I have the same problems running Slackware 8 with an Intel graphics card and an HP v70 monitor. I have tried lowering the color depth (you should try that if you havent), which did not work. I have tried different configurations from xfree86setup, xf86config etc, to no avail. I look in mailing list archives and find the same questions EVERYWHERE but with no responses (or responses arent helpful).
log shows fine until the screeninit failure.
has ANYBODY gotten x to work after theyve had this error? ANYONE???