The genericx86 image should work on Emenlow but does not anymore. I believe it used to work initially but now, when attempting to live boot the image or install it from USB, the display turns off. This should be fixed in order to be able to automate genericx86 image testing as Emenlow is one of the few (32 bit) hardware targets with serial that can support the genericx86 image.
gma500 driver may be broken
Cristian reported that emenlow with the -noemgd machine is also broken, but the emgd machine works, which supports the argument that gma500 is broken.
Testing this with fido and it appears to be working, I have looked at the logs and it appears to be using the FBDEV as it has the uvesafb kernel driver
Verified on master: d4585fa23d56a58c583ee33db067a23177a936b1