[Xpert]G550 + G400, overlay problems
Hello everyone. I can't get a dual-head configuration using an AGP G550 and a PCI G400 working under either XFree 4.2.0 or 4.2.1 with either the XFree mga driver or the Matrox mga driver. (I am also asking Matrox about this.) The system in question is a mostly-stock Red Hat 7.3 installation, with the XFree 4.2.1 binary upgrade installed atop the Red Hat XFree 4.2.0 packages. Some things I've tried: 1) In the bios, one card is anointed the primary display adapter. Whichever card so anointed works fine; the other does not produce any video in X, with no errors reported (it is like the card is switched off). 2) I tried moving the PCI card to a different slot, which made no difference in any perceptible way (PCI id stayed the same). 3) The cards don't work in any color depth that I tried -- I need overlay support for this workstation because we have some brain-dead apps that require PseudoColor, but it won't even work with both displays in 8 bit, Xinerama or no, DRI or no (which shouldn't work anyway, but I did explicitly turn it off). 4) Using the Matrox drivers, both displays turn on but the secondary has some serious psychedelic visuals on it and the first has some mouse pointer issues. Personally, I'd rather use the XFree drivers if they can be made to work. Does anyone have any experience getting two of these cards to work together? Perhaps the Red Hat kernel is causing problems? Any advice, suggestions, or questions appreciated. Thanks in advance, Matt Mitchell Systems Programmer Geophysical Development Corporation ___ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
Re: [Xpert]G550 + G400, overlay problems
Well, I can't even get the G550 to work alone, much less along with another card. I also see this screen distortion in dual-head mode. I believe it is due to the Matrox driver using incorrect timings on the second head, but I don't have the hours and hours to spend tweaking the modelines to try and get it working. And I still haven't found anyone who can explain to me why DVI output works without the HAL module. According to both the XFree86 and Matrox documentation, DVI shouldn't work at all without HAL. And when I do use HAL, neither the panel nor the CRT gets a good signal. Basically, if I do what the manual says, nothing works. Only by doing what the manual specifically says DOES NOT WORK do I actually get the thing to work. Oh, and in single-head mode, the display (DVI) blanks to black every couple of seconds. More often when a lot seems to be changing on the screen. I believe this is probably also related to incorrect timings. And yes, I've tried NoCompositeSync and it makes no difference whatsoever. If anyone out there has the G550 working, driving a DVI panel without this annoying blanking, can you please post your modelines to the list? I think having the correct modelines could be the ticket to getting dual-head to work with the HAL driver. Thanks, Scott Long 4) Using the Matrox drivers, both displays turn on but the secondary has some serious psychedelic visuals on it and the first has some mouse pointer issues. Personally, I'd rather use the XFree drivers if they can be made to work. ___ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
