Bug Report
Robert Locke
lists at ralii.com
Wed May 4 02:09:24 UTC 2005
On Tue, 2005-05-03 at 18:53 -0600, Lloyd Hayes wrote:
> Bug Report:
>
> I don't know how extensive this bug is. I use my laptop with FC3 while
> traveling across the USA in my 18-Wheeler. I get my loads over the
> Internet. The 110 volt power is supplied by an inverter attached to my
> batteries. APC battery backup power supplies don't work well in this
> environment. (Last time that I tried one, which was about 7 years ago,
> it caught fire a couple of weeks after I bought it.)
>
> When the batteries get low, the inverter simply shuts off. This does not
> affect the laptop. But when I have external hard drives, printers,
> scanners, and external CD ROMS hooked into the laptop, they simply shut
> down and fall off of the devices with again no problem to the laptop.
>
> The problem is when I start up the motor to get power going again, then
> I reset the power inverter. I have an in-line switch which is shut off
> until the inverter is back on. When the power back on, I turn the switch
> on and the devices are also suddenly turned back on.
>
> FC3 freezes up every time the devices are turned back on. It can be
> just the printer or the external hard drive. The result is the same. I
> have been known to let it sit there for a couple of hours to see if
> something happens. Nothing does. The mouse pointer, and everything on
> the Gnome screen stays frozen. CTRL+DEL+ALT does nothing. Same with
> CTRL+ATL+BACK SPACE. The only way out of it is the power button for 6
> seconds. This is completely repeatable and happens every time.
>
> It does not happen if no external devices are connected to the laptop.
>
I'll make a few assumptions... Are you running the latest kernel?
2.6.11-1.14_FC3 is it. Well, apparently the new kernel may have
introduced some issues into USB - see bug #154690 as an example. Though
admittedly it is somewhat in reverse of what you are experiencing, it
might be related. According to one report, there is a new kernel in
updates-testing (2.6.11-1.20_FC3), that helped the original reporter of
that bug. The other solution that I have been using is to simply revert
back one kernel when I plan to play with USB devices to
2.6.10-1.770_FC3....
HTH,
--Rob
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