I just discovered this issue today when doing a clean install of F17 (32-bit) on an old Sony Vaio PCG-992L laptop. The install worked fine despite the laptop having only 256MB RAM (I used the "nomemcheck" kernel option mentioned in this thread
to get around the 512MB memory requirement). But X failed to start after the reboot; the final error message was:
(EE): Failed to load module "xaa" (module does not exist, 0)
The xaa module is used by the DRI2 3D drivers. This laptop has the integrated i815 graphics chipset, which I found out is not supported by the DRI2 3D drivers in Fedora 17
. The problem is that the intel video driver in F17 (xorg-x11-drv-intel) has DRI2 enabled by default, and there is no separate DRI1 driver any more. The old i810_dri.so driver was part of the mesa-dri-drivers-dri1 package, which is gone in F17. So the only way I could get X to start was by creating an xorg.conf file (/etc/X11/xorg.conf.d/10-local.conf
), with these contents:
Option "DRI" "false"
Option "NoAccel" "true"
The key line is Option "NoAccel" "true"
. Otherwsie X would still refuse to run. This worked perfectly, much better than using the vesa driver (which could only do 8-bit color at 1024x768, and wasn't properly aligned on the screen).
Luckily I knew how to write xorg.conf files, but I can only imagine that some new users might not know how, which would make this a serious problem. Has anyone else encountered this problem, and if so did you find an easier solution? I hope there is an easier way, since otherwise this could be a nasty surprise for people upgrading to F17 from a working F16 system with that video chipset (and others not supported by DRI2).