Same thing happens to me almost daily. Does not make laptop unusable but it hits my roof when it happens during Imgur browsing.
At least one thing that is not mentioned here is that when giving normal single-press "Right" xev reports events KeyRelease+KeyPress+KeyRelease (YES, strange pre-release event every time with exactly same time stamp): KeyRelease event, serial 22, synthetic NO, window 0x4a00001, root 0xa2, subw 0x0, time 2514518, (706,871), root:(706,896), state 0x0, keycode 114 (keysym 0xff53, Right), same_screen YES, XLookupString gives 0 bytes: XFilterEvent returns: False KeyPress event, serial 22, synthetic NO, window 0x4a00001, root 0xa2, subw 0x0, time 2514518, (706,871), root:(706,896), state 0x0, keycode 114 (keysym 0xff53, Right), same_screen YES, XLookupString gives 0 bytes: XmbLookupString gives 0 bytes: XFilterEvent returns: False KeyRelease event, serial 22, synthetic NO, window 0x4a00001, root 0xa2, subw 0x0, time 2514618, (706,871), root:(706,896), state 0x0, keycode 114 (keysym 0xff53, Right), same_screen YES, XLookupString gives 0 bytes: XFilterEvent returns: False When this sticky-key symptom occurs during normal single-press "Right" it will be reported as series of "KP_Right": KeyRelease event, serial 24, synthetic NO, window 0x4a00001, root 0xa2, subw 0x4c0000f, time 2883206, (116,352), root:(116,377), state 0x0, keycode 85 (keysym 0xff98, KP_Right), same_screen YES, XLookupString gives 0 bytes: XFilterEvent returns: False KeyPress event, serial 24, synthetic NO, window 0x4a00001, root 0xa2, subw 0x4c0000f, time 2883206, (116,352), root:(116,377), state 0x0, keycode 85 (keysym 0xff98, KP_Right), same_screen YES, XLookupString gives 0 bytes: XmbLookupString gives 0 bytes: XFilterEvent returns: False KeyRelease event, serial 24, synthetic NO, window 0x4a00001, root 0xa2, subw 0x4c0000f, time 2883706, (116,352), root:(116,377), state 0x0, keycode 85 (keysym 0xff98, KP_Right), same_screen YES, XLookupString gives 0 bytes: XFilterEvent returns: False KeyPress event, serial 24, synthetic NO, window 0x4a00001, root 0xa2, subw 0x4c0000f, time 2883706, (116,352), root:(116,377), state 0x0, keycode 85 (keysym 0xff98, KP_Right), same_screen YES, XLookupString gives 0 bytes: XmbLookupString gives 0 bytes: XFilterEvent returns: False ** Attachment added: "xev with imgur" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1585094/+attachment/4944154/+files/Selection_420.png -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1585094 Title: Random stuck keys on Lenovo Yoga 13 Status in xorg package in Ubuntu: Confirmed Bug description: pressing arrow keys leads randomly to the effect of stuck number key and produces output in consoles or text editors like: "2222222222" or "8888888888". Pressing some other key stops the infinite flooding. This may (or not) be related to the following flooding in /var/log/system May 24 10:01:30 yogi kernel: [ 3816.438579] atkbd serio0: Unknown key pressed (translated set 2, code 0xbe on isa0060/serio0). May 24 10:01:30 yogi kernel: [ 3816.438603] atkbd serio0: Use 'setkeycodes e03e <keycode>' to make it known. May 24 10:01:30 yogi kernel: [ 3816.443504] atkbd serio0: Unknown key released (translated set 2, code 0xbe on isa0060/serio0). May 24 10:01:30 yogi kernel: [ 3816.443516] atkbd serio0: Use 'setkeycodes e03e <keycode>' to make it known. these messages are generated approximately each 200 msec. If the former is not related to stuck key problem, please, ignore. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8 Uname: Linux 4.4.0-22-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Tue May 24 09:45:39 2016 DistUpgraded: 2016-04-24 00:21:19,103 DEBUG icon theme changed, re-reading DistroCodename: xenial DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo 3rd Gen Core processor Graphics Controller [17aa:3977] InstallationDate: Installed on 2013-11-17 (918 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MachineType: LENOVO 2191 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic.efi.signed root=UUID=f6200601-c430-459d-abab-c6d45f1e147a ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to xenial on 2016-04-23 (30 days ago) dmi.bios.date: 02/28/2013 dmi.bios.vendor: LENOVO dmi.bios.version: 66CN55WW dmi.board.asset.tag: No Asset Tag dmi.board.name: INVALID dmi.board.vendor: LENOVO dmi.board.version: 31900003WIN8 STD MLT dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo IdeaPad Yoga 13 dmi.modalias: dmi:bvnLENOVO:bvr66CN55WW:bd02/28/2013:svnLENOVO:pn2191:pvrLenovoIdeaPadYoga13:rvnLENOVO:rnINVALID:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoIdeaPadYoga13: dmi.product.name: 2191 dmi.product.version: Lenovo IdeaPad Yoga 13 dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.12.2+16.04.20160415-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Tue May 24 08:57:44 2016 xserver.configfile: default xserver.errors: SynPS/2 Synaptics TouchPad: Read error 19 xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 864 vendor LGD xserver.version: 2:1.18.3-1ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1585094/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp