Modules load/unload system doesn't suffice
Bug #78804 reported by
Wilco Baan Hofman
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux-source-2.6.20 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned |
Bug Description
Binary package hint: acpi-support
For IBM/Lenovo Thinkpad and HP laptops a fix is needed to support suspend/resume.
Adding (in /etc/default/
I suggest a more advanced modules unload/load system:
Before suspend, a list of loaded modules should be processed. If there are loaded modules which are known to cause problems if they are not unloaded (such as ipw3945 and psmouse) it should be automatically unloaded and reloaded on resume.
Regards,
Wilco Baan Hofman
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By request of Peter Whittaker, who asked me to also comment the following here:
I have an HP laptop myself, where this is needed (but doesn't fix this completely though, needs some more work here and there)
I do also need (both for suspend and hibernation) to unload the ipw3945
driver etc.
Anyway, there are lots of resources out there which state this clearly,
lots of people experience this:
http:// makarevitch. org/debian/ kernel_ 2.6.html forums1. itrc.hp. com/service/ forums/ bizsupport/ questionanswer. do?threadId= 1071411& admit=- 682735245+ 1168559128457+ 28353475 emisca. altervista. org/nx7400/ www.stroobant. be/?p=97 (flemish Dutch) www.wolframsche nck.de/ nx6325. htm www.colitti. com/lorenzo/ software/ nc6000/ hpwiki. cactii. net/hpwiki/ NC6400 people. solsys. ro/silviu/ 2006/11/ 17/hp-nx7400- linux-problems- solved/ diozaka. org/modules/ nx6310. html
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Generally speaking it's mostly an issue on HP notebooks (and some say
X60s thinkpads), is my understanding...
But there are more drivers known to cause problems on some systems and
unloading them is generally unharmful, so IMHO if either psmouse or
ipw3945 are loaded, they should be unloaded and reloaded upon resume.
Regards,
Wilco Baan Hofman