Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!eternal-september.org!feeder.eternal-september.org!news.swapon.de!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: Jolly Roger Newsgroups: comp.sys.mac.system Subject: Re: Repetitive Screen Sleep Date: 29 Mar 2015 15:55:59 GMT Organization: People for the Ethical Treatment of Pirates Lines: 90 Message-ID: References: <2015032018020055812-xxx@yyyzzz> <2015032907262657807-xxx@yyyzzz> <2015032908143518007-xxx@yyyzzz> X-Trace: individual.net 3ejUwyGaAH1YcAuO9A3GfgZVJvE5EusxNPgjyofkSyUWtEC8LW Cancel-Lock: sha1:RNCv/zOKBGp65i6OgbJIFa41N5o= X-Face: _.g>n!a$f3/H3jA]>9pN55*5<`}Tud57>1Y%b|b-Y~()~\t,LZ3e up1/bO{=-) User-Agent: slrn/1.0.1 (Darwin) Xref: csiph.com comp.sys.mac.system:72345 On 2015-03-29, gtr wrote: > On 2015-03-29 14:52:28 +0000, Jolly Roger said: > >> On 2015-03-29, gtr wrote: >>> On 2015-03-21 13:37:34 +0000, Jolly Roger said: >>> >>>> On 2015-03-21, gtr wrote: >>>>> This one has me thinking I need to replace my late-2009 iMac post haste: >>>>> >>>>> The screen sleeps. And I can move my mouse or hit the esc key as much >>>>> as I like; it's not coming back. I have the screen-saver hot corners >>>>> set so that the upper left corner will sleep the screen. If I move my >>>>> mouse up there (blind), and then move it back out, it wakes up. Less >>>>> than two seconds later it blacks out again, I wake it up, it gives me a >>>>> second or second and a half and blacks out again. >>>> >>>> Make it happen again, and then take a look at the console and system logs, >>>> noting any messages that appear at the time of the incident. Post those >>>> messages here for further diagnosis. >>> >>> This is the only thing I can identify that took place around the time >>> of the black-screen madness this morning. It's repetitive, but then >>> there is another item in there so I posted about 3 iterations of the >>> whole mess in hopes you can analyze it. Thanks for even the slightest >>> hint that I don't have to buy a new box: >>> >>> 3/29/15 6:56:25.216 AM identityservicesd[295]: >>> : notification >>> observer: com.apple.iChat notification: __CFNotification >>> 0x7fc2f2c0c660 {name = _NSDoNotDisturbEnabledNotification} >> >> [snip] >> >> Ok, that's from the console log, and doesn't show much of anything that >> seems relevant. I would expect to find better details in the >> /var/log/system.log file. Look for any entries time stamped just before >> or during the time you had the problem. > > Sorry if this seems overkill, but I can't read what I'm writing while I > write it, and I've managted to snatch what is likely too much > information. What time did the incident actually occur? Without knowing that, sifting through countless log entries is a real pain. What version OS X are you running on this machine? [snip] > Mar 29 06:55:20 Ducks.local WindowServer[192]: > device_generate_desktop_screenshot: authw 0x0(0), shield 0x0(0) > Mar 29 06:55:20 Ducks.local WindowServer[192]: > device_generate_lock_screen_screenshot: authw 0x0(0)[inf, inf, 0, 0] > shield 0x0(0), dev [1920,1080] These two messages seem to indicate that the machine is saving your work before going to sleep. > Mar 29 06:55:20 Ducks.local WindowServer[192]: > CGXDisplayDidWakeNotification [42815621194240]: posting > kCGSDisplayDidWake This message seems to indicate your machine is waking up. The time stamp is the same, though. That's weird. Sleep followed by immediate wake? > Mar 29 06:55:20 Ducks.local WindowServer[192]: > handle_will_sleep_auth_and_shield_windows: Deferring. Not sure what this means. I'm curious: what do you get when you execute this command in a terminal window?: pmset -g assertions Have you tried disabling any menu extras you have installed that might interfere with the normal operation of WindowServer? I've read reports of Google Chrome causing problems with sleep in the past. Do you use Chrome regularly? Does this problem occur only in your user account? Have you tried creating a new temporary OS X user account to see if the problem happens there? -- E-mail sent to this address may be devoured by my ravenous SPAM filter. I often ignore posts from Google. Use a real news client instead. JR