M4 When pressing "b" or "g" keys on keyboard it returns "bg"

Question

Level 1

4 points

M4 When pressing "b" or "g" keys on keyboard it returns "bg"

I'm facing a problem on the new macbook pro m4 max, when I press "g" or "b" keys on my keyboard I get "bg". The version of mac os is the current latest Sequoia 15.3.2. The computer is relatively new, bough in November 2024

What I have tried:

restarting it with NVRAM Reset via terminal - sudo nvram ResetNVram=1 && sudo reboot
disabling some apps that can modify input such as karabiner elements
booting it in safe mode (same behaviour occurs here)

Has anyone faced this issue? I have read in other posts about this long ago that system update resolved it, what do you think it can be? thanks in advance

MacBook Pro 16″

Posted on Mar 20, 2025 1:36 PM

Reply

Answer 1

Top-ranking reply

Grant Bennet-Alder

Level 10

140,297 points

Mar 20, 2025 3:05 PM in response to t3ntxcles

b and g in the same (slightly diagonal) Column add weight to the suggestion that this is a hardware issue inside the keyboard.

Modern keyboards have a rows sheet and a columns sheet, typically clear plastic, and your key press modifies the electro-magnetic relationship at the junction so that can be detected and registered as a key press.

Reply

Answer 2

Tom Gewecke

Level 10

122,112 points

Mar 20, 2025 2:53 PM in response to t3ntxcles

I can’t think of anything other than damage which could cause that. Try an external keyboard to verify.

Reply

M4 When pressing "b" or "g" keys on keyboard it returns "bg"

Similar questions