Charging on powernet messes up sensitivity of touchscreen

[Guest wouterbeer]

Maybe I used wrong tags, but couldn't find a topic specifying the bug I face.

--> When my phone is charging, the touch screen is not working normal anymore. It feels like it's totally lagging and e.g. when pressing a letter on keyboard there appear 2 or 3 letters.

When connected with USB cable to computer this is not the case. Only when connected to powernet..

I'm, on B934 now, but had the problem on all ROMs, including stock.

Any suggestions?

[Guest belmet]

the charger for the g300 seems to be very noisy - this can affect the accuracy of capacative touch screens. my touch screen works better if I use a samsung charger which must have better noise suppression and likewise a pc psu will have good noise suppression which is why you don't see the problem when it is plugged into your pc. try another charger and see if it makes a difference.

[Guest tcpaulh]

I get this with most ac chargers. Would be nice if the g300 had better power regulation

[Guest belmet]

tcpaulh the regulation in the phone would not make any difference if there is bad transients in the supply voltage. typically a phone smps will run at at 20 khz which is too high a frequency to reject 50hz noise without significant low pass filtering.

[Guest tcpaulh]

Interesting, thanks belmet. Can you come round and stop my lights from buzzing by any chance? ;-)