Possible nForce Hard Lockup Workaround

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My friend and I spent many hours yesterday doing testing of the nForce
integrated GPU chipset in Limbo2, attempting to find a workaround that
will prevent a complete hard lock in the RH installer and
redhat-config-xfree86.

This device has this entry in /usr/share/hwdata/pcitable:
0x10de  0x01a0  "Card:NVIDIA GeForce 2 MX (generic)"    "nVidia
Corporation|NV15 [GeForce2 - nForce GPU]"

That card entry chooses the "nv" driver, which causes a complete hard
lockup on this motherboard.  When we attempted to change it to "unknown"
it attempts to use VESA, which also causes a hard lockup.

The only way we were able to make XFree86 work without the closed-source
nVidia drivers was to examine Mandrake 9.0 beta 2.  Their distro uses
"vga=791" as a kernel boot parameter, and fbdev as the driver.  We
tested this in Limbo2 with success.

Is this an acceptable workaround that can be integrated into anaconda
and redhat-config-xfree86 before the next release?  I can supply a
sample working XF86Config and XFree86.0.log.

If this is not an acceptable workaround, then may I recommend changing
this PCI ID to unsupported.

Warren Togami
warren@togami.com
Mid-Pacific Linux Users Group
http://www.mplug.org






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