On Thu, Jun 20, 2013 at 4:10 AM, ATIpro <[email protected]> wrote:
>> I have no idea on the bug, and reported it on linux-usb list already.
>
> This issue exist in Debian 6 with kernel 2.6.32. I haven't tested older
> kernels, but I can do that if it helps.
> Bios (UEFI) of this laptop is very limited in terms of configuration, there
> is no usb configuration at all. This problem exists both in legacy and native
> uefi modes.
> During bios initialization this port works. So I can plug there flash drive
> with live linux distribution and successfully see GRUB/Syslinux/etc from it.
> But during running initramfs LED on flash drive stops glowing and after
> timeout I see Busybox line with error about missing root partition.
Yes, upstream guy thought it might be caused by BIOS, see
http://marc.info/?t=137160415400003&r=1&w=2
Could you try to upgrade to a newer BIOS version?
Or have you done the tests below?
- plug one 2.0 devices to 2.0 port, then power on machine to see
if they can be found in 2.0 bus
If not, I suggest you to give it a try.
Thanks,
--
Ming Lei
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https://bugs.launchpad.net/bugs/1172908
Title:
USB 2.0 Ports Dont Work on Sony Vaio Laptop
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