vanvugt: Well, I ran into a little issue. I went ahead and did a
reinstall of ubuntu (at the point when I submitted my original bug, I
was running PopOS). Before ANY updates, the trackpad works as it should
until I launch software center (or even dmesg -w). The instant I run
one of those, the track pad stops working. (kernel 5.4.0-26-generic).
This activity is the same in Wayland and Xorg.
After I did an update to bring it to the latest updates (kernel
5.4.0.29-generic + whatever else needed to be updated from the current
ISO downloadable from Ubuntu (I downloaded it this morning to
reinstall)) the trackpad works at the login screen as it should (clicks
and everything), but once the full desktop is brought up it stops
working. It will actually work for a few seconds until the desktop is
done loading.
kaihengfeng: Ok, this was interesting. I downloaded the tool and ran it, the
first interesting thing is that there are 4 entries listed for the input, 3 of
which are listed for Synaptics pad -
/dev/hidraw0: Synaptics T Pad V 01.31
/dev/hidraw1: Synaptics T Pad V 01.31
/dev/hidraw2: SYNA7500:00 06CB:780E
/dev/hidraw3: Synaptics T Pad V 01.31
hidraw0 gives data feed back as I move my finger over the trackpad, clicking
the buttons show
data scrolling similar to as I move my finger on the trackpad
hidraw1 give basic info, but no data feed back as I click or move my finger on
the trackpad - this
appears to be the hid interface of the keyboard, as I press keys it
shows what key I press
hidraw2 Is the touch screen of the tablet portion, it gives feed back as I move
my finger on the
screen
hidraw3 I have NO idea what this is, keypresses do nothing, trackpad
interaction does nothing,
touch screen does nothing, buttons on the side of the screen (volume
up/down) do not
trigger any feedback
hidraw0 is definitely the trackpad input; I wonder if somehow when the
desktop pulls up its changing what it thinks it should use for the
trackpad from hidraw0 to hidraw3?
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https://bugs.launchpad.net/bugs/1877655
Title:
[Dell Venue 11 Pro 7140] Trackpad does not work
Status in libinput package in Ubuntu:
Incomplete
Status in linux package in Ubuntu:
Incomplete
Bug description:
I have a Dell Venue Pro 7140 with the keyboard/trackpad/extra battery
dock. PopOS 20.04 fully updated. I have experienced this bug on
stock Ubuntu 20.04 as well as Kubuntu 20.04.
When at the login page, the trackpad and keyboard operate as they
should. Once the login process is complete and the desktop is
displayed, the keyboard still works as expected but the trackpad no
longer controls the pointer. The touch display still functions as
expected but the trackpad on the keyboard dock doesn't work.
The attached document is my device list, here is the evtest:
Input driver version is 1.0.1
Input device ID: bus 0x3 vendor 0x6cb product 0x2819 version 0x111
Input device name: "Synaptics T Pad V 01.31 Touchpad"
Supported events:
Event type 0 (EV_SYN)
Event type 1 (EV_KEY)
Event code 272 (BTN_LEFT)
Event code 325 (BTN_TOOL_FINGER)
Event code 330 (BTN_TOUCH)
Event code 333 (BTN_TOOL_DOUBLETAP)
Event code 334 (BTN_TOOL_TRIPLETAP)
Event type 3 (EV_ABS)
Event code 0 (ABS_X)
Value 483
Min 0
Max 1056
Resolution 12
Event code 1 (ABS_Y)
Value 266
Min 0
Max 516
Resolution 12
Event code 47 (ABS_MT_SLOT)
Value 0
Min 0
Max 2
Event code 53 (ABS_MT_POSITION_X)
Value 0
Min 0
Max 1056
Resolution 12
Event code 54 (ABS_MT_POSITION_Y)
Value 0
Min 0
Max 516
Resolution 12
Event code 55 (ABS_MT_TOOL_TYPE)
Value 0
Min 0
Max 2
Event code 57 (ABS_MT_TRACKING_ID)
Value 0
Min 0
Max 65535
Event type 4 (EV_MSC)
Event code 5 (MSC_TIMESTAMP)
Properties:
Property type 0 (INPUT_PROP_POINTER)
Property type 2 (INPUT_PROP_BUTTONPAD)
Testing ... (interrupt to exit)
I did try to remove xserver-xorg-input-synaptics, but it is not
installed on 20.04.
There is still an issue with Wayland and the trackpad, but it's different
than Xorg so the problem may be in how Xorg is processing the trackpad (I
honestly don't know) - in Wayland, it will work until I attempt to run the
sofware center.
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
DistUpgraded: Fresh install
DistroCodename: focal
DistroRelease: Pop!_OS 20.04
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation HD Graphics 5300 [8086:161e] (rev 09) (prog-if 00 [VGA
controller])
Subsystem: Dell HD Graphics 5300 [1028:066b]
MachineType: Dell Inc. Venue 11 Pro 7140
Package: xorg-server (not installed)
ProcKernelCmdLine:
initrd=\EFI\Pop_OS-70755969-68c4-4da9-982b-a38628a19db0\initrd.img
root=UUID=70755969-68c4-4da9-982b-a38628a19db0 ro quiet loglevel=0
systemd.show_status=false splash
ProcVersionSignature: Ubuntu 5.4.0-7626.30~1588169883~20.04~bbe668a-generic
5.4.30
Tags: focal ubuntu ubuntu
Uname: Linux 5.4.0-7626-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 09/10/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A17
dmi.board.name: 0XMVMH
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA17:bd09/10/2018:svnDellInc.:pnVenue11Pro7140:pvr:rvnDellInc.:rn0XMVMH:rvrA00:cvnDellInc.:ct8:cvr:
dmi.product.name: Venue 11 Pro 7140
dmi.product.sku: 066B
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.101-2
version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.4-2ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2
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
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