Hi Abraham, You wrote,
> Your problem is that DDC is failing, so it can't figure out what modes your > monitor / lcd is capable of. You'll have to hardcode the modelines in your > XF86Config. Here is some which I have made especially for testing the 830M > driver. Thanks for the modelines, but I don't believe that they are the problem. In fact, I tried to use the modelines that you sent, but it didn't change the error message at all (in fact, it didn't have any effect on the log file). AFAIK, XFree86 these days comes with a set of default modelines already, so that it is not always necessary to have them explicitly in the configuration file. The other reason for me to believe that the modelines are not the problem is that in 8pp in three different resolutions as well as in 16bpp with 640x480 the system works perfectly fine without me having to provide explicit modelines. (I don't want to rule out that I need explicit modelines, but at least they don't seem to be the only problem.) Since my original message, I have done a little more research and have come with a conjuncture as to what might be the cause of the problem. According to Intel's support page http://support.intel.com/support/graphics/intel830m/tti004.htm the i830M manages two sorts of video memory. One of those being what they call "legacy VGA/SVGA memory." The amount of memory allocated as legacy VGA/SVGA memory apparently depends on the BIOS and can be 512kB, 1MB, or 8MB. (Intel also suggest that this should be adjustable in the BIOS setup, but, as far as I can see, it isn't in the Dell C400.) At boot time, I get the following messages in `dmesg': agpgart: Detected an Intel 830M Chipset. agpgart: detected 1024K stolen memory. >From a quick look at the agpgart source code, it seems as if this "stolen memory" is the same that Intel calls "legacy VGA/SVGA memory." If that is true, the chip may just have allocated to little memory to run in high-resolution with anything more than 8bpp. The question then is, how can I get the i830 to allocate 8MB instead of 1MB? I would suspect that it requires a BIOS call at boot time. If you have a i830M-based machine at hand, I would be grateful if you could check which amount of "stolen memory" the agpgart module reports on your hardware. Thanks, Manuel _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
