Re: Re: [Dri-devel] Rage128 and Radeon patches
From: Jon Smirl <hidden>
Date: 2003-08-14 22:47:30
--- Benjamin Herrenschmidt <benh@kernel.crashing.org>wrote:
Well... Again, this has to be verified in real life, but my understanding is that the BIOS code, once it has probed the DFP flat panel, will put the EDID data in RAM somewhere within the copy of the BIOS, which is where we then find it... The best thing would still be, of course, to implement full DDC probing in radeonfb like XFree does. This has been on my todolist for a while now, but I lack time. Ben.
Putting the EDID data into the RAM copy will never work the case where there are multiple cards since there is only one copy of the ROM in low RAM. Personally I'd just like to ignore the boot VROM and do everything in the Radeon driver code. But ATI won't give out detailed info on how to read EDID or reset the card with C code from the driver. So instead we end up with the idiotic x86 emulator and doing INT10's in simulated real mode. Maybe someone with more leverage can coax this info out of them..... ===== Jon Smirl jonsmirl@yahoo.com __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com ------------------------------------------------------- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa00100003ave/direct;at.aspnet_072303_01/01