Touchpad going crazy when charging.

[Haswellx86]

I have an old Dell laptop lying around, and whenever I keep it on charging, the touchpad gets extremely inaccurate, until I remove the adapter. Does anybody face this same issue on older laptops and is there a way to fix it?

[DoctorNick]

1 hour ago, NvidiaFirePro6900XXTX3DPRO said:

I have an old Dell laptop lying around, and whenever I keep it on charging, the touchpad gets extremely inaccurate, until I remove the adapter. Does anybody face this same issue on older laptops and is there a way to fix it?

Have you tried to use a grounded outlet?

[Tom_nerd]

2 hours ago, NvidiaFirePro6900XXTX3DPRO said:

I have an old Dell laptop lying around, and whenever I keep it on charging, the touchpad gets extremely inaccurate, until I remove the adapter. Does anybody face this same issue on older laptops and is there a way to fix it?

stupid question, but does a USB mouse work?

[Haswellx86]

8 hours ago, DoctorNick said:

Have you tried to use a grounded outlet?

Not to much into electrical stuff, so what the heck is that?

[Haswellx86]

7 hours ago, Tom_nerd said:

stupid question, but does a USB mouse work?

Yes, a stupid question indeed. Mouse works but the existence of a touchpad on a laptop matters.

[powertoys]

Grounding issue or current leakage. I've had this with a very old Latitude.

[Haswellx86]

@DoctorNick@Tom_nerd@powertoys

I have heard that is sometimes happens in older laptops and in mobile phones too because the touchpad/touchscreen is located right above the battery, and the battery while charging can interfere with the touchpad/touchscreen. So....

[DoctorNick]

22 minutes ago, NvidiaFirePro6900XXTX3DPRO said:

@DoctorNick@Tom_nerd@powertoys

I have heard that is sometimes happens in older laptops and in mobile phones too because the touchpad/touchscreen is located right above the battery, and the battery while charging can interfere with the touchpad/touchscreen. So....

Yes and therefore you must ground the PSU  https://en.wikipedia.org/wiki/Ground_(electricity)

[Haswellx86]

4 hours ago, DoctorNick said:

Yes and therefore you must ground the PSU  https://en.wikipedia.org/wiki/Ground_(electricity)

tldr. What do i do then?

[DoctorNick]

12 minutes ago, NvidiaFirePro6900XXTX3DPRO said:

tldr. What do i do then?

Hope this makes sense. Check if your adapter has 3 legs, if yes, use a grounded outlet (where you plugin the power supply in the wall)

[Haswellx86]

@DoctorNickYes I do have 3 pins, and I already to plug in the connector into the wall directly.

[DoctorNick]

3 hours ago, NvidiaFirePro6900XXTX3DPRO said:

@DoctorNickYes I do have 3 pins, and I already to plug in the connector into the wall directly.

ok but the wall outlet isn't grounded then  

[Haswellx86]

@DoctorNickSo what exactly is a grounded outlet in the wall?

[Tom_nerd]

On 1/27/2023 at 9:31 AM, NvidiaFirePro6900XXTX3DPRO said:

@DoctorNickSo what exactly is a grounded outlet in the wall?

Its an outlet that has 3 pins. One of which is reserved for a grounding pin.