[Bug 12483] Re: laptop-mode/IDE-APM hang on various laptops

[Bart Samwel]

Hi guys,

I went through the whole thing once more, and I tried to collect all of the information in one small overview, so we could see new patterns. For laptops that I didn't know, I've collected the wireless card info from the net, I've marked these entries with "###". There seem to have been measurement errors and other bugs interfering (such as the ATI XOrg driver issue and the ipw2200 1.0.8 bug), but the big picture is pretty clear: there is a good chance that there is ipw2100/2200 hardware in all of the affected boxes.

I'm not entirely sure, but does IPW2100/2200 imply a Centrino(-like) laptop or can it exist without Centrino hardware? If it can only exist as part of a full centrino laptop then the problem may lie anywhere in the Centrino hardware. An Intel HD controller chipset issue perhaps?



BASIC SYMPTOMS:

- Crash after going into battery mode
- HD light stays on


HARDWARE OBSERVATIONS:

*** Thinkpad R51 (bug #11168, #17911)
  - ### ipw2100
  - ### mobility radeon 9000

*** Thinkpad R51 (Mark Kohler in bug #12483)

  - madwifi
  - Not solved by disabling "hdparm -B". (Or is it? see message 24-09-2005 06:56:02 UTC)
  - ### mobility radeon 9000
  
*** Thinkpad R51 (AlexHudson in bug #12483)

  - ipw2200
  - ### mobility radeon 9000

*** Thinkpad T40 (model 2379, Justin Mason, bug #12483)

  - madwifi
  - Vanilla 2.6.6 kernel + madwifi May 28, 2004
  - Vanilla 2.6.10 kernel + madwifi Jan 15, 2005
  - ATI Technologies Inc Radeon R250 Lf [Radeon Mobility 9000 M9] (rev 02) (prog-if 00 [VGA])
  - Disabling "hdparm -B" solves this for Justin.

*** Thinkpad T40 (Manoj Naik in bug #12483)

  - Not solved by disabling "hdparm -B", apparently (see msg dated 12-03-2006)
  - ### T40 can be delivered with Atheros (madwifi or airo drivers) or ipw2100
  
*** Thinkpad R40 (model 2722 B3G with Atheros AR5212 802.11abg NIC, Reihard Tartler, in bug #12483)

  - ### ati mobility radeon 7500
  - ### ipw2100

*** Thinkpad T41 (Christian Elkjaert in bug #12483)

  - ipw2100
  - radeon mobility 7500
  - Disabling "hdparm -B" does not resolve the crashes.
  - Disabling laptop mode does not _completely_ resolve the crashes (see msg in bug #12483 dated 25-12-2005), but makes them less frequent (see msg in bug #12483 dated 28-02-2006).
  
*** Thinkpad R42 (Matt Zimmerman, bug #12483)

  - ipw2200
  - Radeon Mobility 7500
  - can reproduce without laptop mode, with only hdparm -B1
  - can reproduce without hdparm -B, with only laptop mode
  
*** Dell X300 (= Celeron + ipw2200, Jeff Waugh in bug #12483)

  - Intel i855 graphics
  - ### comes with ipw2200
  
*** Dell 600M (Ben Maurer in bug #12483)
  - Still crashes with "hdparm -B" disabled
  - radeon 7000: switching to binary ati driver (see bug #10579) made problems less, but not disappear.
  - Has crashes also on AC -- may not be this bug at all.
  - See bug #17128 (ipw2200 instability)
  - ipw2200

*** Dell 600M (Brandon Hale in bug #12483)
  - Crashes not reproducable with "hdparm -B" disabled.
  - ### ipw2200 hardware

*** Dell Latitude D600 (bug #13957)
  - ### ipw2100 hardware
  
*** Acer TravelMate 620 (bug #13957)
  - Not solved by disabling "hdparm -B"
  - ### only TM623LCi comes with wireless pre-installed, Acer InviLink (Broadcom-based???) but if not a TM623LCi then user may use a different piece of hardware. HAVE TO CHECK!
  
*** Acer TravelMate 292lmi (Gabriel Wicke in bug #12483)
  - Not solved by disabling "hdparm -B"
  - ### ipw2200 hardware
  
*** Not affected: Thinkpad ??? (AgenT in bug #12483)
  - AIRONET Wireless Communications Cisco Aironet Wireless 802.11b (using module airo, not
madwifi)
  - Intel Corp. 82801 PCI Bridge (rev 81)
  - Intel Corp. 82801DBM (ICH4)
  - Ultra ATA Storage Controller (rev 01)
  - ATI Technologies Inc Radeon Mobility M6 LY 


SOFTWARE OBSERVATIONS:

- Occurs in Debian as well
- Does NOT occur in Mandriva Limited 2005 (see bug #21036)
- The only reported vanilla kernels were WITH madwifi (Justin Mason's Thinkpad T40), but other kernels may have been vanilla but were not reported as being vanilla.
- Reported on vanilla 2.6.15-rc5 by Alistair Phipps (bug # 12483), unknown if madwifi was involved there.

-- 
laptop-mode/IDE-APM hang on various laptops
https://launchpad.net/bugs/12483