> the v4l module in XF86Config. If I load v4l, the picture goes
> away. I'm perfectly happy not to load v41, but I'm curious as to why
> it causes the picture not to work. My guess is that my POS video card
> (Rage 128) doesn't support something that's required. Is that correct?
No, it's a bug in the r128 driver. It doesn't set memPhysBase
correctly.
Gerd
---------------------------- cut here --------------------
--- xc/programs/Xserver/hw/xfree86/drivers/ati/r128_driver.c.phys Thu Sep 13
10:16:29 2001
+++ xc/programs/Xserver/hw/xfree86/drivers/ati/r128_driver.c Thu Sep 13 10:19:59
+2001
@@ -817,6 +817,7 @@
from = X_PROBED;
info->LinearAddr = info->PciInfo->memBase[0] & 0xfc000000;
+ pScrn->memPhysBase = info->LinearAddr;
if (dev->MemBase) {
xf86DrvMsg(pScrn->scrnIndex, X_INFO,
"Linear address override, using 0x%08x instead of 0x%08x\n",
--- xc/programs/Xserver/hw/xfree86/drivers/ati/radeon_driver.c.phys Thu Sep 13
10:20:35 2001
+++ xc/programs/Xserver/hw/xfree86/drivers/ati/radeon_driver.c Thu Sep 13 10:21:35
+2001
@@ -1213,6 +1213,7 @@
from = X_PROBED;
info->LinearAddr = info->PciInfo->memBase[0] & 0xfc000000;
+ pScrn->memPhysBase = info->LinearAddr;
if (dev->MemBase) {
xf86DrvMsg(pScrn->scrnIndex, X_INFO,
"Linear address override, using 0x%08x instead of 0x%08x\n",
--- xc/programs/Xserver/hw/xfree86/drivers/v4l/v4l.c.phys Thu Sep 13 11:00:48
2001
+++ xc/programs/Xserver/hw/xfree86/drivers/v4l/v4l.c Thu Sep 13 11:01:04 2001
@@ -207,6 +207,8 @@
static int V4lOpenDevice(PortPrivPtr pPPriv, ScrnInfoPtr pScrn)
{
+ static int first = 1;
+
if (-1 == V4L_FD) {
V4L_FD = open(V4L_NAME, O_RDWR, 0);
@@ -215,7 +217,12 @@
pPPriv->rgb_fbuf.depth = pScrn->bitsPerPixel;
pPPriv->rgb_fbuf.bytesperline = pScrn->displayWidth * ((pScrn->bitsPerPixel +
7)/8);
pPPriv->rgb_fbuf.base = (pointer)(pScrn->memPhysBase +
pScrn->fbOffset);
-
+ if (first) {
+ first = 0;
+ xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, 2,
+ "v4l: memPhysBase=%p\n", pScrn->memPhysBase);
+ }
+
switch (pScrn->bitsPerPixel) {
case 16:
if (pScrn->weight.green == 5) {
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