8/2012 Macbook Pro with ML, external monitor sleep/wake issues
I've been reading several posts here and elsewhere about MBP with ML having issues waking and external monitor (including the Thunderbolt Display) from sleep. I haven't been able to find anything on this more recent than this past July. Is this still generally an issue in the community? Has anyone figured a consistient work around on this? It was these issues (and the usb 2.0 connectivity) that kept me from shelling out the $1000 on the Thunderbolt Display.
I am having issues myself with my HP monitor (connected via DVI) waking from sleep in clamshell mode. I thought I figured out a consistent work around but the issue appears to have gotten worse and more inconsistent over the weeks. The monitor was coming on from it's sleep mode upon start up, but even that is now inconsistent.
With the HP monitor off, I have been able to get the external monitor to connect if I click the wireless track pad repeatedly, waiting for the machine to wake (solid status light on the right hand corner), and then turn on the monitor. This, however, is only working part of the time now. Recently, I'm noticing that the MPB goes back to sleep quite quickly if it doesn't quickly connect to the external monitor. Then I have to do a hard reset on the monitor to get it to connect again.
The only thing that appears to work consistently is disconnecting the power cable from the HP monitor and pluggining it back in. I guess, in effect, resetting the monitor?
I've thought about calling Apple about this, but other people who've posted and contacted Apple have said the techs at Apple won't even recognize this as an issue at the moment. Has anyone had a different experience contacting Apple about this? I mean, if it's software related and they're working on an update, then it is what it is for now and patience is in order.
Luckily this HP monitor has an on/off button on front, and a power adaptor that easily disconnects and reconnects from the back of the base. After hearing of people with Thunderbolt Displays having to crawl under desks and such to unplug and replug their monitors for the wall on a regular basis due to having no on/off capabilities at the monitor, I didn't want to go there.
I Love my new machine. There are some bugs and glitches here and there. And it's taken some time to learn how the new OS does things haivng jumped from SL to ML (I didn't bother with Lion-ML happened so fast!). Overall, these are still the best machines in the world IMO and I'm happy with mine.
This wake from sleep issue is just annoying and I'm at my wits end to find a consistent work around (I've tried all the ways I can think to wake the computer-opening/closing the lid, etc etc). I thought I'd check in with the community here to see if I'm missing something that could help.
Thanks
MacBook Pro, OS X Mountain Lion (10.8.1), HP External Monitor/DVI connected