On Fri, 21 Jan 2005 19:41:48 -0700, Tyler Larson <fedora-devel@xxxxxxxxxxx> wrote: > I ran into a problem (bug?) that I would like to help solve, but I'm at > a loss as to where to go next. My laptop (Dell C400) used to run Linux > just fine, dual boot with Windows. In the past few months, I've > installed XP SP2 on the Windows side, reinstalled Windows a few times > (it happens), and updated by BIOS image. I somehow managed to trash my > partition table attempting to put GRUB back as my bootloader, then had > to reinstall everything all over again (windows and Linux). I've since > downgraded the BIOS to the previous known-good version to try and fix > the thing. Windows works fine, but on the Linux side.... > > The computer powers itself off without warning--no matter what is, or > isn't, running. Certain things seem to trigger it, and it may be tied to > high CPU load. I can trigger the shutdown fairly reliably by running > aircrack on a packet capture file. To rule out any background services > as being the culprit, I booted with init=/bin/bash, ran aircrack, and > sure enough, it powered off after about 90 seconds. This behavior has > continued no matter what kernel I use--I'ved tried with both the > original FC3 kernel and the most recent one. In fact, the machine > powered itself down a number of times while I was running off the > install CD. It took 10 tries before I got it to complete the install > process. > > So, my question to you all is--how can I possibly get some useful > information to start diagnosing this problem? There's nothing in the > logs on disk, of course. There's no warning, no panic, no nothing. Just > a quick *plink* and it's gone. > If I were you I'd send this to the users list - it seems better served there. I would try booting without acpi or apm, try to make things as stripped-down as possible (noacpi noapm). And you might want to check your BIOS settings to make sure the flashing didn't change settings, maybe some power-related stuff. > -- > fedora-devel-list mailing list > fedora-devel-list@xxxxxxxxxx > http://www.redhat.com/mailman/listinfo/fedora-devel-list > -- Nick Bargnesi http://www.den-4.com Den 4 Software pub 1024D/E8BD2FD0 2004-12-02 Nick Bargnesi <nbargnesi@xxxxxxxxx> Key fingerprint = 6F9D 9404 63CD 2B04 DE7A 0F9D A1ED C1B0 E8BD 2FD0 sub 2048g/56C5D45B 2004-12-02 dd if=/dev/zero of=/dev/hda