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T60 Gutsy: jerky cursor, slowdown, ipw3945 Microcode SW erro

Posted: Fri Mar 21, 2008 10:43 am
by John H
My Trusty Gutsy Thinkpad T60 suddenly has jumpy/jerky cursor syndrome and has slowed down to a crawl. And I've restarted it many times. I think it's the flash-nonfree I installed last week (I've often had trouble with flash and usually don't run it). But now the T60 is unusable.

Anyone else have this problem?

When I move the stick the cursor moves an inch and pauses for a couple seconds before it'll move again.

The computer has slowed down to a crawl.

Oh yeah, the wireless stopped working, too.

Is there a way to backoff the Synaptic updates until I get back to a working system?

Should I try replacing Gutsy with a Heron? Alpha-4? Alpha-6?

When I try to use the HDD dual-boot to get to "ubuntu (recovery mode)" from the bootlist I get endless repitition of these error msgs:

nnn.nnnnnn ipw3945:Microcode SW error detected. Restarting.
nnn.nnnnnn ipw3945:Error reply type 0x0000005 cmd ADD_STA (0x1 seq 0x0407 ser 0x004A0000
nnn.nnnnnn ipw3945: Can't stop Rx DMA.

the 'nnn.nnnnn' is a bunch if increasing numbers.

Also,I can't boot from a CD.

Posted: Sun Mar 23, 2008 11:35 pm
by lightweight
I have seen that error with old ipw firmware/drivers. Two options: upgrade to iwlwifi (surely there are instructions for Ubuntu, and this has replaced ipw3945 anyway) or use a 2.6.24 kernel (which may be in Ubuntu backports for your release; otherwise, I believe I read here that Ubuntu's alpha uses 2.6.24 if you don't want to just install it from Debian debs or compile).

Probably want another thread on your boot from CD problem.

Posted: Mon Mar 24, 2008 1:58 pm
by tarvoke
I got the very same SW / DMA error recently multiple times, the only thing I can think of is that I was at a friend's house who uses wpa(/2?) rather than the wep ap I normally use where I live.

have been using hardy kernel w/ gutsy system (and now purely hardy beta system) for weeks now, so I would have to place the blame on the iwl3945 module. surprising that this issue also shows up in ipw3945 -- I had other issues in ipw but not this...

Posted: Mon Mar 24, 2008 3:27 pm
by whizkid
I've had great luck running Fedora on my T60, so it's probably a configuration issue on your machine.

What diagnostic tools have you tried?

Posted: Mon Mar 24, 2008 3:49 pm
by tarvoke
also, many things can be blamed on flash*, ugh.

you could try:

Code: Select all

sudo apt-get remove flashplugin-nonfree
and see if that makes any improvement.

not sure I can recommend upgrading to 8.04 at this point (it's ... interesting) but you could try using the 2.6.24 kernel in gutsy, I have had great success doing that for the last few months:
http://ubuntuforums.org/showthread.php?t=646755

*I hate flash so much...

Posted: Fri Apr 04, 2008 7:54 am
by John H
My new miniPCI Express 3945 arrived today so I turned on the T60 (after 2 weeks of not using it) and it came up just fine (well, the CD didn't work...).

Anyway, I'm using it right now and I haven't replaced the 3945 yet. So I probably won't until/if the problem recurs.

This is very confusing.

I'll try the XP partition later today.

I wonder if Hardy will fix this? I have a beta CD sitting here.