Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: xserver-xorg-input-synaptics (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1764097
Title:
'Apple touchpad bcm5974' is temporarily unresponsive after a few
seconds of continuous input in 'Apple MacBookPro5,4 (mid 2009)' after
upgrading to 18.04 Beta 2
Status in xserver-xorg-input-synaptics package in Ubuntu:
Confirmed
Bug description:
Report created by following
https://wiki.ubuntu.com/DebuggingTouchpadDetection#In_case_at_least_one_of_the_Touchpad_features_work.2C_but_does_not_work_correctly_and_as_expected
Let me know if anything is wrong or if I can give more info
Touchpad worked perfectly in Ubuntu 17.10 when using one and two
fingers clicks, two finger scrolling, and tapping. (I don't know if
multitouch worked, but IIRC it did in the past with Unity)
After upgrading to Bionic Beaver it frequently becomes unresponsive,
during which I can neither move the mouse cursor or scroll. I can
repro it most of the time, even directly after rebooting, but not in
100% of tries. Sometimes, without anything obvious happening (e.g., no
reboot or logging out), the problem may not occur for an hour or two
and I cannot repro it on purpose. Then after a while it is back.
Checking the CPU when it occurs does not show high load. Also repro on
gdm screen and logging in as a different user account and with a an
alternative non-gnome-shell session.
There seem to be two slightly different kinds of unresponsiveness, one
provoked by one-finger movement, the other provoked by two-finger
scrolling:
One-finger movement:
Triggered by:
Giving continuous input to touchpad for a second or two. E.g., move one
finger in a small circle. After 1-3 circles the touchpad becomes unresponsive.
(Making long straight left-right movements also tends to trigger it, but less
clearly)
Results in:
Stays unresponsive until the finger is lifted from and lowered on touchpad
again. However, lifting+lowering only restores responsiveness briefly, then it
stops again. Waiting a few seconds makes it work again, like for two-finger
scrolling.
Two-finger scrolling:
Scroll up and down a few times. Does not seem to matter what the
application is.
Results in:
Scrolling stops after a few movements. Lifting and re-lowering both fingers
does not seem to make it go again, but it works after waiting a few seconds.
However scrolling is jumpy most of the time and rarely as smooth as it was in
17.10
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xserver-xorg-input-synaptics (not installed)
ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
Uname: Linux 4.15.0-15-generic x86_64
NonfreeKernelModules: wl nvidia
ApportVersion: 2.20.9-0ubuntu4
Architecture: amd64
BootLog:
Gave up waiting for suspend/resume device
/dev/sda4: clean, 1015626/39428096 files, 55279634/157701376 blocks
Gave up waiting for suspend/resume device
/dev/sda4: clean, 1026169/39428096 files, 54683366/157701376 blocks
CurrentDesktop: ubuntu:GNOME
Date: Sun Apr 15 12:07:31 2018
DistUpgraded: 2018-04-08 10:29:35,542 ERROR got error from PostInstallScript
./xorg_fix_proprietary.py (g-exec-error-quark: Failed to execute child process
“./xorg_fix_proprietary.py” (No such file or directory) (8))
DistroCodename: bionic
DistroVariant: ubuntu
EcryptfsInUse: Yes
InstallationDate: Installed on 2012-09-15 (2037 days ago)
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64
(20120823.1)
MachineType: Apple Inc. MacBookPro5,4
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-15-generic
root=UUID=1f4ef214-a70d-44ac-8515-2d4234f32e38 ro quiet splash vt.handoff=1
SourcePackage: xserver-xorg-input-synaptics
UpgradeStatus: Upgraded to bionic on 2018-04-08 (7 days ago)
dmi.bios.date: 06/15/09
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP53.88Z.00AC.B03.0906151647
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-F22587A1
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro5,4
dmi.chassis.asset.tag: Asset Tag#
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F22587A1
dmi.modalias:
dmi:bvnAppleInc.:bvrMBP53.88Z.00AC.B03.0906151647:bd06/15/09:svnAppleInc.:pnMacBookPro5,4:pvr1.0:rvnAppleInc.:rnMac-F22587A1:rvrMacBookPro5,4:cvnAppleInc.:ct10:cvrMac-F22587A1:
dmi.product.family: MacBook Pro
dmi.product.name: MacBookPro5,4
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.91-2
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.0~rc5-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.0~rc5-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.5-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
xserver.bootTime: Sun Apr 15 11:10:46 2018
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
xserver.version: 2:1.19.6-1ubuntu3
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