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Re: rollback X, SIS671/771

On Thu, Jan 28, 2010 at 09:44:55AM -0500, Stephen Powell wrote:
> According to Ron Lee, Debian package maintainer for the
> svgatextmode package, recent Linux kernels have taken over direct
> control of the video hardware, and recent releases of X now make
> system calls to the kernel to change video modes.  He refers to
> it as "Kernel Modesetting Stuff" (KMS).  I don't know if that is
> any kind of official designation or if that's just his pet name
> for it.  With such a massive migration of code from one place
> to another, we can probably expect some problems in this area.
> Fortunately, it does not appear to affect my system, which uses
> an Nvidia TNT2 chipset.  This change ultimately let to
> svgatextmode being dropped from the archive for Squeeze.  :-(
> Perhaps someone else who knows more about it and is listening
> can elaborate.  I'm not saying that this change is the cause of
> your problem, but it would be the first thing that I would
> suspect.  A similar thing occurred a while back when a lot of
> mouse code migrated from gpm to the kernel itself.

Thank for that information.  I must be missing a crucial list
subscription as I haven't heard any of this.  I'm not complaining
about the instability, merely mentioning my experiences in case
they might be helpful to others.  I still need to research "sd"
driver changes since 2.6.26 to determine if the lifespan of my
ancient HW will only be extended by my own driver hacking skills.
While that sounds like it would be fun, I would first need to
acquire such skills and time to do so is an issue these days.
May the LORD God bless you exceedingly abundantly!

"'So the universe is not quite as you thought it was.
 You'd better rearrange your beliefs, then.
 Because you certainly can't rearrange the universe.'"

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