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

Sat Feb 7 12:26:37 PST 2015

On Sat, Feb 7, 2015, at 12:15 PM, Aleksander Morgado wrote:
> On Mon, Jan 26, 2015 at 11:54 PM, Isaac Raway <isaac at mm.st> wrote:
>> On Mon, Jan 26, 2015, at 04:43 PM, Dan Williams wrote:
>>
>> On Mon, 2015-01-26 at 16:36 -0600, Isaac Raway wrote:
>>
>> 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
>>
>>
>> Could you attach the files that 'acpidump > acpi.txt' and 'dmidecode
>> > dmi.txt' produce to the bug report?
>>
>>
>> Done
>>
>> IJR
>>
>
> So... once the magic "DMS Set FCC Auth" command is sent to the
> Dell-branded modem (as Sierra's GobiNet driver does), the modem can
> directly go out of low-power mode:
>
> $ sudo qmicli -d /dev/cdc-wdm1 --dms-get-operating-mode
> [/dev/cdc-wdm1] Operating mode retrieved: Mode: 'low-power' HW
> restricted: 'no'
>
> $ sudo qmicli -d /dev/cdc-wdm1 --dms-set-fcc-authentication
> [/dev/cdc-wdm1] Successfully set FCC authentication
>
> $ sudo qmicli -d /dev/cdc-wdm1 --dms-get-operating-mode
> [/dev/cdc-wdm1] Operating mode retrieved: Mode: 'online' HW
> restricted: 'no'
>
> This is already in libqmi git master.

Just pulled it down and did a build, after setting this I am able to
connect. Can still connect after a warm boot, but to connect after a
cold boot with I have to stop ModemManager and NetworkManager, set the
new command, then restart the services to get it to work. I assume at
some point this could get worked into ModemManager?

Thanks so much to you guys, it is amazing to have this working and my
linux setup is now basically perfect. :)

IJR

p.s. the script I'm using to enable the modem is pretty simple but in
     case anyone else wants it to use with this build of qmicli:

#!/bin/bash
QMICLI=/home/iraway/bin/qmicli

# ModemManager needs to be stopped to send theh FCC Authentication
# command The NetworkManager applet in XFCE won't repopulate options
# until NetworkManager is restarted as well, so we stop that too.
systemctl stop NetworkManager systemctl stop ModemManager

# Send the new command using patched qmicli
$QMICLI -d /dev/cdc-wdm0 --dms-set-fcc-authentication

# Restart services
systemctl start ModemManager systemctl start NetworkManager

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