xsrc/42262: Thinkpad T500 Intel GM45 Express X doesn't like i915drm

[spz%serpens.de@localhost]

>Number:         42262
>Category:       xsrc
>Synopsis:       Thinkpad T500 Intel GM45 Express X doesn't like i915drm
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    xsrc-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Nov 04 09:55:00 +0000 2009
>Originator:     S.P.Zeidler
>Release:        NetBSD 5.99.21
>Organization:
        dis-
>Environment:
System: NetBSD tucana.1st.de 5.99.21 NetBSD 5.99.21 (TUCANA) #5: Wed Nov 4 
09:47:53 CET 2009 
spz%tucana.1st.de@localhost:/home/netbsd/obj/amd64/home/netbsd/src/sys/arch/amd64/compile/TUCANA
 amd64
Architecture: x86_64
Machine: amd64
>Description:
        The X server on my Thinkpad T500 (containing a onboard
        Intel GM45 Express and a ATI Mobility Radeon HD 3650 (ChipID = 0x9591)
        that hasn't yet worked) crashes when i915drm is available in the
        kernel and it has not been de-configured in xorg.conf.

        Find in http://ftp.NetBSD.org/pub/NetBSD/misc/spz/Thinkpad_T500_X/
        xorg.conf.new                   output from X -configure
        xorg.conf.workaround            an xorg.conf where X will not crash
        ./no_i915drm/TUCANA             kernel config (no i915drm)
        ./no_i915drm/Xorg.0.log         watch the X server not crash
        ./no_i915drm/dmesg              what the kernel saw
        ./with_debug/TUCANA             kernel config
        ./with_debug/Xorg.0.log         watch the X server kill itself
        ./with_debug/Xorg.core          the core file
        ./with_debug/dmesg              what the kernel saw

>How-To-Repeat:
        build GENERIC, start X without config (on the right machine)
>Fix:
        no fix, but two workarounds: disable drm/DRI in xorg.conf or
        i915drm in kernel

>Unformatted:
        source date 20091102