Can I get sleep functionality in Mac OS 7.5.5 or earlier?

[agent_js03]

The title pretty much nails it.

I have a Macintosh Color Classic with Mac OS 7.5.5 and I would like to have sleep functionality. I have heard that the CC does not support 7.6, and even if it did that would probably use too much memory. Is there some utility or something that would allow sleep functionality?

 

[IPalindromeI]

Sleep I believe is supported by 7.5, but requires a PowerBook or a Power Mac.

 

[BadGoldEagle]

Maybe "there's an app for that" ? Or an extension perhaps?

Who knows?

 

[rsolberg]

The Colour Classic is supported by Mac OS up to 7.6.1, but 7.6.x tends to use more ram than earlier versions of System/Mac OS 7, so the CC's 10MB RAM limit can be an issue.

As for sleep mode, the closest thing the hardware can do on these machines is turning off the display and spinning down the hard drive. The system fan will remain on. You can configure the idle delay in the Energy Saver control panel, IIRC. There's probably a third-party app or extension out there to trigger display sleep immediately rather than after a delay, but that functionality isn't built into the OS like on more modern systems.

 

[Carboy7]

Sleep I believe is supported by 7.5, but requires a PowerBook or a Power Mac.

My response was blown out the window. Dang it misleading PB520!

 

[Paralel]

I can get sleep on my 540c on 7.1.2 68k, but can't say how applicable that is to desktop systems.

 

[CC_333]

Sleep works also with 6.0.8 on my Portable, so it would seem it's not strictly a matter of having a particular SSW version.

My educated guess is that Sleep funcionality exists in all SSW versions since 6.0.x, and that it may be selectively on certain machines using the gestalt ID.

That being said, one should be able to enable Sleep simply by spoofing the gestalt. Thing is, if it were that simple, how come nobody's done it? Could be that certain hardware needs to be present as well.

Anyone know for sure??

c

 

[sstaylor]

These machines are from an era in which we had DUST COVERS for our computers; "sleep" wasn't really a thing (except for laptops).

Also before OSX, the longer the computer ran the less stable it became.  Running without rebooting/powering off was an invitation to trouble.

 

[unity]

Sleep is an ability of the hardware, not software per say.

 

[PowerPup]

I remember using Sleeper on my PowerMac 6100: http://web.archive.org/web/20070815003657/http://www.stclairsoft.com/Sleeper/index.html

Granted it is not a genuine "sleep" function, but it does turn off the display and spin down the HDDs. Your CPU will more than likely still be running at max. Sleeper supports 68k and PPC.

 

[Paralel]

Sleep is an ability of the hardware, not software per say.

Good point. Its usually very "low level". That's why it wasn't widely supported in the Window's world until Intel started to integrate power management states into all of its products, laptop and desktop. At first, I remember it working rather poorly. The "Eternal Sleep" bug, where it got caught in-between sleep and full power and the only solution was a forceful shut down, was well known, so even though it could be used, it wasn't very practical, because there was no guarantee you could actually come back from sleep reliably. I still see it happen even now, but its very rare.

 

[agent_js03]

I remember using Sleeper on my PowerMac 6100: http://web.archive.org/web/20070815003657/http://www.stclairsoft.com/Sleeper/index.html

Granted it is not a genuine "sleep" function, but it does turn off the display and spin down the HDDs. Your CPU will more than likely still be running at max. Sleeper supports 68k and PPC.

Hey PowerPup, this looks pretty good. Thank you.

According to that site, there is a CPU suspend mode as well in the latest version...

This will be nice as it takes forever to boot up/down my CC all the time.

 

[BadGoldEagle]

My educated guess is that Sleep funcionality exists in all SSW versions since 6.0.x, and that it may be selectively on certain machines using the gestalt ID.

Only one way to find out. 

"I Wish I were" enables you to change the gestalt ID on the fly. A full installation must be performed on that HD though, I think ("System Software for any Macintosh")...

 

[CC_333]

Indeed! I was thinking the same thing.

It would be an interesting experiment to try.

c