Hi Ronni
Delay in responding due to Mail not accepting new messages while I spent an
hour or so composing a reply to another email! Then the backlog arrived all at
once.
My conclusions yesterday about localising the problem with Apple TV not waking
the iMac were not correct: more variables and tests just confirm that ATV does
not wake the iMac intermittently. It will wake iMAC with a "wake for network
access" cue sometimes.
Late this morning I did an SMC reset to give me a clean base to start with. I
will follow your suggestions after I have a few hours of testing with this
clean base.
Other responses with your comments below -
Cheers
Alan
On 09/10/2012, at 9:29 AM, Ronni Brown <ro...@mac.com> wrote:
On 08/10/2012, at 12:18 PM, Alan Smith <sma...@iinet.net.au> wrote:
Hi Alan,
You have never explained to me what you meant by this comment you made.
>>> Came to unconfirmed conclusion that my basic model iMac (no graphics card?)
What do you mean "No Graphics card"?
Your iMac should have a Graphics Card NVIDIA GeForce 9400M or ATI Radeon HD
4670
A. My error: the context was that my base option 21.5" iMac does not
work as well with graphics as the top option 27" late 2009 iMac, even with RAM
increased to 12GB. I have the NVIDIA GeForce 9400M with 256MB of DDR3 SDRAM
shared with main memory. Extending main memory didn't improve performance.
> Oddity No 1: Console log messages show a lot of mdworker, lsboxd and sandbox
> events every few minutes while Mac is sleeping OR awake (but quiet).
> ("mdworker unable to talk to lsboxd" is typical.) Forums suggest this may
> be normal for OS X 10.8 and is to do with Spotlight. Doesn't sound quite
> right to me, but then …
That is correct. mdworker is part of Spotlight, which is basically a search
engine for your Mac (think Google but locally, for your own files).
"mdworker is short for ‘metadata server worker’. mdworker is basically the
core technology behind Mac OS X’s awesome search engine Spotlight, it spiders
meta data from your Mac and its files and creates a readable index so that you
can find things practically instantaneously via Spotlight (command-spacebar)."
lsboxd is short for 'launch services sandbox daemon'
A. Thanks for detailing this. Never noticed such activity with Snow
Leopard, but it was morbid curiosity to follow up while trying to find Console
log patterns affecting 'Wake on Demand'. Just guessing - would Spotlight have
such a lot of activity because it is searching 4 permanently attached Firewire
hard drives as well as the internal HD?
I would suggest you 'Boot from Recovery Partition', then 'Repair Drive' and
then 'Repair Permissions' and then Reboot as normal.
A. I applied 'Repair Drive' and then 'Repair Permissions' after a
Restart on Sunday, from the normal disk utility access. (No problems detected,
but no improvement to Apple TV.) I will re-do this later using the Mountain
Lion Recovery HD as per your steps below.
To Boot into the Lion Recovery HD'
1. Hold down either the 'Option key' on your Mac while the Mac is starting up.
2. When you see the 'Startup Manager', let go the Option key and click the
Up-Arrow button below the Recovery HD icon.
3 Open Disk Utility
4. 'Repair Disk' and then 'Repair Disk Permissions
> Oddity No 2: With iMac sleeping, sometimes the Belkin LEDs are not flashing
> - just the WiFi LED flicks about every 90 seconds. There are NO "mdworker"
> log entries in Console during this state. I confirm that Apple TV does not
> wake Mac in this state.
Well, there is nothing happening on the Network, so the LED lights won't be
flashing. The Wi-Fi LED will flash when a wireless device iPhone/iPad is on the
Network.
A. (1) Yes, it is the iPad that causes the 90 second heartbeat. BUT (2)
- Apple TV did wake Mac this morning with no prior network activity, and
displayed a clear Console log entry of "wake reason: GIGE (Network)" which I
think is the desired action.
Your Apple TV is not waking your iMac in 'Wake On Lan' .... Do you have "Put
hard disks to sleep when possible' selected in System Preferences > Energy
Saver? If so try disabling this setting and see if it makes any difference.
A. Put hard disks to sleep is selected. I will unselect and test.
Even try disabling 'Wake for network access'... as the iMac is not waking with
this enabled.
A. iMac DID wake for network access from Apple TV early this morning.
But, yes, this is another variable. Note also that the iMac WiFi is turned
"off" as the ATV is connected via Ethernet, and that forums have suggested
leaving WiFi "on" is a possible cure.
<http://support.apple.com/kb/HT3774>
Cheers,
Ronni
17" MacBook Pro 2.3GHz Quad-Core i7 “Thunderbolt"
2.3GHz / 8GB / 750GB @ 7200rpm HD
OS X 10.8.2 Mountain Lion
Windows 7 Ultimate (under sufferance)
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