[KLUG Members] RH7.2 X problem

[Bryan J. Smith]

On Wed, 2002-02-27 at 13:53, Tony Gettig wrote:
> When I run Xconfigurator, it finds the video adapter (onboard AGP SIS),
> then it exits Xconfigurator with a segmentation fault. No detail or
> stack info, no clue as to why. Argh.

I assume the chipset is using UMA (unified memory architecture) to avoid
having to put dedicated VRAM memory on-board.

As such, you need to _reserve_ at the LILO prompt the amount of memory
reserved in the BIOS for VRAM.

E.g., if you have 256MB or RAM, and the video is setup for 16MB:
   LILO:  linux mem=240MB

You might want to "shave off" another 1-2MB "just in case" (e.g., 238MB)
some is used for shadow RAM or other.

> One more thing: would it be worth recompiling the kernel to take
> advantage of the Athlon CPU? Isn't the stock kernel optimized for i386?

RedHat 7.1+ includes Athlon-optimized RPMs and they are installed.

BTW, don't forget to use the "mem=nopentium" option as well to prevent
the Athlon from using 4MB paging (instead of 4KB paging).  Long story on
that one, but the stock 2.4.18 kernel is supposed to have the
workaround.

-- Bryan

-- 
MSWord is not even a "proprietary standard."  That would
require it to be fully compatible with itself, let alone
other products from the same vendor (e.g., MSPublisher).
--------------------------------------------------------
Bryan J. Smith, Engineer       mailto:b.j.smith@ieee.org
SmithConcepts, Inc.         http://www.SmithConcepts.com