Re: SiS630S FrameBuffer & LCD

From: Robert Vojta (robert@v0jta.net)
Date: Wed Oct 24 2001 - 02:54:23 EST

> SiS actually had a much updated frame buffer console driver that never made
> it into the kernel (stuff needed fixing and I never got a reply so it
> dropped out of the tree)

  AFAIK the new informations from SiS are still doesn't working. I have this
SiS630 chipset too and I must use VesaFB for correct chipset initialization
and correct settings. VesaFB must have the same resolution and bpp which
I want in X. And I can use accelerated functions in X (not FB) by ugly hack
in sis_driver.c like, so it leaves settings from VesaFB and functions like
SiSPreSetMode(pScrn) and SiSSetMode(xf86Screens[scrnIndex], mode) are
skipped. I have this driver (precompiled) available on my pages
http://www.v0jta.net/gericom/gericom.php3?&menu=4#vga with all steps how
to make this chipset working with linux. 

---
XFree86-4.1.0/xc/programs/Xserver/hw/xfree86/drivers/sis/sis_driver.c.orig
Fri Jul 13 20:42:56 2001
+++
XFree86-4.1.0/xc/programs/Xserver/hw/xfree86/drivers/sis/sis_driver.c
@@ -1210,7 +1210,9 @@
     vgaHWRestore(pScrn, vgaReg, VGA_SR_MODE);

     if ((pSiS->Chipset == PCI_CHIP_SIS300) ||
+#if 0
             (pSiS->Chipset == PCI_CHIP_SIS630) ||
+#endif
             (pSiS->Chipset == PCI_CHIP_SIS540)) {
         SiSPreSetMode(pScrn);
         SiSSetMode(pScrn, pScrn->currentMode);
@@ -1550,7 +1552,9 @@
     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
     SISPtr pSiS = SISPTR(pScrn);
     if ((pSiS->Chipset == PCI_CHIP_SIS300) ||
+#if 0
             (pSiS->Chipset == PCI_CHIP_SIS630) ||
+#endif
             (pSiS->Chipset == PCI_CHIP_SIS540))
         return SiSSetMode(xf86Screens[scrnIndex], mode);
     else
@@ -1661,7 +1665,9 @@

     /* Should we re-save the text mode on each VT enter? */
     if((pSiS->Chipset == PCI_CHIP_SIS300) ||
+#if 0
             (pSiS->Chipset == PCI_CHIP_SIS630) ||
+#endif
             (pSiS->Chipset == PCI_CHIP_SIS540)) {
         SiSPreSetMode(pScrn);
         if (!SiSSetMode(pScrn, pScrn->currentMode))

                                                            --Robert V0jta

-- 
    Robert Vojta <vojta at {pharocom.net - work | v0jta.net - private}>
          GPG: ID 1024D/A0CB7953            http://www.v0jta.net/
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This archive was generated by hypermail 2b29 : Wed Oct 31 2001 - 21:00:20 EST