Karabiner-elements: Keybinding no longer working and log is full of errors such as "No buffer space available" and "Exit since another process is running"

[lavandongen]

Hi,

Karabiner no longer works as mentioned in the title. Below is a screenshot of the log output by Karabiner Elements. This issue has been going on for a few days now. Normally it would start acting up at the end of the day. Now it has started from the moment I got into work.

I updated to the latest beta version (12.8.2) just in case that that might make any change.

I'd like to get this fixed, because Karabiner has been working perfectly for a few years now.

Cheers

[lavandongen]

I have downgraded to 12.7.0 to see if it is something to do with 12.8+ But it still returns the same errors

[lavandongen]

Activity monitor also only shows one instance of the application running, at least for as far as I can tell

[lavandongen]

The Karabiner-eventviewer also shows the keys as registering, but they do not seem to work when typing.

[lavandongen]

Running sudo killall karabiner_observer karabiner_grabber Does nothing and the Log keeps showing the errors

[lavandongen]

As always, restarting my computer seems to do the trick. But I don't want to keep doing that all the time

[lavandongen]

It happened again and forced me to restart

[lavandongen]

Only 3 hours had to pass for it to mess up again. Great.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[gobanana66]

Just started experiencing this issue on Beta version 12.9.2

[kupkovski]

I'm facing the same problem using 12.9.2

[eugene-lookout]

Experiencing this today on 12.9.0. Stopped working after a sleep, then it started working again. Then about 3 hours later it suddenly stopped working again.

[fishcymbal]

I have the same issue now, and keybinding is completely broken after it worked intermittently for a few days. I get the same buffer space error in the log as mentioned by the OP, and whenever I open a password field or the accessibility keyboard, it erroneously shows the caps key is ON. This is after posting in issues #2250 and #2247, for reference.

Also seeing this in the Console log over and over:

Apr 29 10:01:48 MBP com.apple.xpc.launchd[1] (org.pqrs.karabiner.karabiner_grabber[67142]): Service exited with abnormal code: 1
Apr 29 10:01:48 MBP com.apple.xpc.launchd[1] (org.pqrs.karabiner.karabiner_grabber): Service only ran for 0 seconds. Pushing respawn out by 10 seconds.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[giacomocerquone]

Same problem, catalina, karabiner 12.10.1

[eugene-lookout]

It’s mostly gone away for me but occasionally much rarer happens again. Can’t figure out a way to reproduce :/.

[Deguang]

Same problem, catlina 10.15.6 ,karabiner 12.10.0 / 12.10.4

[Vringe]

Same here with Catalina 10.15.6, Karabiner 12.10.0

[MuhammedZakir]

Try beta version - https://github.com/pqrs-org/Karabiner-Elements/releases/tag/beta.

[Deguang]

@MuhammedZakir Not work. I had download the lastest version of beta.

[2020-09-21 18:42:19.389] [info] [observer] rescan devices...
[2020-09-21 18:42:19.390] [info] [observer] USB-HID Keyboard (device_id:4294972423) is observed.
[2020-09-21 18:42:19.391] [info] [observer] USB-HID Keyboard (device_id:4294972426) is observed.
[2020-09-21 18:42:20.388] [info] [grabber] caps lock is found on USB-HID Keyboard
[2020-09-21 18:42:20.391] [info] [grabber] USB-HID Keyboard (device_id:4294972426) is grabbed.
[2020-09-21 18:42:20.395] [info] [grabber] USB-HID Keyboard (device_id:4294972423) is grabbed.
[2020-09-21 18:42:27.294] [info] [grabber] USB-HID Keyboard (device_id:4294972423) is terminated.
[2020-09-21 18:42:27.295] [info] [grabber] USB-HID Keyboard (device_id:4294972426) is terminated.
[2020-09-21 18:42:27.295] [info] [observer] device_id:4294972423 is terminated.
[2020-09-21 18:42:27.299] [info] [observer] device_id:4294972426 is terminated.

[fecundf]

I'm seeing this in K-E 13.0.0 running on OSX 10.15.6, even after a force-quit of the grabber and observer & restart of Karabiner-Elements. Karabiner isn't adjusting my keys and log fills up with messages like the below.

 [error] [observer] grabber_client error: No buffer space available
[2020-10-05 11:09:33.273] [error] [session_monitor] session_monitor_receiver_client error: No buffer space available
[2020-10-05 11:09:33.273] [error] [console_user_server] grabber_client error: No buffer space available
[2020-10-05 11:09:34.301] [error] [observer] grabber_client error: No buffer space available
[2020-10-05 11:09:34.515] [info] [grabber] version 13.0.0
[2020-10-05 11:09:34.516] [info] [grabber] Exit since another process is running.
[2020-10-05 11:09:34.973] [error] [console_user_server] grabber_client error: No buffer space available
[2020-10-05 11:09:35.073] [error] [session_monitor] session_monitor_receiver_client error: No buffer space available
[2020-10-05 11:09:36.059] [error] [observer] grabber_client error: No buffer space available
[2020-10-05 11:09:36.750] [error] [console_user_server] grabber_client error: No buffer space available
[2020-10-05 11:09:36.923] [error] [session_monitor] session_monitor_receiver_client error: No buffer space available
[2020-10-05 11:09:37.898] [error] [observer] grabber_client error: No buffer space available
[2020-10-05 11:09:38.827] [error] [session_monitor] session_monitor_receiver_client error: No buffer space available
[2020-10-05 11:09:39.252] [error] [console_user_server] grabber_client error: No buffer space available
[2020-10-05 11:09:39.750] [error] [observer] grabber_client error: No buffer space available
[2020-10-05 11:09:40.668] [error] [session_monitor] session_monitor_receiver_client error: No buffer space available
[2020-10-05 11:09:41.666] [error] [observer] grabber_client error: No buffer space available
[2020-10-05 11:09:42.400] [error] [console_user_server] grabber_client error: No buffer space available
[2020-10-05 11:09:42.421] [error] [session_monitor] session_monitor_receiver_client error: No buffer space available
[2020-10-05 11:09:43.510] [error] [observer] grabber_client error: No buffer space available
[2020-10-05 11:09:44.330] [error] [session_monitor] session_monitor_receiver_client error: No buffer space available
[2020-10-05 11:09:44.536] [info] [grabber] version 13.0.0
[2020-10-05 11:09:44.536] [info] [grabber] Exit since another process is running.
[2020-10-05 11:09:45.344] [error] [observer] grabber_client error: No buffer space available

[tekezo]

@fecundf
It seems grabber failed to quit well, and so, restart is failed.
Are there any other error messages in /var/log/karabiner/grabber.log?
You can confirm it in Console.app > Log Reports > grabber.log

[fecundf]

Sorry @tekezo I just noticed your question about grabber.log- it seems that after a reboot, the grabber overwrites the old log, and I haven't experienced the problem again since my Oct 5th post. If I encounter this again will write back.