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Re: Re: Frozen touchpad after resume

Ritesh Raj Sarraf wrote:

>Why don't you modify his script to unload the psmouse module before
>hibernating and load it on resume ? 

This made no difference - whether the touchpad-related modules are left 
loaded, or unloaded before or after suspend, then reloaded. I also tried 
unloading the usb modules, as I read that they can be a problem, but to no 
avail. I suspect that the root of the problem is the process by which the 
devices in /dev/input are recreated (by udev, I guess?) after a 
suspend-to-ram; this is still a mystery to me, but I have a few leads.

(I should clarify that I am concentrating on suspend-to-ram only; I have had 
some success with suspend-to-disk but it takes longer than a reboot and 
scrambles the modules; I'm sure they can be unscrambled with a script, but I 
don't think I would use it at that speed!)
>[...] KDE's klaptop daemon is quite enough to
>handle all my acpi/power related issues. Try it.

I am also a KDE user (and fan!); but klaptop suspend/hibernate do not work for 
me, the cd drive spins and lights flash on attempted resume but the machine 
does not wake up - perhaps, as David Härdeman suggested, my hardware does not 
yet have kernel support.

>What Software Suspend version are you using ? Is it a module or compiled in
>into the kernel ?

It's enabled in my kernel config. (2.6.11) - compiled-in, as I don't think it 
can be compiled as a module. I also have acpi_sleep enabled.

>[...] What acpi modes does your
>machine support ?

It is a "whitebox" machine, and the manufacturers aren't speaking to me since 
I let it slip that I use Gnu-Linux (apparently that is subversive!), so I can 
only guess that S1 works (screen blanking is OK), S3 is available because the 
indicator flashes correctly during a suspend (only the touchpad fails on 
resume), and S4 is hibernate. Naturally, S0 and S5, too. Is this what you are 
asking about? And, do you know of a way to test for which modes are 

Thank you for all your suggestions; I will struggle on! :)


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