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Old 06-24-2016, 11:26 AM   #1
shad0wca7
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Default System instability since 2.6 Beta

This could be a coincidence but I've noticed that after unplugging from one DisplayLink device or plugging into another, after a few system sleeps/resumes, suddenly the user CPU jumps to 99-100% (although for some reason I can't identify the process that is causing this). The system chugs to the point that a forced restart is needed

Anyone else seeing this king of thing?
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Old 06-29-2016, 05:23 PM   #2
D43m0n
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I've noticed the same behavior with the 2.5.0 drivers on EC 10.11.5 the last few days...

I can't tell what's causing it because at that time the CPU usage is so extreme I can't open Activity Monitor anymore. And guess what, I only see this behavior when plugged in a DL-device. So I installed the 2.6 beta this morning to see if there's a difference. But what keeps me wondering is why I've had an "OK"-ish experience with 2.5.0 for months and the last few days CPU usage goes up to 100%?
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Old 06-30-2016, 04:21 PM   #3
shad0wca7
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Perhaps something changed in OSX then with a latest update.. I'm glad I'm not the only one experiencing this.

Like you, I can't open Activity Monitor or it opens but then can't refresh itself to get a process list. I've managed to open terminal and run top but that doesn't show any numbered processes misbehaving - just 0% idle CPU - then terminal stops being able to accept text input
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Old 07-06-2016, 11:43 AM   #4
Carlo
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I've had at least three very severe slowdowns in the last 10 days. Nothing usable really, had to leave the Mac alone for 3-5 minutes before it became usable again.
In two cases when using Parallels, in another case just browsing with Safari. No external screens connected.
Don't have a theory yet, the CPU did not seem to be the problem.

Will investigate further if it happens again. Thing is, I don't like to open Parallels at all but if it triggers the problem I'll have to.

Carlo
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Old 07-13-2016, 01:55 PM   #5
shad0wca7
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I've just uninstalled the latest drivers - I just got a total slowdown where I had to reboot (cmd + ctrl + del) after finder bogged down viewing a PDF and I hadn't even plugged into the displaylink device. I can't say for certain if the displaylink drivers are causing this but I've never had this happen before installing the latest drivers - usually my mac is rock steady.
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