On Monday September 22, 2003 "Barry L. Kline" <blkline@xxxxxxxxxxxxx> wrote: > I recently purchased an IBM ThinkPad R40 laptop to replace my old > workhorse, a TP 770. > > Although the thing is extremely fast, I have an irritating problem with > it that I haven't figured out how to fix. The thing will occasionally > lock up -- no three finger salute, no response to pings from another > machine, nothing. My only option is to hold down the power button > until the machine turns itself off. I've tried to take note to what > I'm doing when it locks... frequently I'm in either Mozilla (which > typically causes the problem if I fill in a form and press "Enter") or > resizing a window when the problem occurs. Sometimes it may be as > simple as going from one workspace to another. In any event, my best > "uptime" is 2 days on this beastie. My 770 has given me uptimes of > months (I simply suspend to disk instead of shutting down) > > The machine has a Pent IV Mobile @ ~2Ghz, 512M of RAM, 40 Gb HD, ATI > Radeon graphics. The X video driver that I'm using is: > > BoardName "ATI Radeon Mobility 7500" > > Various searches through groups.Google.com have yielded some things to > try (which I have), among them: > > booting with "noapic" as a kernel parameter > booting with "apic=on pci=noapic" as a kernel parameter > > Neither has been helpful. > > I've tried turning on/off various power management options, again > without relief. > > I've upgraded the BIOS and other embedded software, no help. > > Is there anyone out there using this machine with RH9 whose machine > doesn't exhibit this behaviour? Can anyone offer any other > suggestions? Barry, I doubt that any apic parameter will affect your R40. I'm running Severn on an A22p Thinkpad with a 1G PIII/M, 512M, two hard drives (32G and 80G), and an ATI Rage Mobility 128. The video is set for a 1600x1200 generic LCD in millions of colors. Its behavior in this respect is exactly the same under Severn as it was under 7.3/8.0/9. Once in a while I'll wake up to find my XMatrix screen saver frozen. As you say, the only way to regain control is to press the power switch and hold. I don't know why it happens. There has often been bad weather overnight, but this shouldn't be a factor for a battery-driven laptop in a docking station powered by a 1000 VA UPS. I probably should double-check to see if everything (Etherswitch, gateway router, external modem, KVM, monitor) is powered by that same UPS. Total isolation *should* eliminate flakey power as a villain. One thing I did eliminate as a cause was my cat strolling across the ThinkPad's keyboard during the night. I didn't actually eliminate my cat -- I just disabled APCI in the BIOS and closed the lid after switching to external monitor mode (double-tap Fn-F7) and using a Logitech Cordless Desktop keyboard & mouse. This may not help much, but you can take some comfort in knowing you're not the only one seeing this problem. If this is a Red Hat issue, it's probably a very obscure one. --Doc Savage Fairview Heights, IL -- Shrike-list mailing list Shrike-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/shrike-list
