FS#45454 - [systemd] USB Modem not recognized after upgrading to 221

Attached to Project: Arch Linux
Opened by Rajat Kanti Sarkar (rasr11) - Wednesday, 24 June 2015, 16:51 GMT
Last edited by Evangelos Foutras (foutrelis) - Wednesday, 01 July 2015, 03:16 GMT
Task Type Bug Report
Category Packages: Core
Status Closed
Assigned To Thomas Bächler (brain0)
Evangelos Foutras (foutrelis)
Dave Reisner (falconindy)
Architecture x86_64
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:
After recent upgrades of the system, systemd and libsystemd to 221-1 version , USB modem stopped working and failed to be recognized by the system.

Additional info:

Forcefully removing libgudev and downgrading systemd and libsystemd to 219-6 version fixes the issue.

Steps to reproduce:

Update the system by pacman -Syu
This task depends upon

Closed by  Evangelos Foutras (foutrelis)
Wednesday, 01 July 2015, 03:16 GMT
Reason for closing:  Fixed
Additional comments about closing:  usb_modeswitch 2.2.3-1
Comment by Evangelos Foutras (foutrelis) - Wednesday, 24 June 2015, 17:22 GMT
Does removing /usr/lib/udev/rules.d/42-usb-hid-pm.rules and rebooting fix the issue?
Comment by Rajat Kanti Sarkar (rasr11) - Wednesday, 24 June 2015, 17:32 GMT
No, the problem persists. I use the usb modem as storage device. Nothing shows up in File Manager or in "lsblk -f"
Comment by Doug Newgard (Scimmia) - Wednesday, 24 June 2015, 21:32 GMT
does it show up in lsusb? I'm wondering if you just need https://www.archlinux.org/packages/?name=usb_modeswitch
Comment by Rajat Kanti Sarkar (rasr11) - Thursday, 25 June 2015, 00:42 GMT
1.Yes, it shows up in the lsusb. Following is the output for corresponding lsusb
"Bus 001 Device 005: ID 1c9e:f000 OMEGA TECHNOLOGY"
2. usb_modeswitch is already present in the system.
3. As I mentioned in the bug report, if I remove libgudev and downgrade systemd, libsystemd, it shows up in file manager.
Comment by Doug Newgard (Scimmia) - Friday, 26 June 2015, 03:15 GMT
After a bit of looking, it appears that is the correct ID for USB drive mode.
Comment by Rajat Kanti Sarkar (rasr11) - Friday, 26 June 2015, 14:55 GMT
But drive doesn't appear in file manager or in terminal output for lsblk -f
Comment by Evangelos Foutras (foutrelis) - Tuesday, 30 June 2015, 10:08 GMT
Possibly related: https://github.com/systemd/systemd/issues/400
Comment by Evangelos Foutras (foutrelis) - Tuesday, 30 June 2015, 10:20 GMT
Please check if upgrading to usb_modeswitch 2.2.3-1 fixes the issue.
Comment by Rajat Kanti Sarkar (rasr11) - Wednesday, 01 July 2015, 03:13 GMT
Yes, upgrading usb_modewitch fixes the issue. Thank you for helping.

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