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I have HP pavilion 2200 series laptop with AMD processor, 1GB RAM, on board nvidia display card. It suddenly cause following problem:
When the adapter is unplugged, the touchpad works correctly and smoothly. But as soon as it is connected, the cursor response badly but when i use external usb mouse, It works fine.
I have check somewhat same question here, It tell me that it is somewhat regarding power supply issue, but it is little different then this one.
I have my original adapter but few days before i have given it to vendor for service due to slow speed Blue Screen issue with OS.
Does anyone know that how to troubleshoot this????
1Honestly, this sounds like a design flaw from HP. You should probably bring it to them. – TheCompWiz – 2011-12-14T17:15:56.060
what is wrong in the question to down vote??? the behavior of hardware is different so i asked this.. if someone faced then explain little about this.. why this happen?? not every HP laptop have such problem i am this stuff since last 7 years.. – Niranjan Singh – 2011-12-14T17:29:10.093
@NiranjanKala: I'm guessing that this is some sort of grounding issue. If possible I would try different power outlets and / or a different power adapter. Also try moving the adapter further away from the laptop in case there is electromagnetic interference. – James P – 2011-12-14T17:42:12.740
I just bought a new adaptor and had same problem. But only in my bedroom and not in living room. Then I realised my new adaptor is 3 pin, my old was 2 pin, so it IS a grounding issue. AND the reason it was working fine in my living room was because I was plugging the adaptor into a BELKIN surge protector, not the main plug socket. As soon as I did the same in my bedroom the problem went away. SO the simplest solution appears to be the cheapest and easiest. Just isolate the ground on the adaptor by plugging into a surge protector. – None – 2013-04-07T15:25:13.117