I had the same problem. By pressing shift or caplock the MagicKeyboard wouldn't work anymore.
It turns out that the problem comes from the fact that I use the keyboard on both ubuntu and windows (dual boot). When I connect the keyboard on ubuntu, it no longer works on windows because the keyboard and ubuntu share a sync key that windows does not know. When I associate the keyboard on windows, it still works on ubuntu (when it shouldn't) until I press caplocks. In fact, I think the bug is that the keyboard works a bit under ubuntu while the key is not good, if it returned an error we would find the problem right away. To solve the problem, I reassociated the keyboard with windows and then I copied the connection key and I copied it in the bluetooth configuration of ubuntu. Since my two OS share the same connection key for the keyboard, I don't have any more problems between the two OS and Capslock works well. I followed this tutorial : https://desktopi18n.wordpress.com/2018/02/02 /bluetooth-mouse-in-dual-boot-of-windows-10-and-linux/ Translated with www.DeepL.com/Translator (free version) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to bluez in Ubuntu. https://bugs.launchpad.net/bugs/1341256 Title: Press caps lock on bluetooth keyboard then the keyboard go death Status in bluez package in Ubuntu: Confirmed Status in linux package in Ubuntu: Confirmed Bug description: I am typing using the Apple wireless keyboard,When I press 'caps lock',the keyboard don't work any more! So I go use keyboard on the Macbook.The key case have change,but the light on the key do not light on. I have to off the bluetooth then make it on again.Then reconnect the wireless keyboard. Yes,It work again. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: bluez 4.101-0ubuntu13 ProcVersionSignature: Ubuntu 3.16.0-3.8-generic 3.16.0-rc4 Uname: Linux 3.16.0-3-generic x86_64 NonfreeKernelModules: wl nvidia ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 CurrentDesktop: Unity Date: Sun Jul 13 17:12:23 2014 InstallationDate: Installed on 2014-03-08 (126 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140307) InterestingModules: bnep rfcomm btusb bluetooth MachineType: Apple Inc. MacBookPro9,1 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-3-generic.efi.signed root=UUID=6510f595-2f49-4798-953a-ed186346c60d ro irqpoll SourcePackage: bluez UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/08/2012 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP91.88Z.00D3.B08.1208081132 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-4B7AC7E43945597E dmi.board.vendor: Apple Inc. dmi.board.version: MacBookPro9,1 dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-4B7AC7E43945597E dmi.modalias: dmi:bvnAppleInc.:bvrMBP91.88Z.00D3.B08.1208081132:bd08/08/2012:svnAppleInc.:pnMacBookPro9,1:pvr1.0:rvnAppleInc.:rnMac-4B7AC7E43945597E:rvrMacBookPro9,1:cvnAppleInc.:ct10:cvrMac-4B7AC7E43945597E: dmi.product.name: MacBookPro9,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. hciconfig: hci0: Type: BR/EDR Bus: USB BD Address: 7C:D1:C3:79:A7:25 ACL MTU: 1021:8 SCO MTU: 64:1 UP RUNNING PSCAN RX bytes:119665 acl:5720 sco:0 events:2443 errors:0 TX bytes:13420 acl:640 sco:0 commands:718 errors:0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1341256/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
