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Message #173017
[Bug 1572739] Re: Mac UEFI boot 24x slower keyboard/touchpad troubled
Some more silly info
each keypress takes 7 - 20 s from key down to effect
In the grub menu a grub second is 11 s wall time
Sometimes the external mouse is bad, too. As in nowhere to be found.
Then there will be nothing but patience.
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https://bugs.launchpad.net/bugs/1572739
Title:
Mac UEFI boot 24x slower keyboard/touchpad troubled
Status in linux package in Ubuntu:
Confirmed
Bug description:
When rebooting after a Linux session, the UEFI and grub boots are extremely slow and the process takes 3 minutes
- As soon as the kernel boots, ie. luks input, everything is fine again
- OS X boot and option-boot is slow too, fast after FileVault password input
- Internal keyboard and touchpad is extremely slow, like 30 s per key press.
- Plug in usb keyboard and mouse: works fine, while the internals are still slow
After an OS X ession upgrading to 10.11.04, the boot got fast again
- After the net Linux session, back to slow
Impact: boot takes 3 minutes
get-around: lots of patience, possibly use of external usb keyboard
first discovered on 15.10, exists on 16.04
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-21-generic 4.4.0-21.37
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
Date: Wed Apr 20 14:29:51 2016
HibernationDevice: RESUME=/dev/mapper/C89-SWAP
MachineType: Apple Inc. MacBookPro12,1
ProcEnviron:
SHELL=/bin/bash
TERM=xterm-256color
PATH=(custom, user)
LANG=en_US.UTF-8
LANGUAGE=en_US.UTF-8
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-21-generic.efi.signed root=/dev/mapper/C89-RFS ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-4.4.0-21-generic N/A
linux-backports-modules-4.4.0-21-generic N/A
linux-firmware 1.157
SourcePackage: linux
UpgradeStatus: Upgraded to xenial on 2016-04-19 (1 days ago)
dmi.bios.date: 10/26/2015
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP121.88Z.0167.B15.1510261437
dmi.board.name: Mac-E43C1C25D4880AD6
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro12,1
dmi.chassis.type: 9
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-E43C1C25D4880AD6
dmi.modalias: dmi:bvnAppleInc.:bvrMBP121.88Z.0167.B15.1510261437:bd10/26/2015:svnAppleInc.:pnMacBookPro12,1:pvr1.0:rvnAppleInc.:rnMac-E43C1C25D4880AD6:rvrMacBookPro12,1:cvnAppleInc.:ct9:cvrMac-E43C1C25D4880AD6:
dmi.product.name: MacBookPro12,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
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References