QMI protocol error (3): 'Internal' when running dms-set-operating-mode

[Isaac Raway]

On Mon, Jan 26, 2015, at 04:33 PM, Dan Williams wrote:
> On Mon, 2015-01-26 at 15:53 -0600, Isaac Raway wrote:
>> On Mon, Jan 26, 2015, at 03:12 PM, Dan Williams wrote:
>>> On Mon, 2015-01-26 at 14:42 -0600, Isaac Raway wrote:
>>>> On Mon, Jan 12, 2015, at 09:22 AM, Dan Williams wrote:
>>>>> On Mon, 2015-01-12 at 07:15 -0600, Isaac Raway wrote:
>>>>>> On Wed, Jan 7, 2015, at 09:55 AM, Dan Williams wrote:
>>>>>>> On Tue, 2014-12-30 at 11:37 -0600, Isaac Raway wrote:
>>>>>>>> One interesting note, this card works perfectly if I boot into
>>>>>>>> Windows from a USB drive (Windows was banished from the
>>>>>>>> internal SSD on purchase), connect via Dell's "SkyLight"
>>>>>>>> program, then warm-boot back to Fedora 20. In that case, the
>>>>>>>> initial power mode read from dms-get-operating-mode is "online"
>>>>>>>> rather than "low-power".
>>>>>>>
>>>>>>> This smells like rfkill driver issues. What do you get for
>>>>>>> 'rfkill list' run in a terminal under Linux from cold-boot, and
>>>>>>> does that change if you boot windows, then warm-boot to Linux?
>>>>>>
>>>>>> Cold boot and wam boot both seem to respond with the same results
>>>>>> for rfkill list and do not seem to mention the WWAN card.
>>>>>> Although it is interesting that the ID numbers(?) are different
>>>>>> and the order has changed. Not sure if that is significant.
>>>>>>
>>>>>> Cold boot:
>>>>>>
>>>>>> 1: phy0: Wireless LAN Soft blocked: no Hard blocked: no
>>>>>> 2: hci0: Bluetooth Soft blocked: no Hard blocked: no
>>>>>>
>>>>>>
>>>>>> Warm boot:
>>>>>>
>>>>>> : hci0: Bluetooth Soft blocked: no Hard blocked: no
>>>>>> 3: phy0: Wireless LAN Soft blocked: no Hard blocked: no
>>>>>
>>>>> Is this a Dell 5570 (Sierra 8805)? Also, which specific Windows
>>>>> kernel version is this machine using?
>>>>>
>>>>> If it is a Sierra 8805, can you run 'minicom -D /dev/ttyUSBx'
>>>>> (where 'x' is one of the serial ports exposed by the modem, if
>>>>> any) and then run "at!pcinfo". Try all the ports, one of them may
>>>>> respond even though the modem is usually driven by QMI.
>>>>
>>>> Got this to work after a reboot:
>>>>
>>>> at!pcinfo? State: LowPowerMode LPM force flags - W_DISABLE:0,
>>>> User:0, Temp:0, Volt:0, BIOS:1, GOBIIM:0 W_DISABLE: 0 Poweroff
>>>> mode: 0 LPM Persistent: 0
>>>>
>>>> I checked BIOS settings and was able to find only these, none of
>>>> which seem to impact the state of this result:
>>>>
>>>> Wireless Radio Control -- Control WWAN radio checkbox disabled --
>>>> was enabled, no change Wireless Device Enable -- WWAN checkbox
>>>> enabled Wireless Switch -- WWAN checkbox disabled -- was enabled,
>>>> no change
>>>
>>> So it's not really something in the BIOS setup that the modem is
>>> talking about here. It's actually just that BIOS has told the modem
>>> (somehow) to put itself into airplane mode, and that is actually
>>> controlled from the OS via special calls. These calls are usually
>>> ACPI. On Linux, there are special drivers for various vendors
>>> (hp-wmi, thinkpad-acpi, acer-laptop, etc) that do the same things,
>>> but when the vendor updates their BIOS then the Linux drivers lag
>>> behind.
>>>
>>> So my guess here is that even the BIOS setup doesn't affect
>>> anything, Windows still has a driver that is poking values into the
>>> BIOS/NVRAM on the laptop and the BIOS is still using those to
>>> disable the WWAN card. The next step is to get ACPI dumps so that
>>> kernel developers can try to update the Linux drivers. Filing a bug
>>> on https://bugzilla.kernel.org/ is probably the best way to do that.
>>
>> Thanks for your help Dan. Bug filed here if anyone cares to track:
>> https://bugzilla.kernel.org/show_bug.cgi?id=92101
>
> Quick check, is 'dell-laptop' loaded for your machine? If not, can you
> "modprobe dell-laptop" and then report the output of "rfkill list"?

Hmm it does change the output:

(iraway at procyon) [~] $ sudo modprobe dell-laptop [sudo] password for
iraway: (iraway at procyon) [~] $ sudo rfkill list
1: phy0: Wireless LAN Soft blocked: no Hard blocked: no
2: hci0: Bluetooth Soft blocked: no Hard blocked: no
3: dell-wifi: Wireless LAN Soft blocked: no Hard blocked: no
4: dell-bluetooth: Bluetooth Soft blocked: no Hard blocked: no

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