tables, AE_SUPPORT
If you need some additional information tell me.
Thanks.
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