On Thu, 26 Jan 2006 10:56:54 -0000 (UTC) "David Bottrill"
Carlos E. R. said:
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The Thursday 2006-01-12 at 10:17 +0100, Johannes Meixner wrote:
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For example my Epson Perfection 2480 works o.k. with Suse Linux 10.0 > using the epkowa backend.
"Works o.k." means that it works except some USB problems which happen from time to time: For unknown reason (there is no USB error message in dmesg) it happens from time to time that USB communication is no longer possible. Sometimes it works again by unknown magic after waiting a bit. Sometimes it works again after re-loading USB kernel modules. Always it works again after re-booting the system.
Sounds familiar...
See if this rings a bell. Instead of halting/booting my system every day, I prefer to suspend it to disk. Sometimes it happens, perhaps after a month without problems, that one day the scanner (epson 1650 via usb) is no longer there. I can not list it with lsusb. Gone. The only solution seems to be to reboot - down the flush goes my uptime! ;-)
This is with SuSE 9.3. Time ago, there was "rchotplug restart" that would force the usb bus to work again, but the script has disappeared. I tried reloading usb kernel modules, but it did not work; perhaps I did it wrong.
I'm using 9.3 and there's no rchotplug on my system. Okay... you mean that it was part of some Suse prior to 9.3...
It seems the usb init script is now inside "/etc/init.d/kbd". I will try the method there next time it happens.
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Looking at that script, there's comments which say: # [bugzilla #46113] # we come here although heading for runlevel 5. # I'll comment out diabling hotplug for now. jw. # test -f /proc/sys/kernel/hotplug && echo /bin/true > \ /proc/sys/kernel/hotplug 2>/dev/null (note wrap crap) I just found this, so haven't had a hard look at this code or at bug #46113. Seems curious though. -- "This world ain't big enough for the both of us," said the big noema to the little noema.