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Old 06-22-2014, 06:16 PM   #1
Registered: Jun 2014
Distribution: CentOS 6.5
Posts: 67

Rep: Reputation: Disabled
ACPI: Unable to dock!


I have problem with resume from suspend mode in x220 lenovo thinkpad.

I made couple of tests, and i reached a conclusion, that problem is occurring when i suspend laptop with plugged in usb wifi adapter alfa awus 036nha, and when i resume with still plugged in adapter.

When i do not plug anything - it's just fine.
When i suspend with usb adapter, and disconnect it while in suspend mode - resumming is fine too.

When i have plugged in usb adapter and i resumming i see black screen with:
ACPI: Unable to dock!
But sometimes i see just underscore.
(I read somewhere to not to panic, and wait couple of minutes)
After few minutes desktop shows up.
But bultin in wireless card, bluetooth and usb wifi adapter not working.
When i'm trying reboot i see:

ACPI: Unable to dock!
ath9k_htc 1-1.2:1.0 reset_resume error -2
ath9k_htc 1-1.2:1.0 resume error -2
And this is happenning till i remove usb adapter.

There are logs from suspend time to resume time:

How to fix that long resumming time ?
Old 06-25-2014, 08:59 PM   #2
Senior Member
Registered: Jan 2009
Location: RHELtopia....
Distribution: Solaris 11.2/Slackware/RHEL/
Posts: 1,491
Blog Entries: 2

Rep: Reputation: Disabled
It seems related to kernel bug 57341
This individual claims to have resolved it with a "reset usb" c program
This one has a series of patches he thinks fixes it...

For my money, I'd try to compile the code the first guy offers. It requires user intervention but I am alergic to kernel patches from unknown sources.


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