[Desktop-packages] [Bug 1169117] Re: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.)
Having the similar issue with Ericsson H5321gw in Toshiba Z830. SIM registers to network, but than fails to connect most of the tries(like 1success to 30 failures). I tried the solution in 2), after reboot I connected from the first try, but after that I have not be able to get connection. I see the driver used in my case is cdc_acm - cna this be the reason? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to modemmanager in Ubuntu. https://bugs.launchpad.net/bugs/1169117 Title: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.) Status in The Linux Kernel: Fix Released Status in “linux” package in Ubuntu: Confirmed Status in “modemmanager” package in Ubuntu: Invalid Status in “linux” package in Debian: Fix Committed Bug description: "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices") introduced a new policy, preferring MBIM for dual NCM/MBIM functions if the cdc_mbim driver was enabled. This caused a regression for users wanting to use NCM." This could be solved in different ways: 1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX- YY. Easy, but makes it harder for people to experiment with MBIM and add userspace support 2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module. This could be done by adding a file "/etc/modprobe.d/avoid- mbim.conf" with content: options cdc_ncm prefer_mbim=N This will allow people wanting to test MBIM easy access by removing or editing the file. Then the question is if this file should stay in modemmanager package or maybe in the kernel package? The required code for this option to exist seems to be in Ubuntu Raring packages in commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1. 3) Debian has solved it by patching the kernel to reverse the default to be not to use MBIM: http://web.archiveorange.com/archive/v/dbmrrKybrWTJ0XZGsB3B http://lists.debian.org/debian-kernel/2013/03/msg00611.html See also bug #1102343. To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1169117/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1169117] Re: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.)
Also the modem itself is recognized as Toshiba, not Ericsson: [code] Sep 21 15:31:49 toshiba kernel: [ 7078.450687] usb 1-1.6: new high-speed USB device number 7 using ehci_hcd Sep 21 15:31:49 toshiba kernel: [ 7078.545002] usb 1-1.6: New USB device found, idVendor=0930, idProduct=1319 Sep 21 15:31:49 toshiba kernel: [ 7078.545013] usb 1-1.6: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Sep 21 15:31:49 toshiba kernel: [ 7078.545019] usb 1-1.6: Product: H5321gw Sep 21 15:31:49 toshiba kernel: [ 7078.545024] usb 1-1.6: Manufacturer: TOSHIBA Sep 21 15:31:49 toshiba kernel: [ 7078.545029] usb 1-1.6: SerialNumber: 24359BF58A1F4870 Sep 21 15:31:49 toshiba mtp-probe: checking bus 1, device 7: "/sys/devices/pci:00/:00:1a.0/usb1/1-1/1-1.6" Sep 21 15:31:49 toshiba kernel: [ 7078.578410] cdc_acm 1-1.6:1.1: ttyACM0: USB ACM device Sep 21 15:31:49 toshiba kernel: [ 7078.582138] cdc_acm 1-1.6:1.3: ttyACM1: USB ACM device Sep 21 15:31:49 toshiba kernel: [ 7078.590550] cdc_wdm 1-1.6:1.5: cdc-wdm0: USB WDM device Sep 21 15:31:49 toshiba kernel: [ 7078.605591] usb 1-1.6: MAC-Address: 02:15:e0:ec:01:00 Sep 21 15:31:49 toshiba kernel: [ 7078.606071] cdc_ncm 1-1.6:1.6: usb0: register 'cdc_ncm' at usb-:00:1a.0-1.6, CDC NCM, 02:15:e0:ec:01:00 Sep 21 15:31:49 toshiba kernel: [ 7078.607135] cdc_wdm 1-1.6:1.8: cdc-wdm1: USB WDM device Sep 21 15:31:49 toshiba kernel: [ 7078.607728] cdc_acm 1-1.6:1.9: ttyACM2: USB ACM device Sep 21 15:31:49 toshiba mtp-probe: bus: 1, device: 7 was not an MTP device [/code] It is really wird why the modem connects occasionally, but most of the times doesn't. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to modemmanager in Ubuntu. https://bugs.launchpad.net/bugs/1169117 Title: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.) Status in The Linux Kernel: Fix Released Status in “linux” package in Ubuntu: Confirmed Status in “modemmanager” package in Ubuntu: Invalid Status in “linux” package in Debian: Fix Committed Bug description: "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices") introduced a new policy, preferring MBIM for dual NCM/MBIM functions if the cdc_mbim driver was enabled. This caused a regression for users wanting to use NCM." This could be solved in different ways: 1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX- YY. Easy, but makes it harder for people to experiment with MBIM and add userspace support 2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module. This could be done by adding a file "/etc/modprobe.d/avoid- mbim.conf" with content: options cdc_ncm prefer_mbim=N This will allow people wanting to test MBIM easy access by removing or editing the file. Then the question is if this file should stay in modemmanager package or maybe in the kernel package? The required code for this option to exist seems to be in Ubuntu Raring packages in commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1. 3) Debian has solved it by patching the kernel to reverse the default to be not to use MBIM: http://web.archiveorange.com/archive/v/dbmrrKybrWTJ0XZGsB3B http://lists.debian.org/debian-kernel/2013/03/msg00611.html See also bug #1102343. To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1169117/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1169117] Re: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.)
** Description changed: "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices") introduced a new policy, preferring MBIM for dual NCM/MBIM functions if the cdc_mbim driver was enabled. This caused a regression for users wanting to use NCM." This could be solved in different ways: 1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX- YY. Easy, but makes it harder for people to experiment with MBIM and add userspace support 2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module. This could be done by adding a file "/etc/modprobe.d/avoid-mbim.conf" with content: options cdc_ncm prefer_mbim=N This will allow people wanting to test MBIM easy access by removing or editing the file. Then the question is if this file should stay in modemmanager package or maybe in the kernel package? The required code for this option to exist seems to be in Ubuntu Raring packages in commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1. 3) Debian has solved it by patching the kernel to reverse the default to be not to use MBIM: http://web.archiveorange.com/archive/v/dbmrrKybrWTJ0XZGsB3B http://lists.debian.org/debian-kernel/2013/03/msg00611.html See also bug #1102343. + + WORKAROUND: Add in /etc/modprobe.d/cdc_ncm.conf : + options cdc_ncm prefer_mbim=N -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to modemmanager in Ubuntu. https://bugs.launchpad.net/bugs/1169117 Title: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.) Status in The Linux Kernel: Fix Released Status in “linux” package in Ubuntu: Confirmed Status in “modemmanager” package in Ubuntu: Invalid Status in “linux” package in Debian: Fix Committed Bug description: "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices") introduced a new policy, preferring MBIM for dual NCM/MBIM functions if the cdc_mbim driver was enabled. This caused a regression for users wanting to use NCM." This could be solved in different ways: 1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX- YY. Easy, but makes it harder for people to experiment with MBIM and add userspace support 2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module. This could be done by adding a file "/etc/modprobe.d/avoid- mbim.conf" with content: options cdc_ncm prefer_mbim=N This will allow people wanting to test MBIM easy access by removing or editing the file. Then the question is if this file should stay in modemmanager package or maybe in the kernel package? The required code for this option to exist seems to be in Ubuntu Raring packages in commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1. 3) Debian has solved it by patching the kernel to reverse the default to be not to use MBIM: http://web.archiveorange.com/archive/v/dbmrrKybrWTJ0XZGsB3B http://lists.debian.org/debian-kernel/2013/03/msg00611.html See also bug #1102343. WORKAROUND: Add in /etc/modprobe.d/cdc_ncm.conf : options cdc_ncm prefer_mbim=N To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1169117/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1169117] Re: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.)
Marius B. Kotsbak, at this point I'm not seeing anything wrong with syncing with Debian on this, despite the WORKAROUND. -> Triaged ** Description changed: "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices") introduced a new policy, preferring MBIM for dual NCM/MBIM functions if the cdc_mbim driver was enabled. This caused a regression for users wanting to use NCM." + For background on this change please see Bug #1102343. + This could be solved in different ways: + 1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX-YY. Easy, but makes it harder for people to experiment with MBIM and add userspace support - 1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX- - YY. Easy, but makes it harder for people to experiment with MBIM and add - userspace support - - 2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module. - This could be done by adding a file "/etc/modprobe.d/avoid-mbim.conf" - with content: - + 2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module. This could be done by adding a file "/etc/modprobe.d/avoid-mbim.conf" with content: options cdc_ncm prefer_mbim=N This will allow people wanting to test MBIM easy access by removing or editing the file. Then the question is if this file should stay in - modemmanager package or maybe in the kernel package? + modemmanager package or maybe in the kernel package? The required code + for this option to exist seems to be in Ubuntu Raring packages in commit + 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1. - The required code for this option to exist seems to be in Ubuntu Raring - packages in commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1. - - 3) Debian has solved it by patching the kernel to reverse the default to - be not to use MBIM: - - http://web.archiveorange.com/archive/v/dbmrrKybrWTJ0XZGsB3B + 3) Debian has solved it by patching the kernel to reverse the default to be not to use MBIM: + http://lists.alioth.debian.org/pipermail/kernel-svn-changes/2013-March/018852.html http://lists.debian.org/debian-kernel/2013/03/msg00611.html - - See also bug #1102343. WORKAROUND: Add in /etc/modprobe.d/cdc_ncm.conf : options cdc_ncm prefer_mbim=N ** Changed in: linux (Ubuntu) Importance: High => Low ** Changed in: linux (Ubuntu) Status: Confirmed => Triaged ** Changed in: linux (Ubuntu) Milestone: ubuntu-13.04 => ubuntu-14.04-feature-freeze -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to modemmanager in Ubuntu. https://bugs.launchpad.net/bugs/1169117 Title: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.) Status in The Linux Kernel: Fix Released Status in “linux” package in Ubuntu: Triaged Status in “modemmanager” package in Ubuntu: Invalid Status in “linux” package in Debian: Invalid Bug description: "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices") introduced a new policy, preferring MBIM for dual NCM/MBIM functions if the cdc_mbim driver was enabled. This caused a regression for users wanting to use NCM." For background on this change please see Bug #1102343. This could be solved in different ways: 1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX-YY. Easy, but makes it harder for people to experiment with MBIM and add userspace support 2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module. This could be done by adding a file "/etc/modprobe.d/avoid-mbim.conf" with content: options cdc_ncm prefer_mbim=N This will allow people wanting to test MBIM easy access by removing or editing the file. Then the question is if this file should stay in modemmanager package or maybe in the kernel package? The required code for this option to exist seems to be in Ubuntu Raring packages in commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1. 3) Debian has solved it by patching the kernel to reverse the default to be not to use MBIM: http://lists.alioth.debian.org/pipermail/kernel-svn-changes/2013-March/018852.html http://lists.debian.org/debian-kernel/2013/03/msg00611.html WORKAROUND: Add in /etc/modprobe.d/cdc_ncm.conf : options cdc_ncm prefer_mbim=N To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1169117/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1169117] Re: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.)
Closing the linux (Debian) task given it's already resolved for them. ** Changed in: linux (Debian) Status: Fix Committed => Invalid -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to modemmanager in Ubuntu. https://bugs.launchpad.net/bugs/1169117 Title: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.) Status in The Linux Kernel: Fix Released Status in “linux” package in Ubuntu: Triaged Status in “modemmanager” package in Ubuntu: Invalid Status in “linux” package in Debian: Invalid Bug description: "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices") introduced a new policy, preferring MBIM for dual NCM/MBIM functions if the cdc_mbim driver was enabled. This caused a regression for users wanting to use NCM." For background on this change please see Bug #1102343. This could be solved in different ways: 1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX-YY. Easy, but makes it harder for people to experiment with MBIM and add userspace support 2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module. This could be done by adding a file "/etc/modprobe.d/avoid-mbim.conf" with content: options cdc_ncm prefer_mbim=N This will allow people wanting to test MBIM easy access by removing or editing the file. Then the question is if this file should stay in modemmanager package or maybe in the kernel package? The required code for this option to exist seems to be in Ubuntu Raring packages in commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1. 3) Debian has solved it by patching the kernel to reverse the default to be not to use MBIM: http://lists.alioth.debian.org/pipermail/kernel-svn-changes/2013-March/018852.html http://lists.debian.org/debian-kernel/2013/03/msg00611.html WORKAROUND: Add in /etc/modprobe.d/cdc_ncm.conf : options cdc_ncm prefer_mbim=N To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1169117/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1169117] Re: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.)
At this time, I think it is better to introduce MBIM support in Ubuntu as the support in Modemmanager is already there. See bug #1102343 and #1123302. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to modemmanager in Ubuntu. https://bugs.launchpad.net/bugs/1169117 Title: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.) Status in The Linux Kernel: Fix Released Status in “linux” package in Ubuntu: Triaged Status in “modemmanager” package in Ubuntu: Invalid Status in “linux” package in Debian: Invalid Bug description: "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices") introduced a new policy, preferring MBIM for dual NCM/MBIM functions if the cdc_mbim driver was enabled. This caused a regression for users wanting to use NCM." For background on this change please see Bug #1102343. This could be solved in different ways: 1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX-YY. Easy, but makes it harder for people to experiment with MBIM and add userspace support 2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module. This could be done by adding a file "/etc/modprobe.d/avoid-mbim.conf" with content: options cdc_ncm prefer_mbim=N This will allow people wanting to test MBIM easy access by removing or editing the file. Then the question is if this file should stay in modemmanager package or maybe in the kernel package? The required code for this option to exist seems to be in Ubuntu Raring packages in commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1. 3) Debian has solved it by patching the kernel to reverse the default to be not to use MBIM: http://lists.alioth.debian.org/pipermail/kernel-svn-changes/2013-March/018852.html http://lists.debian.org/debian-kernel/2013/03/msg00611.html WORKAROUND: Add in /etc/modprobe.d/cdc_ncm.conf : options cdc_ncm prefer_mbim=N To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1169117/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1169117] Re: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.)
Maybe this should be set to WONTFIX and possibly just fix it for older versions (12.04 LTS). -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to modemmanager in Ubuntu. https://bugs.launchpad.net/bugs/1169117 Title: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.) Status in The Linux Kernel: Fix Released Status in “linux” package in Ubuntu: Triaged Status in “modemmanager” package in Ubuntu: Invalid Status in “linux” package in Debian: Invalid Bug description: "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices") introduced a new policy, preferring MBIM for dual NCM/MBIM functions if the cdc_mbim driver was enabled. This caused a regression for users wanting to use NCM." For background on this change please see Bug #1102343. This could be solved in different ways: 1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX-YY. Easy, but makes it harder for people to experiment with MBIM and add userspace support 2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module. This could be done by adding a file "/etc/modprobe.d/avoid-mbim.conf" with content: options cdc_ncm prefer_mbim=N This will allow people wanting to test MBIM easy access by removing or editing the file. Then the question is if this file should stay in modemmanager package or maybe in the kernel package? The required code for this option to exist seems to be in Ubuntu Raring packages in commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1. 3) Debian has solved it by patching the kernel to reverse the default to be not to use MBIM: http://lists.alioth.debian.org/pipermail/kernel-svn-changes/2013-March/018852.html http://lists.debian.org/debian-kernel/2013/03/msg00611.html WORKAROUND: Add in /etc/modprobe.d/cdc_ncm.conf : options cdc_ncm prefer_mbim=N To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1169117/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1169117] Re: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.)
Will modemmanager 0.7.991 make it into Saucy? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to modemmanager in Ubuntu. https://bugs.launchpad.net/bugs/1169117 Title: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.) Status in The Linux Kernel: Fix Released Status in “linux” package in Ubuntu: Confirmed Status in “modemmanager” package in Ubuntu: Invalid Status in “linux” package in Debian: Fix Committed Bug description: "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices") introduced a new policy, preferring MBIM for dual NCM/MBIM functions if the cdc_mbim driver was enabled. This caused a regression for users wanting to use NCM." This could be solved in different ways: 1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX- YY. Easy, but makes it harder for people to experiment with MBIM and add userspace support 2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module. This could be done by adding a file "/etc/modprobe.d/avoid- mbim.conf" with content: options cdc_ncm prefer_mbim=N This will allow people wanting to test MBIM easy access by removing or editing the file. Then the question is if this file should stay in modemmanager package or maybe in the kernel package? The required code for this option to exist seems to be in Ubuntu Raring packages in commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1. 3) Debian has solved it by patching the kernel to reverse the default to be not to use MBIM: http://web.archiveorange.com/archive/v/dbmrrKybrWTJ0XZGsB3B http://lists.debian.org/debian-kernel/2013/03/msg00611.html See also bug #1102343. To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1169117/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1169117] Re: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.)
Probably, but it will not solve this bug. See bug #1102343. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to modemmanager in Ubuntu. https://bugs.launchpad.net/bugs/1169117 Title: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.) Status in The Linux Kernel: Fix Released Status in “linux” package in Ubuntu: Confirmed Status in “modemmanager” package in Ubuntu: Invalid Status in “linux” package in Debian: Fix Committed Bug description: "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices") introduced a new policy, preferring MBIM for dual NCM/MBIM functions if the cdc_mbim driver was enabled. This caused a regression for users wanting to use NCM." This could be solved in different ways: 1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX- YY. Easy, but makes it harder for people to experiment with MBIM and add userspace support 2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module. This could be done by adding a file "/etc/modprobe.d/avoid- mbim.conf" with content: options cdc_ncm prefer_mbim=N This will allow people wanting to test MBIM easy access by removing or editing the file. Then the question is if this file should stay in modemmanager package or maybe in the kernel package? The required code for this option to exist seems to be in Ubuntu Raring packages in commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1. 3) Debian has solved it by patching the kernel to reverse the default to be not to use MBIM: http://web.archiveorange.com/archive/v/dbmrrKybrWTJ0XZGsB3B http://lists.debian.org/debian-kernel/2013/03/msg00611.html See also bug #1102343. To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1169117/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp