[ltp] X-Windows Problem - 600E (2646 4BU)

[Bjorn Knutsson]

On 7 Dec 2000 01:46, Vivek Dasmohapatra wrote:
> On Wed, 6 Dec 2000, Shawn Morris wrote:
> 
> > > I actualy have an A20p, not a 600, but assuming they are enough alike, is
> > > there a bios setting to do  w. 'suspend on lid closee' or similar? 
> > 
> > Actually I would guess it can be controlled by apmd, as under Windows 2000
> > under the power management settings you could control this feature.
> 
> Unless I've misunderstood what apmd does [based on a quick reading of the
> apmd(8) man page], I don't see how: the bios is configured to generate a
> system suspend event when the lid is closed: apmd responds to suspend [and
> other apm] events: you could, I suppose, choose to ignore all system 
> suspends, but then fn-F4 wouldn't suspend the machine, amongst other 
> things. I don't think apmd receives any extra info to indicate what caused
> the suspend event, and I don't think it writes alterations to the
> bios. [If you happen to know different, then I bow to your superior
> knowledge, of course... ]
> 
> This is all assuming that the machine is in fact suspending on lid close:
> if it's just screen blanking kicking in on lid close, there may be some
> other BIOS setting, or it could be a bug [in something, I'm not sure
> what].

I didn't follow this thread from the start, but I thought I'd add my
0.02 euro:

The default for all Thinkpads I've seen is to suspend on lid close,
but this can be controlled using the excellent 'tpctl' utility:

# tpctl -px
...
power management sedative events:       capability    current
                                       (SZRHO)       (SZRHO)
   hardware-or-software-initiated:      SZ-HO         SZ-HO
   power-switch-initiated:              ---HO         ----O
   lid-closure-initiated:               -Z---         -----
   Standby-timer-initiated:             S----         S----
   Zuspend-or-hibern.-timer-initiated:  -Z-H-         -Z---
   Hibernate-from-susp.-timer-init'd:   ---H-         ---H-
   battery-low-initiated:               -Z-H-         -Z---
   env'mt-exhausted-initiated:          -Z---         -Z---
...
#

The key item here is "lid-closure-initiated", and my configuration is
"-----", meaning that I have deactivated suspension when the lid is
closed. Thus, I can close my lid in the middle of playing an MP3, and
use the Thinkpad as a boom box. (There will be a short glitch in the
sound just as I close the lid, though, but I guess that's the BIOS
momentarliy blocking interrupts or something.)

/Björn
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