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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
MacBook Pro
Mobile Phone
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
531
Motherboard
GA-Z170X-UD3 F23g
CPU
i7-6700K
Graphics
RX-580
Mac
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
MacBook Pro
Mobile Phone
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
MacBook Pro
Mobile Phone
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
MacBook Pro
Mobile Phone
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
Oct 7, 2010
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
Dec 11, 2018
Messages
56
Motherboard
Gigabyte Z370N WiFi
CPU
i5-8500
Graphics
RX 580
Mac
MacBook Pro
Mobile Phone
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
MacBook Pro
Mobile Phone
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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