[ltp] Re: Suspending with AC & PC Cards

[Keith Frechette]

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> Maybe David Hinds might know?  If it's pcmcia controller setup, it
> might be fixable there.  Or Keith Frechette might be able to tell us
> what the BIOS is looking for in this case.  Hopefully he's watching
> this thread (if not, maybe we'll bug him).

Huh? OK, I'm awake now. So what's the deal? Suspend doesn't work while on 
AC with a PC Card in use? I vaguely remember similar behaviors on NT 4, 
because the OS doesn't "stop" the card before putting the system to sleep 
(on Windows 9x/2000, the OS activately participates in a suspend, stopping 
the devices as needed before the suspend). Also, there is a BIOS option 
(perhaps controlled via PS2) that prevents the system from 
timer-suspending when running on AC (or in a dock) -- however, I wouldn't 
think that would affect user-initiate suspends (ie. Fn-F4).

So, what were the exact conditions that cause the failure (inability to 
suspend)? Also, what combinations do result in a proper suspend (e.g., 
does Fn-F4 suspend, but closing the lid does not)?

-- Keith

Keith Frechette
Linux Development Lead, Mobile Computing Options and Software Development
IBM Research Triangle Park, North Carolina
kfrechet@us.ibm.com / 919-543-3761 / TieLine:441-3761

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<br><font size=2><tt>&gt; Maybe David Hinds might know? &nbsp;If it's pcmcia controller setup, it<br>
&gt; might be fixable there. &nbsp;Or Keith Frechette might be able to tell us<br>
&gt; what the BIOS is looking for in this case. &nbsp;Hopefully he's watching<br>
&gt; this thread (if not, maybe we'll bug him).</tt></font><font size=2 face="sans-serif"><br>
</font>
<br><font size=2 face="sans-serif">Huh? OK, I'm awake now. So what's the deal? Suspend doesn't work while on AC with a PC Card in use? I vaguely remember similar behaviors on NT 4, because the OS doesn't &quot;stop&quot; the card before putting the system to sleep (on Windows 9x/2000, the OS activately participates in a suspend, stopping the devices as needed before the suspend). Also, there is a BIOS option (perhaps controlled via PS2) that prevents the system from timer-suspending when running on AC (or in a dock) -- however, I wouldn't think that would affect user-initiate suspends (ie. Fn-F4).</font>
<br>
<br><font size=2 face="sans-serif">So, what were the exact conditions that cause the failure (inability to suspend)? Also, what combinations do result in a proper suspend (e.g., does Fn-F4 suspend, but closing the lid does not)?</font>
<br>
<br><font size=2 face="sans-serif">-- Keith</font>
<br><font size=2 face="sans-serif"><br>
Keith Frechette<br>
Linux Development Lead, Mobile Computing Options and Software Development<br>
IBM Research Triangle Park, North Carolina<br>
kfrechet@us.ibm.com / 919-543-3761 / TieLine:441-3761<br>
</font>
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