Spam: sleep and wake up working on Dell Latitude C840?

[Aleksandar Milivojevic]

Globe Trotter wrote:
> Hi,
> 
> Did anyone get sleep and more importantly wake up working on a laptop? APM used
> to work fine till the 2.6.8 or 2.6.9 kernels for FC2. It has not worked ever
> since, either ACPI or APM. It goes to sleep fine, but has to be powered off and
> booted for wakeup.

Never worked for me.  I have an older laptop that supports only APM.  I 
can get it to sleep (save to memory).  On wakeup, it does come back on 
kind of.  But with garbled screen.  If I switch to text console, and 
back to X, than it is OK.  So this isn't really a problem (more like 
annoyance).  The real problem is that on any disk I/O it freezes 
completely.  The only thing that helps is to power it off, and than back 
on.  I can hear the disk has spun up, so it should be working.  Have no 
idea why it freezes on disk I/O.  Couldn't find any workaround.  Under 
Windows (default generic Microsoft APM driver, there are no hardware 
specific drivers for this laptop) it works perfectly (both stand-by and 
hibernate).  Because of that, I'm booting Linux only when connected to 
AC, when on batteries only Windows.  And yeah, it would be nice to have 
hybernate (save to disk) feature under Linux...

-- 
Aleksandar Milivojevic <amilivojevic at pbl.ca>    Pollard Banknote Limited
Systems Administrator                           1499 Buffalo Place
Tel: (204) 474-2323 ext 276                     Winnipeg, MB  R3T 1L7