One more bit of description, though it is rare, this problem does happen when I am dragging a text selection. In my most recent example of that, the text selection jumped to a window move. I also didn't mention the detail that the location of the unrequested drop will be offset from the location of the unrequested pick up a new drag.
-- 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/1926976 Title: during mouse drag operations I'm getting undesired/unprompted dropping and potentially picking up of something else Status in xorg package in Ubuntu: New Bug description: I am not really sure this is an Xorg problem. Since my last system update (upon the system prompting), I think less than a week ago, I have noticed this troubling intermittent behavior. I go to drag (mouse-initiated) a window across some screen distances (between external monitors and my laptop's builtin monitor) the window will get dropped without me releasing the mouse button before arriving at my desired drop point. More than half the times this happens, something will immediately be picked up in a drag operation. Sometimes it is another window that begins being moved. Other times it is a window resize operation that is picked up. A third option is the selection of text. I have noticed that most of the time it is triggered when I am moving rapidly (though no more rapidly than I have done successfully in the past). Sometimes it happens when I pause during the drag operation. It even happens infrequently when I am dragging slowly. Often I can just go back and pick up the window and complete the operation. However, sometimes the problem just keeps happening until I give up and go away for 5 minutes or so. I have a stock configuration of 20.04. I keep it updated and haven't changed anything significant about X, Gnome, etc. I have done a few tweaks, but nothing I can think of that would relate to this problem. My laptop, a Dell XPS 13, uses a USB 3.1 hub and through that drives two monitors via HDMI. My mouse is bluetooth - Logitech MX Vertical. I don't believe I have installed any proprietary drivers. My 3 displays are arranged into an inverted "L" shape, as the laptop display is "below" and identically sized to the 27" monitor "above" it. The other 27" monitor is to the left of the first one. Some, potentially useful, debugging info: $ lsb_release -rd Description: Ubuntu 20.04.2 LTS Release: 20.04 $ apt-cache policy xorg xorg: Installed: 1:7.7+19ubuntu14 Candidate: 1:7.7+19ubuntu14 Version table: *** 1:7.7+19ubuntu14 500 500 http://us.archive.ubuntu.com/ubuntu focal/main amd64 Packages 100 /var/lib/dpkg/status $ bluetoothctl --version bluetoothctl: 5.53 $ hciconfig -a hci0: Type: Primary Bus: USB BD Address: 9C:B6:D0:99:27:2C ACL MTU: 1024:8 SCO MTU: 50:8 UP RUNNING RX bytes:21743080 acl:954252 sco:0 events:141080 errors:0 TX bytes:6895 acl:169 sco:0 commands:208 errors:0 Features: 0xff 0xfe 0x8f 0xfe 0xd8 0x3f 0x5b 0x87 Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 Link policy: RSWITCH HOLD SNIFF Link mode: SLAVE ACCEPT Name: 'kbuchs' Class: 0x0c010c Service Classes: Rendering, Capturing Device Class: Computer, Laptop HCI Version: 4.2 (0x8) Revision: 0x0 LMP Version: 4.2 (0x8) Subversion: 0x25a Manufacturer: Qualcomm (29) $ bluetoothctl Agent registered [CHG] Controller 9C:B6:D0:99:27:2C Pairable: yes [MX Vertical]# show Controller 9C:B6:D0:99:27:2C (public) Name: kbuchs Alias: kbuchs Class: 0x000c010c Powered: yes Discoverable: no DiscoverableTimeout: 0x000000b4 Pairable: yes UUID: A/V Remote Control (0000110e-0000-1000-8000-00805f9b34fb) UUID: Audio Source (0000110a-0000-1000-8000-00805f9b34fb) UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb) UUID: Headset AG (00001112-0000-1000-8000-00805f9b34fb) UUID: Audio Sink (0000110b-0000-1000-8000-00805f9b34fb) UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb) UUID: Generic Access Profile (00001800-0000-1000-8000-00805f9b34fb) UUID: Headset (00001108-0000-1000-8000-00805f9b34fb) UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb) Modalias: usb:v1D6Bp0246d0535 Discovering: no Advertising Features: ActiveInstances: 0x00 SupportedInstances: 0x05 SupportedIncludes: tx-power SupportedIncludes: appearance SupportedIncludes: local-name [MX Vertical]# devices Device D4:51:67:AF:3D:FF MX Vertical [MX Vertical]# info D4:51:67:AF:3D:FF Device D4:51:67:AF:3D:FF (random) Name: MX Vertical Alias: MX Vertical Appearance: 0x03c2 Icon: input-mouse Paired: yes Trusted: yes Blocked: no Connected: yes LegacyPairing: no UUID: Generic Access Profile (00001800-0000-1000-8000-00805f9b34fb) UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb) UUID: Device Information (0000180a-0000-1000-8000-00805f9b34fb) UUID: Battery Service (0000180f-0000-1000-8000-00805f9b34fb) UUID: Human Interface Device (00001812-0000-1000-8000-00805f9b34fb) UUID: Vendor specific (00010000-0000-1000-8000-011f2000046d) Modalias: usb:v046DpB020d0009 [MX Vertical]# quit $ rfkill list 0: hci0: Bluetooth Soft blocked: no Hard blocked: no 1: phy0: Wireless LAN Soft blocked: no Hard blocked: no $ sudo lshw kbuchs description: Notebook product: XPS 13 9380 (08AF) vendor: Dell Inc. serial: FMCN6Y2 width: 64 bits capabilities: smbios-3.2.1 dmi-3.2.1 smp vsyscall32 configuration: boot=normal chassis=notebook family=XPS sku=08AF uuid=44454C4C-4D00-1043-804E-C6C04F365932 *-core description: Motherboard product: 088MRW vendor: Dell Inc. physical id: 0 version: A00 serial: /FMCN6Y2/CNCMK009590662/ *-firmware description: BIOS vendor: Dell Inc. physical id: 0 version: 1.11.0 date: 07/06/2020 size: 64KiB capacity: 32MiB capabilities: pci pnp upgrade shadowing cdboot bootselect edd int13floppynec int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer acpi usb smartbattery biosbootspecification netboot uefi ... *-pci description: Host bridge product: Coffee Lake HOST and DRAM Controller vendor: Intel Corporation physical id: 100 bus info: pci@0000:00:00.0 version: 0b width: 32 bits clock: 33MHz configuration: driver=skl_uncore resources: irq:0 *-display description: VGA compatible controller product: UHD Graphics 620 (Whiskey Lake) vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 00 width: 64 bits clock: 33MHz capabilities: pciexpress msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:159 memory:db000000-dbffffff memory:50000000-5fffffff ioport:3000(size=64) memory:c0000-dffff ... *-usb description: USB controller product: Cannon Point-LP USB 3.1 xHCI Controller vendor: Intel Corporation physical id: 14 bus info: pci@0000:00:14.0 version: 30 width: 64 bits clock: 33MHz capabilities: pm msi xhci bus_master cap_list configuration: driver=xhci_hcd latency=0 resources: irq:130 memory:dc500000-dc50ffff *-usbhost:0 product: xHCI Host Controller vendor: Linux 5.8.0-50-generic xhci-hcd physical id: 0 bus info: usb@1 logical name: usb1 version: 5.08 capabilities: usb-2.00 configuration: driver=hub slots=12 speed=480Mbit/s ... *-usbhost:1 product: xHCI Host Controller vendor: Linux 5.8.0-50-generic xhci-hcd physical id: 1 bus info: usb@2 logical name: usb2 version: 5.08 capabilities: usb-3.10 configuration: driver=hub slots=6 speed=10000Mbit/s ... *-pci:2 description: PCI bridge product: Cannon Point-LP PCI Express Root Port #9 vendor: Intel Corporation physical id: 1d bus info: pci@0000:00:1d.0 version: f0 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:124 ioport:4000(size=12288) memory:ac000000-da0fffff ioport:60000000(size=1241513984) *-pci description: PCI bridge product: JHL6540 Thunderbolt 3 Bridge (C step) [Alpine Ridge 4C 2016] vendor: Intel Corporation physical id: 0 bus info: pci@0000:03:00.0 version: 02 width: 32 bits clock: 33MHz capabilities: pci pm msi pciexpress normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:16 ioport:4000(size=8192) memory:ac000000-da0fffff ioport:60000000(size=1241513984) *-pci:0 description: PCI bridge product: JHL6540 Thunderbolt 3 Bridge (C step) [Alpine Ridge 4C 2016] vendor: Intel Corporation physical id: 0 bus info: pci@0000:04:00.0 logical name: /dev/fb0 version: 02 width: 64 bits clock: 33MHz capabilities: pci pm msi pciexpress normal_decode bus_master cap_list fb configuration: depth=32 driver=pcieport mode=3840x2160 visual=truecolor xres=3840 yres=2160 resources: iomemory:1f10-1f0f irq:126 memory:da000000-da0fffff *-generic description: System peripheral product: JHL6540 Thunderbolt 3 NHI (C step) [Alpine Ridge 4C 2016] vendor: Intel Corporation physical id: 0 bus info: pci@0000:05:00.0 version: 02 width: 32 bits clock: 33MHz capabilities: pm msi pciexpress msix bus_master cap_list configuration: driver=thunderbolt latency=0 resources: irq:16 memory:da000000-da03ffff memory:da040000-da040fff *-pci:1 description: PCI bridge product: JHL6540 Thunderbolt 3 Bridge (C step) [Alpine Ridge 4C 2016] vendor: Intel Corporation physical id: 1 bus info: pci@0000:04:01.0 version: 02 width: 64 bits clock: 33MHz capabilities: pci pm msi pciexpress normal_decode bus_master cap_list configuration: driver=pcieport resources: iomemory:41410-4140f irq:127 ioport:4000(size=4096) memory:ac000000-c3efffff ioport:60000000(size=536870912) *-pci:2 description: PCI bridge product: JHL6540 Thunderbolt 3 Bridge (C step) [Alpine Ridge 4C 2016] vendor: Intel Corporation physical id: 2 bus info: pci@0000:04:02.0 version: 02 width: 64 bits clock: 33MHz capabilities: pci pm msi pciexpress normal_decode bus_master cap_list configuration: driver=pcieport resources: iomemory:1f10-1f0f irq:128 memory:c3f00000-c3ffffff *-usb description: USB controller product: JHL6540 Thunderbolt 3 USB Controller (C step) [Alpine Ridge 4C 2016] vendor: Intel Corporation physical id: 0 bus info: pci@0000:39:00.0 version: 02 width: 32 bits clock: 33MHz capabilities: pm msi pciexpress xhci bus_master cap_list configuration: driver=xhci_hcd latency=0 resources: irq:149 memory:c3f00000-c3f0ffff *-usbhost:0 product: xHCI Host Controller vendor: Linux 5.8.0-50-generic xhci-hcd physical id: 0 bus info: usb@3 logical name: usb3 version: 5.08 capabilities: usb-2.00 configuration: driver=hub slots=2 speed=480Mbit/s *-usbhost:1 product: xHCI Host Controller vendor: Linux 5.8.0-50-generic xhci-hcd physical id: 1 bus info: usb@4 logical name: usb4 version: 5.08 capabilities: usb-3.10 configuration: driver=hub slots=2 speed=10000Mbit/s *-usb description: USB hub product: USB3.0 Hub vendor: VIA Labs, Inc. physical id: 2 bus info: usb@4:2 version: 3.83 capabilities: usb-3.10 configuration: driver=hub slots=4 speed=5000Mbit/s *-usb:0 description: Generic USB device product: USB 10/100/1000 LAN vendor: Realtek physical id: 1 bus info: usb@4:2.1 version: 30.00 serial: 000001 capabilities: usb-3.00 configuration: driver=r8152 maxpower=288mA speed=5000Mbit/s *-usb:1 description: Mass storage device product: USB3.0 Card Reader vendor: Generic physical id: 4 bus info: usb@4:2.4 version: 15.39 serial: 000000001539 capabilities: usb-3.20 scsi configuration: driver=usb-storage maxpower=896mA speed=5000Mbit/s *-pci:3 description: PCI bridge product: JHL6540 Thunderbolt 3 Bridge (C step) [Alpine Ridge 4C 2016] vendor: Intel Corporation physical id: 4 bus info: pci@0000:04:04.0 version: 02 width: 64 bits clock: 33MHz capabilities: pci pm msi pciexpress normal_decode bus_master cap_list configuration: driver=pcieport resources: iomemory:51510-5150f irq:129 ioport:5000(size=4096) memory:c4000000-d9ffffff ioport:80000000(size=704643072) ... ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.8.0-50.56~20.04.1-generic 5.8.18 Uname: Linux 5.8.0-50-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.16 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Mon May 3 09:34:49 2021 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu DkmsStatus: wireguard, 1.0.20200429: added ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation UHD Graphics 620 (Whiskey Lake) [8086:3ea0] (prog-if 00 [VGA controller]) Subsystem: Dell UHD Graphics 620 (Whiskey Lake) [1028:08af] InstallationDate: Installed on 2020-11-17 (166 days ago) InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) MachineType: Dell Inc. XPS 13 9380 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-50-generic root=UUID=a3d3c795-2382-48b6-9049-a71e11a2f3f6 ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/06/2020 dmi.bios.release: 1.11 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.11.0 dmi.board.name: 088MRW dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.11.0:bd07/06/2020:br1.11:svnDellInc.:pnXPS139380:pvr:rvnDellInc.:rn088MRW:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: XPS dmi.product.name: XPS 13 9380 dmi.product.sku: 08AF dmi.sys.vendor: Dell Inc. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.102-1ubuntu1~20.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.6-0ubuntu0.20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 20.2.6-0ubuntu0.20.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200226-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1926976/+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
