[nmglug] Freezing

Brian O'Keefe okeefe at cybermesa.com
Sun Jun 7 10:07:56 PDT 2020

Thanks Ted. I appreciate the info and the advice to hold off. I too have 
read that some graphic cards can cause lock-up. I'll leave all alone. 
I'll upgrade, if anything is now upgradable since the install is so 
recent. Still....

Have a great day!

On 6/7/20 10:00 AM, Ted Pomeroy wrote:
> Brian, Yes, wait on taking action. Try to identify the problem. Also, 
> I recommend staying clear of EFI partition for now.  It is for 
> compliance with the UEFI  standards for hardware and kernel boot. You 
> can read the Wikipedia.com article. I have had to adjust the EFI boot 
> order, but only on certain machines. If you boot and login okay no 
> changes needed.
> So, right, plenty of ram, more swap might be desirable, but seems 
> unnecessary. I would make it a habit to run and read 'top'  on a 
> regular basis to see what is running and what is using ram. Virtual 
> memory is not an issue. In top Shift+e changes the units for ram to 
> make it easier to interpret. Also look at idle(id) and waiting(wa) 
> percentages. I have found these interesting and instructive. Even 
> after closing Firefox and then starting top, I find it takes several 
> seconds to get idle up to 96% or so.
> So, try to re-create or better identify the series of events that lead 
> to freezes. Have you read the release notes? Some graphics cards are a 
> boot up issue, and the new kernel is different from previous ones. You 
> might roll back if you have an option during boot, to get to the 
> lowest kernel number. Once in awhile new kernels leave off support for 
> older parts. or special graphics cards. Audio and wifi not likely to 
> be the issue. Keep up and join us at the next NMGLUG if you can.
> Thank you, Ted P

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