Public bug reported:
How to reproduce the bug
* open a long PDF in evince, or a long webpage in Firefox (this page should do)
* sroll with touchpad (two-fingers on my system)
* when you take of your fingers from the touchpad, the document keeps on
scrolling, slowing down (like inertia)
* before it has completely stopped, press CTRL (pretend you want to do CTRL+F,
for example)
* the document zooms (in or out, depending on the direction of the scroll and
your configuation)
I think I understand what happens here: in order to provide the
"inertia" in the scrolling, the touch pas emits "scroll" events even
after I stoped moving my finders, and as soon as I press CTRL, *those*
events are interpreted as zoom events. But this is very annoying. I
would expect that those "extra" events inherit modifiers from the
"original" events, no matter what happens on the keyboard.
Also, it happened to me quite a lot recently (14.04 upgrade?), so I
suspect this might be due to a recent change.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8
ProcVersionSignature: Ubuntu 3.13.0-30.54-generic 3.13.11.2
Uname: Linux 3.13.0-30-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: GNOME
Date: Sun Jul 6 16:09:19 2014
DistUpgraded: 2014-05-16 20:26:38,732 DEBUG enabling apt cron job
DistroCodename: trusty
DistroVariant: ubuntu
DkmsStatus:
virtualbox, 4.3.10, 3.11.0-20-generic, x86_64: installed
virtualbox, 4.3.10, 3.13.0-24-generic, x86_64: installed
virtualbox, 4.3.10, 3.13.0-27-generic, x86_64: installed
virtualbox, 4.3.10, 3.13.0-29-generic, x86_64: installed
virtualbox, 4.3.10, 3.13.0-30-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev
09) (prog-if 00 [VGA controller])
Subsystem: Sony Corporation Device [104d:90b6]
InstallationDate: Installed on 2013-11-20 (227 days ago)
InstallationMedia: Ubuntu-GNOME 13.10 "Saucy Salamander" - Release amd64
(20131017)
Lsusb:
Bus 001 Device 002: ID 8087:8000 Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 0bda:5727 Realtek Semiconductor Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Sony Corporation SVP1321R4E
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-30-generic
root=UUID=a655c41f-a13c-45f0-9863-9e9d6209d9e4 ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: Upgraded to trusty on 2014-05-16 (50 days ago)
dmi.bios.date: 09/09/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: R1040V7
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrR1040V7:bd09/09/2013:svnSonyCorporation:pnSVP1321R4E:pvrC60C6N5S:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: SVP1321R4E
dmi.product.version: C60C6N5S
dmi.sys.vendor: Sony Corporation
version.compiz: compiz N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.1
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Sun Jul 6 09:54:40 2014
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
product id 38562
vendor MEI
xserver.version: 2:1.15.1-0ubuntu2
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug trusty ubuntu
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which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1338243
Title:
spurious zooming when scrolling with touchpad
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