I bought a new laptop from dell a couple of months which is Dell Latitude 3510. It came with Ubuntu 18.04, I've removed it and installed Ubuntu 20.04 LTS.
The problem is that touchpad keeps stopping suddenly for around 5 to 10 seconds and then works again on its own. It also may suddenly increase its speed and stop scrolling for no reason, and when I try to turn off the touchpad it doesn't turn off. The only solution to solve the problem was to suspend Ubuntu and then open it again.
The keyboard also does random things like writing keywords on its own and move the cursor while writing.
I know there are many questions here regarding similar issues. But believe me I tried every single answer here and I was searching for more than 1 month. I posted this question because I really didn't find any solution.
When I run xinput list it outputs:
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ DELL09ED:00 27C6:01E0 Mouse id=10 [slave pointer (2)]
⎜ ↳ DELL09ED:00 27C6:01E0 Touchpad id=11 [slave pointer (2)]
⎜ ↳ PS/2 Generic Mouse id=15 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Video Bus id=6 [slave keyboard (3)]
↳ Video Bus id=7 [slave keyboard (3)]
↳ Power Button id=8 [slave keyboard (3)]
↳ Integrated_Webcam_HD: Integrate id=9 [slave keyboard (3)]
↳ Intel HID events id=12 [slave keyboard (3)]
↳ Dell WMI hotkeys id=13 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard
Then after running input list-props "DELL09ED:00 27C6:01E0 Touchpad":
Device 'DELL09ED:00 27C6:01E0 Touchpad':
Device Enabled (179): 1
Coordinate Transformation Matrix (181): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Accel Profile (312): 1
Device Accel Constant Deceleration (313): 2.500000
Device Accel Adaptive Deceleration (314): 1.000000
Device Accel Velocity Scaling (315): 12.500000
Synaptics Edges (333): 76, 1843, 58, 1021
Synaptics Finger (334): 25, 30, 0
Synaptics Tap Time (335): 180
Synaptics Tap Move (336): 96
Synaptics Tap Durations (337): 180, 180, 100
Synaptics ClickPad (338): 1
Synaptics Middle Button Timeout (339): 0
Synaptics Two-Finger Pressure (340): 282
Synaptics Two-Finger Width (341): 7
Synaptics Scrolling Distance (342): 44, 44
Synaptics Edge Scrolling (343): 0, 0, 0
Synaptics Two-Finger Scrolling (344): 1, 1
Synaptics Move Speed (345): 1.000000, 1.750000, 0.090868, 0.000000
Synaptics Off (346): 0
Synaptics Locked Drags (347): 0
Synaptics Locked Drags Timeout (348): 5000
Synaptics Tap Action (349): 2, 3, 0, 0, 1, 3, 0
Synaptics Click Action (350): 1, 3, 0
Synaptics Circular Scrolling (351): 0
Synaptics Circular Scrolling Distance (352): 0.100000
Synaptics Circular Scrolling Trigger (353): 0
Synaptics Circular Pad (354): 0
Synaptics Palm Detection (355): 1
Synaptics Palm Dimensions (356): 10, 200
Synaptics Coasting Speed (357): 20.000000, 50.000000
Synaptics Pressure Motion (358): 30, 160
Synaptics Pressure Motion Factor (359): 1.000000, 1.000000
Synaptics Resolution Detect (360): 1
Synaptics Grab Event Device (361): 0
Synaptics Gestures (362): 1
Synaptics Capabilities (363): 1, 0, 0, 1, 1, 0, 0
Synaptics Pad Resolution (364): 13, 18
Synaptics Area (365): 0, 0, 0, 0
Synaptics Soft Button Areas (366): 959, 0, 884, 0, 0, 0, 0, 0
Synaptics Noise Cancellation (367): 11, 11
Device Product ID (305): 10182, 480
Device Node (304): "/dev/input/event7"
