Ubuntu

Comment 12 for bug 782389

Axel Waggershauser (awagger) wrote :

Hi,

a 'workaround' with some side-effects that worked for me is the "grub2 + setpci"-trick to (re-)enable AHCI (see [1]). The positive side-effect is, you get somewhat better IO-performance (my SSD read throughput went up about 30%). The negative side-effect is, you loose suspend/resume support. To the latter, there seems hope (see [2]).

[1] http://en.gentoo-wiki.com/wiki/Apple_Macbook_Pro#AHCI
[2] https://bugs.launchpad.net/mactel-support/+bug/817017

My main goal was actually not fixing the DVD drive but getting rid of the wasted time during boot while waiting for the ata code to time-out.

 - Axel