Bug 15340

Summary: CONFIG_AGP help text should tell about modules order issue
Product: Other Reporter: Daniele C. (legolas558)
Component: ModulesAssignee: other_modules
Status: RESOLVED OBSOLETE    
Severity: normal CC: alan, jbarnes
Priority: P1    
Hardware: All   
OS: Linux   
URL: http://bugzilla.kernel.org/show_bug.cgi?id=15248#c28
Kernel Version: 2.6.33-rc8 Tree: Mainline
Regression: No

Description Daniele C. 2010-02-17 11:30:24 UTC
If agp module is not loaded before drm/i915 driver modules, serious kernel issues will happen, most notably:

1) display turned OFF
2) frantic kernel crash with no keyboard/network/sysrq availability when starting Xorg (buffers are neither flushed to disk)

I think a notice should be added to the help text shown in menuconfig regarding the AGP drivers

See also J.Barnes' comment (URL)
Comment 1 Daniele C. 2010-03-15 12:56:20 UTC
Downstream issue at Arch Linux: http://bugs.archlinux.org/task/18690