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Solved > Process "com.apple.parsec-fbf.flush" on Catalina 10.15.2 prevents system from sleeping automatically.

Joined
Dec 11, 2018
Messages
56
Motherboard
Gigabyte Z370N WiFi
CPU
i5-8500
Graphics
RX 580
Mac
  1. MacBook Pro
Mobile Phone
  1. iOS
Hi there,

Recently I replaced a network card from BCM94352Z to BCM94360CS2 which has native support, but the hackintosh can't sleep automatically. I got some info by "pmset -g assertions" command.

Code:
Assertion status system-wide:
   BackgroundTask                 1
   ApplePushServiceTask           0
   UserIsActive                   1
   PreventUserIdleDisplaySleep    0
   PreventSystemSleep             0
   ExternalMedia                  0
   PreventUserIdleSystemSleep     1
   NetworkClientActive            0
Listed by owning process:
   pid 119(hidd): [0x0000052200098435] 00:00:00 UserIsActive named: "com.apple.iohideventsystem.queue.tickle serviceID:1000007f3 name:AppleUserHIDEventSe product:Convertible 2 TKL eventType:3"
    Timeout will fire in 60 secs Action=TimeoutActionRelease
   pid 426(useractivityd): [0x000006e70001849f] 00:00:01 PreventUserIdleSystemSleep named: "BTLEAdvertisement"
    Timeout will fire in 58 secs Action=TimeoutActionTurnOff
   pid 394(sharingd): [0x0000061e00018459] 00:03:22 PreventUserIdleSystemSleep named: "Handoff"
   pid 316(UserEventAgent): [0x0000017c000b82ed] 00:23:09 BackgroundTask named: "com.apple.parsec-fbf.flush"
    Created for PID: 425.
Kernel Assertions: 0x4=USB
   id=506  level=255 0x4=USB mod=1970/1/1, 8:00 AM description=com.apple.usb.externaldevice.14300000 owner=Convertible 2 TKL
   id=508  level=255 0x4=USB mod=1970/1/1, 8:00 AM description=com.apple.usb.externaldevice.14400000 owner=Razer Mamba Elite
Idle sleep preventers: IODisplayWrangler

Any help will be appreciated! Thanks!!

EDIT:
  • My hackintosh could sleep manually by the press of sleep in the Apple icon menu on the top-left conner.
  • In the few minutes after login sleep could work.
  • Not sleeping in this case means display could be turned off, however the computer won't.
  • I notice there are some people talking about "com.apple.parsec-fbf.flush" which is the service for siri (indeed, siri was already disabled on my mac). I think it may be a bug on Catalina 10.15.2.
 
Last edited:
Joined
Nov 4, 2011
Messages
612
Motherboard
GA-Z170X-UD3 F23g
CPU
i7-6700K
Graphics
RX-580
Mac
  1. iMac
Hi there,

Recently I replaced a network card from BCM94352Z to BCM94360CS2 which has native support, but the hackintosh can't sleep automatically. I got some info by "pmset -g assertions" command.

Code:
Assertion status system-wide:
   BackgroundTask                 1
   ApplePushServiceTask           0
   UserIsActive                   1
   PreventUserIdleDisplaySleep    0
   PreventSystemSleep             0
   ExternalMedia                  0
   PreventUserIdleSystemSleep     1
   NetworkClientActive            0
Listed by owning process:
   pid 119(hidd): [0x0000052200098435] 00:00:00 UserIsActive named: "com.apple.iohideventsystem.queue.tickle serviceID:1000007f3 name:AppleUserHIDEventSe product:Convertible 2 TKL eventType:3"
    Timeout will fire in 60 secs Action=TimeoutActionRelease
   pid 426(useractivityd): [0x000006e70001849f] 00:00:01 PreventUserIdleSystemSleep named: "BTLEAdvertisement"
    Timeout will fire in 58 secs Action=TimeoutActionTurnOff
   pid 394(sharingd): [0x0000061e00018459] 00:03:22 PreventUserIdleSystemSleep named: "Handoff"
   pid 316(UserEventAgent): [0x0000017c000b82ed] 00:23:09 BackgroundTask named: "com.apple.parsec-fbf.flush"
    Created for PID: 425.
Kernel Assertions: 0x4=USB
   id=506  level=255 0x4=USB mod=1970/1/1, 8:00 AM description=com.apple.usb.externaldevice.14300000 owner=Convertible 2 TKL
   id=508  level=255 0x4=USB mod=1970/1/1, 8:00 AM description=com.apple.usb.externaldevice.14400000 owner=Razer Mamba Elite
Idle sleep preventers: IODisplayWrangler

Here is my EFI folder. It looks like a problem of bluetooth and I suspect there is wrong config in SSDT. Any help will be appreciated! Thanks!!

EDIT:
  • My hackintosh could sleep manually by the press of sleep in the Apple icon menu on the top left conner.
  • If I don't open any app after restart, sleeping could work.
  • Not sleeping in this case means display could be turned off, however the computer won't.
  • I notice there are some people talking about "com.apple.parsec-fbf.flush" which is the service for siri (indeed, siri was already disabled on my mac). I think it may a bug on 10.15.2.
I have the same sleep problem with Catalina 10.15.2. With 10.15.1 everything was working fine. This basically means that I will not yet embrace Catalina on a full time basis and will therefore stick with Mojave 10.14.6 for the time being.
Greets
 
Joined
Dec 11, 2018
Messages
56
Motherboard
Gigabyte Z370N WiFi
CPU
i5-8500
Graphics
RX 580
Mac
  1. MacBook Pro
Mobile Phone
  1. iOS
I have the same sleep problem with Catalina 10.15.2. With 10.15.1 everything was working fine. This basically means that I will not yet embrace Catalina on a full time basis and will therefore stick with Mojave 10.14.6 for the time being.
Greets
I can't agree anymore. I don't find any workaround on google so far, indeed nobody talks about this. It seems that what can I do is only waiting for the next released patiently. However, the bad news is the bug wasn't fixed in the beta of 10.15.3 released yesterday.
 
Last edited:
Joined
Oct 7, 2010
Messages
16
Motherboard
GIGABYTE Z370N WIFI
CPU
i7-8700K
Graphics
Saphire Pulse RX 570 4GB
I have the same exact issue. com.apple.parsec-fbf.flush is preventing the system from auto sleep even though I disabled Siri. The only way I can get the system to auto sleep is by going into Activity Monitor and killing the parent process. In your case it would be pid 316 from your log. A system restart will relaunch com.apple.parsec-fbf.flush so you'll have to find the pid and kill it again for auto sleep to work. That is as far as I was able to diagnose, hopefully they'll be a fix or better solution.
 
Joined
Dec 11, 2018
Messages
56
Motherboard
Gigabyte Z370N WiFi
CPU
i5-8500
Graphics
RX 580
Mac
  1. MacBook Pro
Mobile Phone
  1. iOS
I have the same exact issue. com.apple.parsec-fbf.flush is preventing the system from auto sleep even though I disabled Siri. The only way I can get the system to auto sleep is by going into Activity Monitor and killing the parent process. In your case it would be pid 316 from your log. A system restart will relaunch com.apple.parsec-fbf.flush so you'll have to find the pid and kill it again for auto sleep to work. That is as far as I was able to diagnose, hopefully they'll be a fix or better solution.
Thanks for your reply! I will try it later.
 
Joined
Dec 11, 2018
Messages
56
Motherboard
Gigabyte Z370N WiFi
CPU
i5-8500
Graphics
RX 580
Mac
  1. MacBook Pro
Mobile Phone
  1. iOS
I have the same exact issue. com.apple.parsec-fbf.flush is preventing the system from auto sleep even though I disabled Siri. The only way I can get the system to auto sleep is by going into Activity Monitor and killing the parent process. In your case it would be pid 316 from your log. A system restart will relaunch com.apple.parsec-fbf.flush so you'll have to find the pid and kill it again for auto sleep to work. That is as far as I was able to diagnose, hopefully they'll be a fix or better solution.
Hi, could you provide more details about which processes I should terminate? I tried to kill a process named parsec-fbf by “kill -9”, however it relaunched again. So what is parent process you mentioned above?

EDIT: The Parent process in my case is "launchd" which couldn't be terminated.
 
Last edited:
Joined
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Messages
16
Motherboard
GIGABYTE Z370N WIFI
CPU
i7-8700K
Graphics
Saphire Pulse RX 570 4GB
Can you try killing pid 316(UserEventAgent)? or whatever the new process id is and then double check with pmset -g assertions for any background task.
 
Joined
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Messages
56
Motherboard
Gigabyte Z370N WiFi
CPU
i5-8500
Graphics
RX 580
Mac
  1. MacBook Pro
Mobile Phone
  1. iOS
Can you try killing pid 316(UserEventAgent)? or whatever the new process id is and then double check with pmset -g assertions for any background task.
Oops, I made a mistake in the pid that I should kill. It works eventually.:clap:
 
Last edited:
Joined
Dec 11, 2018
Messages
56
Motherboard
Gigabyte Z370N WiFi
CPU
i5-8500
Graphics
RX 580
Mac
  1. MacBook Pro
Mobile Phone
  1. iOS
Awesome! Hopefully a permanent fix will be available soon. It's super annoying.
Thanks for the temporary resolution.
 
Last edited:
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