cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
NikosAlexandris
SCSI Port
Posts: 55
Registered: ‎04-28-2014
Location: CH
Views: 213
Message 61 of 64

Re: X1C gen 6 - Fibocom L850-GL - Ubuntu 18.04


@intelfx wrote:
is this a Lenovo branded version?

As evident from `lsusb` listing, it is not. Lenovo-branded EM7455s have VID/PID equal to 1199:9079, while mine identifies as 1199:9071.

 

so according to you the EM7455 is in fact whitelisted in the Bios, because so far I have seen mixed reports on this.

Based on the above (there is no point for Lenovo to whitelist a generic ID pair), I'd suspect a stronger statement: that X1C6's WWAN whitelists only apply to cards with PCIe interfaces. But we'll need someone with another USB-only WWAN card to verify that.

 

have you used it yet? if so how stable is the connection?

It is stable. I do not see any problems specific to X1C6.

Old message, this one is. However, in the light of the X1C7 and its optional WWAN module Fibocom L860-GL under Linux, I am going through this old thread. See also: https://forums.lenovo.com/t5/ThinkPad-X-Series-Laptops/ThinkPad-X1-Carbon-7th-Gen-X1C7-first-look/m-...

 

My X1C2 has the following card:

Bus 002 Device 018: ID 1199:a001 Sierra Wireless, Inc.

And I wonder if it'll work in C7, same as it reportedly does in C6.

Remote Sensing & Geomatics
GPG Key Fingerprint 6F9D4506F3CA28380974D31A9053534B693C4FB3
dbao
Punch Card
Posts: 57
Registered: ‎11-07-2009
Location: US
Views: 194
Message 62 of 64

Re: X1C gen 6 - Fibocom L850-GL - Ubuntu 18.04


@NikosAlexandris

 

My X1C2 has the following card:

Bus 002 Device 018: ID 1199:a001 Sierra Wireless, Inc.

And I wonder if it'll work in C7, same as it reportedly does in C6.


Fibocom L850-GL has both PCIe and USB interface. Intel provided PCIe-USB bridge driver for Windows but no such for Linux. Lenovo blocks L850 USB interface on BIOS. So L850 will not work under Linux.

 

L860 is a PCIe only device (4 antennas total, last one before 5G, 5G Fibocom F300 has 6 antennas). Right now there is no Linux driver. 

 

None of Sierra Wireless card will work on x1c7, x1y3, x1y4. It can work on X1c6 with some hack (see previous discussion).

 

 

Highlighted
NikosAlexandris
SCSI Port
Posts: 55
Registered: ‎04-28-2014
Location: CH
Views: 161
Message 63 of 64

Re: X1C gen 6 - Fibocom L850-GL - Ubuntu 18.04


@dbao wrote:

@NikosAlexandris

 

My X1C2 has the following card:

Bus 002 Device 018: ID 1199:a001 Sierra Wireless, Inc.

And I wonder if it'll work in C7, same as it reportedly does in C6.


Fibocom L850-GL has both PCIe and USB interface. Intel provided PCIe-USB bridge driver for Windows but no such for Linux. Lenovo blocks L850 USB interface on BIOS. So L850 will not work under Linux.

 

L860 is a PCIe only device (4 antennas total, last one before 5G, 5G Fibocom F300 has 6 antennas). Right now there is no Linux driver. 

 

None of Sierra Wireless card will work on x1c7, x1y3, x1y4. It can work on X1c6 with some hack (see previous discussion).

 

 


Thank you @dbao.

 

(How much does it _cost_ to @Lenovo to provide a WWAN module/driver/you-name-it supported under Linux?

Is it about "cost"? Is it about "time"? Is it about "politics"? Is it about "indifference"?)

Remote Sensing & Geomatics
GPG Key Fingerprint 6F9D4506F3CA28380974D31A9053534B693C4FB3
intelfx
SCSI Port
Posts: 28
Registered: ‎09-15-2016
Location: RU
Views: 115
Message 64 of 64

Re: X1C gen 6 - Fibocom L850-GL - Ubuntu 18.04


@NikosAlexandris wrote:

(How much does it _cost_ to @Lenovo to provide a WWAN module/driver/you-name-it supported under Linux?

Is it about "cost"? Is it about "time"? Is it about "politics"? Is it about "indifference"?)


Likely a bit of everything — race to market, paired with cutting down on the costs, paired with politically driven indifference.

Check out current deals!


Shop current deals

Top Kudoed Authors