T410 only powers up when docked

[Charles Krug]

A year old T410 can only be powered on using the port replicator power button.
Main battery is good, and several AC adapters have been tried.
The TP will occasionally start by the power button, but problem is getting worse.
The workaround is keep the TP in standby when not in use. Is this just a flakey power switch or something else? Thanks,
Jim
T410 2518-4HU
Series 3 PR 4336-10W

[EOMtp]

It sounds like a bad On/Off button, which can be resolved by replacing the keyboard.