[Bug 577114] Re: Wireless and Bluetooth switch does not work correctly on lenovo ideapad s10-3

[Michael Mess]

When installing an own kernel I forgot to create the initrd.img file in /boot and thus I have noticed something interesting.

When booting, I saw that in grub menu the wireless LED was still on.

Then I selected the new kernel and got a kernel panic ("Kernel panic -
not syncing : VFS : Unable to mount root fs on unknown-block(0,0)")
because the initrd.img was missing - and then, what is interesting here,
I saw that the wireless LED was already off!

Thus the LED and thus likely the wireless hardware has been turned off
before mounting the initrd.img.

After fixing the problem and booting the new kernel, the wireless didn't
work and I had to apply the suspend workaround.

I was able to reproduce the kernel-panic problem by just renaming the
initrd.img file and saw that the wireless LED has already been turned
off when the kernel panic occurs.

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Wireless and Bluetooth switch does not work correctly on lenovo ideapad s10-3
https://bugs.launchpad.net/bugs/577114
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