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Linux - Networking This forum is for any issue related to networks or networking.
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Old 06-16-2006, 06:34 AM   #1
Registered: Jan 2006
Distribution: Gentoo
Posts: 498

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Question modem usability problems after starting from "suspend to RAM"


I have a problem with my modem. When I start the system it works perfectly. BUT: after I suspend my computer to RAM, and wake it up, and try to connect, kppp sais, that there is NO CARRIER. What's wrong? Thanks.
Old 06-17-2006, 02:54 AM   #2
Registered: Apr 2005
Location: Jordan
Distribution: Debian (Sarge), Ubuntu (6.06)
Posts: 271

Rep: Reputation: 31
Not completely sure of this issue. However, suspend to RAM is still a little *unpredictable* at best. It relies heavily on your specific hardware/manufacturer and how well supported it is in linux.

A good work-around which worked for my toshiba laptop was to unload the kernel modules for the devices that cause problems when going to suspend and then reload them when the machine wakes up.

Perhaps this will wokr for you too

The jist of it is that you'll need to find out the module(s) used by your modem then write a little script that executes when the machine goes to suspend. This script will unload the modules, and later (when the machine wakes up) re-load them.

Google is your friend


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