On 2020-05-07, at 2:40 PM, Macs R We <macs...@macsrwe.com> wrote: > While this is true, even in the older systems a bad PRAM battery would cause > mischief only when the machine was disconnected from all other power (for a > laptop, that means adapterless and batteryless; for a desktop, that means > unplugged or shut off with the power button, not slept). Otherwise, the Mac > will always maintain power to those functions using the non-internal-battery > power source. Unless you have a desktop, and unless you explicitly shut it > down or have a home power failure, the PRAM battery (where present) will > never come into play.
Actually, adapterless and batteryless was an issue recently. Kitty knocked the power cord out (magsafe does not mean it won't disconnect; it means the connector won't be damaged when it disconnects) and the battery drained. On the other hand, it did a full reboot after being reconnected, so ... > >> On May 7, 2020, at 2:17 PM, Karl Kuehn <kuehn.k...@gmail.com> wrote: >> >> Michael, >> I think you are misunderstanding what it going on with a bad PRAM >> battery. The time being off is a side-effect, not the proximate cause of the >> problems (restarts, etc). The problem is that the clock is not trustable (so >> not always going the right direction), along with the maintaining >> consistency with a number of firmware setting (think about mismatches >> between what hardware and software think is happening). There probably is >> also some issue with greying-out the power management hardware (which >> depends on that battery). >> >> I don’t know if there is a separate battery anymore (and never knew it >> for laptops), but I do know that people rarely knew to even look for >> problems with the batteries (Apple techs included), and so I was able to >> solve a few “unsolvable” issues with older hardware (way back when). >> >> — >> Karl Kuehn >> kuehn.k...@gmail.com >> >> >> >>> On May 7, 2020, at 1:47 PM, Macs R We <macs...@macsrwe.com> wrote: >>> >>> Well, yes and no. >>> >>> It's true a system clock time being set badly can screw up the encryption >>> services, and that's one thing that a dead internal battery will cause. I >>> save installation packages for all past OSX systems, and to install them I >>> often have to set the system clock way back to be within their >>> certificates' (short) expiration dates. Sometimes I forget to set it back, >>> and start getting strange errors like "this website's certificate is not >>> yet valid" until I remember. But it doesn't cause panics. And you would be >>> able to figure out if that's a problem by just checking your current system >>> time. Since Apple started making all their laptops with non-removable >>> batteries, I don't think they even include a separate internal battery >>> anymore. >>> >>> If you are getting true panics, you must have panic dumps available >>> somewhere in the log area, and should be able to scan those. >>> >>> You should be able to examine your root certificates in Keychain Access; >>> the app should be able to help you identify an untrusted one. >>> >>> Another thing that can cause reboots is benign — having the installation >>> system set to install updates automatically, and some of these updates >>> require a reboot. Usually the symptom of this is that you wake up to find >>> yourself back at the login window. Still, the system logs would also >>> identify this as a reboot reason. >>> >>>> On May 7, 2020, at 11:57 AM, Michael <keybou...@gmail.com> wrote: >>>> >>>> Hmm. "easy" enough to check, I just have to ... not ... use ... my >>>> computer ... for a weekend? ... >>>> >>>> Maybe a few days midweek. >>>> >>>> On 2020-05-07, at 11:55 AM, larkost <kuehn.k...@gmail.com> wrote: >>>> >>>>> I have no idea if this is the problem, but back when I was in the >>>>> troubleshooting Macs business one problem I ran into was the PRAM battery >>>>> (yes, wrong name, but...) going bad. It would cause all sorts of >>>>> mysterious problems until replaced. >>>>> >>>>> The way of checking for this was to: >>>>> 1. On a Friday make sure that the system time was set. >>>>> 2. Disconnect the computer from all network connections, and unplug it >>>>> from power. >>>>> 3. Leave it over the weekend unplugged. >>>>> 4. If the time was wrong when you booted up on Monday, then you found >>>>> your problem. >>>>> >>>>> Of course this was with desktops, And a number of years ago. >>>>> >>>>> >>>>>> On May 7, 2020, at 11:39 AM, Michael <keybou...@gmail.com> wrote: >>>>>> >>>>>> This is unhappy for me also; I have gotten two panics in just about a >>>>>> week. >>>>>> >>>>>> Absolutely nothing odd recorded in the system log. >>>>>> >>>>>> Meanwhile, on reboot, I see this message in the log: >>>>>> >>>>>> May 7 11:09:28 keybounceMBP apsd[141]: Failed to evaluate trust: No >>>>>> error. (0), result=5; retrying with revocation checking optional >>>>>> May 7 11:09:28 keybounceMBP apsd[141]: failed to evaluate trust: No >>>>>> error. (0), result=5; retrying with system roots >>>>>> May 7 11:09:28 keybounceMBP apsd[141]: Root certificate is not >>>>>> explicitly trusted >>>>>> May 7 11:09:28 keybounceMBP apsd[141]: Unrecognized leaf certificate >>>>>> May 7 11:09:30 keybounceMBP SecurityAgent[215]: User info context >>>>>> values set for >console >>>>>> May 7 11:09:30 keybounceMBP loginwindow[120]: Login Window - Returned >>>>>> from Security Agent >>>>>> >>>>>> What would make "Failure to evaluate trust: no error"? >>>>>> >>>>>> Would this be in any way related to some https web sites now refusing to >>>>>> work because the certificate chain cannot be verified (the website in >>>>>> question is just fine). >>>>>> >>>>>> OS: 10.9.5. >>>>>> >>>>>> System crash reporter directory shows nothing. There's networking diags >>>>>> from just after the reboot. >>>>>> >>>>>> System diagnostics ... nothing new, but there was stuff from powerstats >>>>>> just after midnight. There's a LOT of powerstat information over time >>>>>> there. >>>>>> >>>>>> ... and a lot of wakeup and CPU dumps from firefox. Hmm. >>>>>> >>>>>> >>>>>>> On 2020-05-07, at 8:33 AM, Chris Walker <ch...@mymac.org.uk> wrote: >>>>>>> >>>>>>> Tried to find the last reboot which *I think* was between 09 & 09:30am. >>>>>>> >>>>>>> >>>>>>> All I could find in the system log was that it rebooted shortly after >>>>>>> 9:00 am with no specified reason. The other logs didn’t tell me >>>>>>> anything that I could understand but it may be that I have the time >>>>>>> wrong and am therefore looking in the wrong place. >>>>>>> >>>>>>> I’m wondering if the best thing is to reinstall the system although >>>>>>> that may leave something in place that really shouldn't be there, but >>>>>>> until I can narrow the time down more accurately it’s a bit like >>>>>>> looking for a needle in a haystack. >>>>>>> >>>>>>> Chris >>>>>>> >>>>>>> >>>>>>>>> On 7 May 2020, at 11:26, Macs R We <macs...@macsrwe.com> wrote: >>>>>>>> >>>>>>>> Look at System Information for your current uptime. Compute the time >>>>>>>> of your last reboot. Launch Console and look at the system log, the >>>>>>>> Diagnostic Reports folders (2), and the CrashReporter folder to see >>>>>>>> what macOS claimed was the reason for the reboot. >>>>>>>> >>>>>>>>> On May 7, 2020, at 1:21 AM, Chris Walker <ch...@mymac.org.uk> wrote: >>>>>>>>> >>>>>>>>> Hi all: >>>>>>>>> >>>>>>>>> I keep getting random restarts. Whilst I’m away from the machine it >>>>>>>>> will perform a restart for no reason I can determine. I have had >>>>>>>>> problems with the power prefs not sticking but that appears to have >>>>>>>>> been solved. >>>>>>>>> >>>>>>>>> The machine feels warm but not unduly, so I don’t think it’s >>>>>>>>> temperature related. I’ve scanned for malware using ClamXAV which >>>>>>>>> found nothing and a recent Apple Diagnostic found no problems. I >>>>>>>>> have an LG 24” 4K display connected via Thunderbolt. >>>>>>>>> >>>>>>>>> Gatekeeper and XProtect are up to date. >>>>>>>>> >>>>>>>>> Anyone any ideas as to the cause or possible solutions? >>>>>>>>> >>>>>>>>> Mac Mini 2018, 3.2Ghz core i7; 32Gb Ram, MacOS 10.14.6 >>>>>>>>> >>>>>>>>> Chris >>>>>>>>> _______________________________________________ >>>>>>>>> MacOSX-talk mailing list >>>>>>>>> MacOSX-talk@omnigroup.com >>>>>>>>> https://www.omnigroup.com/mailman/listinfo/macosx-talk >>>>>>>> >>>>>>> >>>>>>> _______________________________________________ >>>>>>> MacOSX-talk mailing list >>>>>>> MacOSX-talk@omnigroup.com >>>>>>> https://www.omnigroup.com/mailman/listinfo/macosx-talk >>>>>> >>>>>> --- >>>>>> This message was composed with the aid of a laptop cat, and no mouse >>>>>> >>>>>> _______________________________________________ >>>>>> MacOSX-talk mailing list >>>>>> MacOSX-talk@omnigroup.com >>>>>> https://www.omnigroup.com/mailman/listinfo/macosx-talk >>>> >>>> --- >>>> Entertaining minecraft videos >>>> http://YouTube.com/keybounce >>>> >>>> _______________________________________________ >>>> MacOSX-talk mailing list >>>> MacOSX-talk@omnigroup.com >>>> https://www.omnigroup.com/mailman/listinfo/macosx-talk >>> >> > --- Entertaining minecraft videos http://YouTube.com/keybounce
_______________________________________________ MacOSX-talk mailing list MacOSX-talk@omnigroup.com https://www.omnigroup.com/mailman/listinfo/macosx-talk
