Blank screen when using iPXE

[robinsmidsrod]

I believe this might also be related to the Broadcom NetExtreme (aka tg3) in the Dell machines. There are some patches from Kevin Tran on the mailing-list that haven't been merged to mainline yet. You might have luck with those, but considering you're using undionly.kpxe that doesn't seem to be the issue, because undionly doesn't use the tg3 driver. You might have that issue relating to interrupts being advertised, but never sent. I believe there was another "hack" posted either to the forum or the mailing-list not so long ago (less than a month, I think) that just forcibly said that a certain piece of hardware used polling, regardless of what it advertised. Try to find that post, and report back.