Messages in this thread | | | From | "nope nope" <> | Subject | Found cause of NM256 freezes | Date | Wed, 26 Jul 2000 16:40:48 GMT |
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Normally I'd go straight to the writer of the driver with this problem but he's anonymous, soo... I've been getting the same hard freezes as a lot of people who are trying to use Neomagic nm256 audio. What's causing the lockups, at least on my Dell Latitude LS, is the ac97_codec driver trying to read (not write) a few standard AC97 registers. In particular anytime the AC97_RESET register (defined in ac97.h as 0x00) is accessed the machine instantly crashes. This also occurs for several other registers. Does anyone have any idea why this might be occuring? It's not like the driver is trying to _write_ to any memory - at least then the crashes would make a little bit of sense. Just reading those registers kills it. The Windows drivers for this chip work fine; I wish I knew a bit more about how to delve into the interals of Windows so I could see just how that driver finesses the AC97 registers without locking the machine. Is anyone aware of any sort of conflict that I'm missing here? Advice on how to proceed? Thanks!
John jctdrix@hotmail.com ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com
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