Re: [XFree86] RESOLVED: I830WaitLpRing() lockup

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Eric Anholt writes:
 > I haven't been following this too closely, but was this happening only
 > on BSDs?  The VBE thing stuck out in my mind, as there was just an issue
 > in DRI (the radeon mergedfb changes) where using the generic int10
 > emulation caused the driver to crash, while the linux-specific one
 > didn't.  I don't think it got tracked down and a later change fixed it,
 > but might there be general problems with the generic int10 emulation?  I
 > know many FreeBSD systems get warnings in the logs about "Bad V_BIOS
 > checksum."  Would any of this be significant?

It would be interesting to know if you would get the 'Bad V_BIOS checksum'
message under linux, too. If not it points to the BIOS map/read
functions which appearantly read/map parts of the BIOS wrong.
The checksum is calculated before any BIOS code is executed, it is
a non-fatal error (it used to be fatal but we found out that not all
BIOSes have sane checksums) and may (but not necessaryly does) point
to a problem.
Since on Linux both the generic and the system specific int10 modules
are available Linux users could test this very easily.
The generic module is used when the linux-specific one is moved away
(mv /usr/X11R6/lib/modules/linux/libint10.a /tmp).


Egbert.

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