I have a Macmini4,1 (most recent variant) with a Mini DisplayPort connected to a DVI monitor, and HDMI connected directly to a projector. Both monitors are on but black when booting of the ‘Natty Narwhal’ Live CD.
I hold the Option key to get into the EFI boot selector and choose the CD’s EFI boot. Grub loads, and I choose Try Ubuntu from the grub menu. From there on the screen is black.
How can I get Ubuntu to detect my available monitors? Anyone got the same experience?
press f6 and select nomodeset before selecting try Ubuntu and should work fine. The problem is with the nvidia oss driver. once installed you can select the correct nvidia driver.
There is a list of common boot options available at the LiveCd page at help.ubuntu.com.
Of the ones listed there I recommend
xforcevesa
or eventext
.To pass boot options to the kernel at boot time from the menu, press F6 and then Escape.