Touchpad in Lenovo ThinkPad behaves slows and doesn't respond quick as it use to !!!

I think I may have found the culprit. In my case, it was a cheap USB-C charger causing the issues.

So, I recently purchased a used Thinkpad E15, it came with an off brand amazon charger, and I was having the same issues as others here where the mouse would sporadically become sluggish. Well, I tried a different Lenovo charger and it ended up not happening again. Something about the Amazon charger was causing this issue. Probably related to a ground loop not being adequately wired inside the charger, per what I read in some other forums.

Anyways, try that out and see if it fixes things. It did for me.

I have since figured out that's the problem only happens when the laptop is plugged in. Same for you? Also can you fix the problem temporarily by pressing the trackpad on off button twice?

Exactly the same problem.

ThinkPad p1 gen4.

Touchpad SUDDENLY starts to be slow, this also affects scrolling. But In the same way, if you leave touchpad alone it suddenly stops being slow and returns to normal... The problem started after one of the Windows updates but I don’t remember which one. Maybe driver reinstalling will help, but can anyone explain to me how to reinstall driver for the touchpad If in "mouse properties" I can’t find any drivers other than ELAN, I2C-HID device and USB input device. All drivers are up to date

Waiting for an answer. Thx

Thx mod! Hi I also have a problem with my touchpad and it sounds like it's the exact same problem you were having. Did you manage to eventually fix it? I also found a youtube video by someone else with the exact same problem too.

My problem is the following: for at least half a year now, but not triggered by anything at all that I can think of having done to my laptop (Lenovo Yoga 530 14-IKB, on that note, which exact model do you have? I want to look up if we have the same motherboard and/or touchpad unit), my touchpad will start lagging massively at random moments. Like you, I'm able to fix it for a while by restarting, but I discovered that it also gets resolved by closing and opening the lid, but only temporarily. It even feels like after attempting that fix, the problem comes back a little more quickly than after a reboot, but that could just be me imagining it. The same is true for disabling and re-enabling the touchpad by using the function on the F6 key. The problem also spontaneously resolves if I wait long enough, but then I think it again also comes back more quickly. The problem concerns the touchpad, but not my USB mouse.

I have tried:

• Disabling and re-enabling relevant devices in devmgr, didn't fix
• Uninstalling relevant devices in devmgr (so they get automatically re-installed upon reboot), didn't fix
• Looking for drivers to roll back, to no avail
• Made dumps of the listed processes/services/things in Task Manager etc, both when the problem is happening and when it isn't, then comparing those lists, no clues
• Endlessly look for any driver updates that might help, in several sources, but nothing found (also, since this problem started happening 'spontaneously' for me, I would expect that if it were caused by a faulty driver update, then I would somehow also (semi-)automatically receive another update that fixed it, if such update existed)

Still need to try:

• Using some other OS for long enough to trigger the problem (or not have the problem happen; that's the question), though I suspect it won't happen, meaning the drivers (or hardware) are the problem and we will be F'd by Lenovo's refusal to fix it because I certainly won't switch to Linux permanently
• Using W10 in safe boot for long enough to trigger the problem
• Disabling a lot of things to see if it prevents the problem or not

But all of these things are inherently super time and/or disk space consuming so I haven't yet

I have since figured out that's the problem only happens when the laptop is plugged in. Same for you? Also can you fix the problem temporarily by pressing the trackpad on off button twice?

So this exact problem is ALSO happening to me, I also noticed a lot of other issues related to being plugged in as well including camera issues while in a video chat on Discord, Facebook, or Teams, latest drivers installed, BIOS updated, etc. ONLY happens while plugged in. I've got the P72 in particular, any correlation on model/part numbers that we know of?