Hi all!

I have a IBM t22 and a x30 with same problem. The laptops only work with external display. I replace, the inverters the panels and the flex cables, but still don't work. :/ Any idea?

Thanks!

Maybe stuck or broken lid switch, or maybe open fuse on motherboard, or some other motherboard defect. Or something else entirely.

Oh! And, welcome to the forum. Hope you find it helpful.

I've read so far only, but the forum has helped a lot!
Thanks for the ideas. I look at the fuses and the switch!