XFree 4.0 dual monitor on AGP G4

Michel Dänzer daenzer at relog.ch
Thu Apr 27 00:16:36 EST 2000

Kostas Gewrgiou wrote:

> the second r128 will never be able to pick the right device
> (/dev/fb1 here) the BusID line is more or less ignored in the fbdev
> case so the second driver will open /dev/fb0 which will result
> in a kernel crash.

Doesn't r128 support the "fbdev" option to specify the framebuffer device?

Here's the important code from the glint driver:

	for (i = 0; i < numDevSections; i++) {
 	    dev = xf86FindOptionValue(devSections[i]->options,"fbdev");
 	    if (devSections[i]->busID) {
 		if (!xf86CheckPciSlot(bus,device,func))
 	    if (fbdevHWProbe(NULL,dev,&name)) {
 		ScrnInfoPtr pScrn;

  				/* Check for pm2fb */
 		if (strcmp(name,"Permedia2")) continue;
 		foundScreen = TRUE;
 		pScrn = NULL;

 		if (devSections[i]->busID) {
 		    /* XXX what about when there's no busID set? */
 		    int entity;
 		    entity = xf86ClaimPciSlot(bus,device,func,drv,
 		    pScrn = xf86ConfigPciEntity(pScrn,0,entity,
 		    if (pScrn)
  			xf86DrvMsg(pScrn->scrnIndex, X_CONFIG,
  				   "claimed PCI slot %d:%d:%d\n",bus,device,func);
 		} else {


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