Arch Linux

arty_ayreon

Member

Registered: 2010-02-19

Posts: 14

Missing ttyUSB0 and cant hibernate after system update

Hi! I'm using usb modem huawai. Before my yesterday's update everything was fine, but after it ttyUSB0 had gone missing. E.g. it (ttyUSB0) doesn't appear when i plug in my usb modem any more. Also gnome's hibernate utility doesn't work anymore. When I stop working and press System -> Shut Down -> Hibernate it looks like it suspends to my swap disk, but it doesn't resume when i start over it works like if i rebooted.

I suppose these two issues r connected and their cause is system update. Any ideas?

csstaub

Member

From: Switzerland

Registered: 2009-02-09

Posts: 37

Re: Missing ttyUSB0 and cant hibernate after system update

In order for your modem to show up as ttyUSB0 you need to have the usbserial module loaded as well as the driver for your modem. I don't know which driver your modem would need, but with lsmod you can look ad the list of currently loaded modules. Also, what packages did you update yesterday?

arty_ayreon

Member

Registered: 2010-02-19

Posts: 14

Re: Missing ttyUSB0 and cant hibernate after system update

usbserial is loaded. lsusb shows:

Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 002: ID 09da:000a A4 Tech Co., Ltd Port Mouse
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 005: ID 12d1:1446 Huawei Technologies Co., Ltd.
Bus 002 Device 002: ID 064e:c107 Suyin Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

and i made

>pacman - Suu

pyther

Member

Registered: 2008-01-21

Posts: 1,395

Website

Re: Missing ttyUSB0 and cant hibernate after system update

Add the "resume" hook to the end of the HOOKS list in
/etc/mkinitcpio.conf and rebuild your initramfs. This has to be added
manually now with the non-klibc mkinitcpio.

As for you modem issue, sounds like module isn't loading

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arty_ayreon

Member

Registered: 2010-02-19

Posts: 14

Re: Missing ttyUSB0 and cant hibernate after system update

Just noticed that usbserial module is really absent by the time system is loaded do

>modprobe visor

to load it but ttyUSB(s) dont appear.

Still searching for solution. Thanx every1 4 help.

Will try rebuilding initframes later need to finish with linux for today... Thanx all once again!

arty_ayreon

Member

Registered: 2010-02-19

Posts: 14

Re: Missing ttyUSB0 and cant hibernate after system update

Well, rebuilding initramfs with resume script added to hooks helped to make work my hibernate. Still nothing with my modem. I load usbserial module with correct params manually (modprobe usbserial vendor=0x1446 product=0x12d1) but it doesnt help me either. Looked through all wiki pages on 3g and huawei modem topics - nothing helped.

plz provide me with some ideas if possible