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Old 10-23-2015, 06:16 AM   #1
shad0wca7
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Default Log spamming

I've not done anything extraordinary to cause it but the DisplayLinkManager service is taking up a LOT of cpu cycles (so everything bogs down) and is spamming the logs continuously with errors:

Code:
Oct 23 07:13:04 hyperuberlaptop2 WindowServer[182] <Error>: allocate_backing_surface : IOAccelCreateSurface = e00002c7
--- last message repeated 3 times ---
Oct 23 07:13:05 hyperuberlaptop2 DisplayLinkUserAgent[385] <Error>: CGSDisplayStreamCreate: Invalid display 0xffffffff
--- last message repeated 29 times ---
Oct 23 07:13:07 hyperuberlaptop2 WindowServer[182] <Warning>: send_datagram_available_ping: pid 438 failed to act on a ping it dequeued before timing out.
Oct 23 07:13:08 hyperuberlaptop2 DisplayLinkUserAgent[385] <Error>: CGSDisplayStreamCreate: Invalid display 0xffffffff
--- last message repeated 69 times ---
Oct 23 07:13:14 hyperuberlaptop2 spindump[2032] <Notice>: Saved diag report for powerstats version com.apple.SystemStats.TopBatteryPowerEvent to /Library/Logs/DiagnosticReports/powerstats_2015-10-23-071314_hyperuberlaptop2.diag
Oct 23 07:13:15 hyperuberlaptop2 DisplayLinkUserAgent[385] <Error>: CGSDisplayStreamCreate: Invalid display 0xffffffff
--- last message repeated 9 times ---
Oct 23 07:13:15 hyperuberlaptop2 locationd[81] <Notice>: NETWORK: requery, 0, 0, 0, 0, 14, items, fQueryRetries, 0, fLastRetryTimestamp, 467273458.5
Oct 23 07:13:16 hyperuberlaptop2 DisplayLinkUserAgent[385] <Error>: CGSDisplayStreamCreate: Invalid display 0xffffffff
--- last message repeated 19 times ---
Oct 23 07:13:17 hyperuberlaptop2 mds[62] <Error>: (DiskStore.Normal:2382) 12001 1.020605
Oct 23 07:13:17 hyperuberlaptop2 WindowServer[182] <Warning>: send_datagram_available_ping: pid 438 failed to act on a ping it dequeued before timing out.
Oct 23 07:13:18 hyperuberlaptop2 DisplayLinkUserAgent[385] <Error>: CGSDisplayStreamCreate: Invalid display 0xffffffff
--- last message repeated 9 times ---
Oct 23 07:13:18 hyperuberlaptop2 WindowServer[182] <Error>: allocate_backing_surface : IOAccelCreateSurface = e00002c7
--- last message repeated 7 times ---
Oct 23 07:13:18 hyperuberlaptop2 lsd[268] <Warning>: LaunchServices: Could not store lsd-identifiers file at /private/var/db/lsd/com.apple.lsdschemes.plist
Oct 23 07:13:19 hyperuberlaptop2 DisplayLinkUserAgent[385] <Error>: CGSDisplayStreamCreate: Invalid display 0xffffffff
--- last message repeated 9 times ---
Oct 23 07:13:19 hyperuberlaptop2 Spotlight[284] <Warning>: XPC connection was invalidated
--- last message repeated 2 times ---
Oct 23 07:13:20 hyperuberlaptop2 DisplayLinkUserAgent[385] <Error>: CGSDisplayStreamCreate: Invalid display 0xffffffff
--- last message repeated 79 times ---
Oct 23 07:13:27 hyperuberlaptop2 tccd[239] <Notice>: SecTaskLoadEntitlements failed error=22
Oct 23 07:13:27 hyperuberlaptop2 Activity Monitor[2034] <Notice>: SecTaskLoadEntitlements failed error=22
--- last message repeated 2 times ---
Oct 23 07:13:28 hyperuberlaptop2 DisplayLinkUserAgent[385] <Error>: CGSDisplayStreamCreate: Invalid display 0xffffffff
--- last message repeated 39 times ---
Oct 23 07:13:31 hyperuberlaptop2 WindowServer[182] <Warning>: send_datagram_available_ping: pid 438 failed to act on a ping it dequeued before timing out.
Oct 23 07:13:31 hyperuberlaptop2 Spotlight[284] <Warning>: XPC connection was invalidated
--- last message repeated 3 times ---
Oct 23 07:13:32 hyperuberlaptop2 DisplayLinkUserAgent[385] <Error>: CGSDisplayStreamCreate: Invalid display 0xffffffff
Oct 23 07:13:32 hyperuberlaptop2 WindowServer[182] <Error>: allocate_backing_surface : IOAccelCreateSurface = e00002c7
--- last message repeated 1 time ---
Oct 23 07:13:32 hyperuberlaptop2 DisplayLinkUserAgent[385] <Error>: CGSDisplayStreamCreate: Invalid display 0xffffffff
--- last message repeated 1 time ---
Oct 23 07:13:32 hyperuberlaptop2 WindowServer[182] <Error>: allocate_backing_surface : IOAccelCreateSurface = e00002c7
--- last message repeated 5 times ---
Oct 23 07:13:32 hyperuberlaptop2 DisplayLinkUserAgent[385] <Error>: CGSDisplayStreamCreate: Invalid display 0xffffffff
--- last message repeated 16 times ---
Oct 23 07:13:33 hyperuberlaptop2 login[2036] <Notice>: USER_PROCESS: 2036 ttys000
Oct 23 07:13:34 hyperuberlaptop2 DisplayLinkUserAgent[385] <Error>: CGSDisplayStreamCreate: Invalid display 0xffffffff
--- last message repeated 19 times ---
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Old 10-23-2015, 08:19 AM   #2
Carlo
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Thank you for the report shadowcat. We're working right now on this issue, we'd like to have a solution by the final 2.5.

Best regards,
Carlo
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Old 10-23-2015, 08:56 AM   #3
shad0wca7
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Awesome, thanks! I appreciate all the hard work you guys are putting into this.
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Old 02-26-2016, 03:26 AM   #4
jb510
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I'm running 2.5 and my log still look like this:
Attached Images
File Type: jpg 2016-02-25 at 8.25 PM.jpg (21.0 KB, 4 views)
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Old 03-04-2016, 03:05 AM   #5
gurkakrieg
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I'm running 2.5 (68993) and seeing same behavior:

Code:
Mar  3 22:58:53 RANDOM-COMPUTER-NAME DisplayLinkUserAgent[393]: CGSDisplayStreamCreate: Invalid display 0xffffffff
Mar  3 22:58:55 --- last message repeated 29 times ---
Right now, DisplayLinkUserAgent is consuming 41.1% CPU.
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Old 04-20-2016, 10:29 PM   #6
joej
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This is happening a LOT to me, right now, on my Dual Head Display adapter (anker).

92% cpu for DisplayLinkManager / 40% DisplayLinkUserAgent

ARGH

mac os x 10.11.4 with most recent drivers
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Old 04-25-2016, 08:11 AM   #7
Carlo
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Hi we've made quite a few logging improvements in 2.5.1 but I have still seen this issue myself. I wonder if 10.11.4 is involved.

The issue usually goes away with a replug however very annoying and we should be able to resolve it, so it's in our list.

Kind regards,
Carlo
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