diff options
Diffstat (limited to 'src/nv_dac.c')
| -rw-r--r-- | src/nv_dac.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/src/nv_dac.c b/src/nv_dac.c index 769179b..f62db58 100644 --- a/src/nv_dac.c +++ b/src/nv_dac.c @@ -37,10 +37,38 @@ |* *| \***************************************************************************/ -/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/nv/nv_dac.c,v 1.41 2004/10/05 21:23:03 mvojkovi Exp $ */ +/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/nv/nv_dac.c,v 1.44 2004/12/09 00:21:04 mvojkovi Exp $ */ #include "nv_include.h" +static int +NVDACPanelTweaks(NVPtr pNv, NVRegPtr state) +{ + int tweak = 0; + + if(pNv->usePanelTweak) { + tweak = pNv->PanelTweak; + } else { + /* begin flat panel hacks */ + /* This is unfortunate, but some chips need this register + tweaked or else you get artifacts where adjacent pixels are + swapped. There are no hard rules for what to set here so all + we can do is experiment and apply hacks. */ + + if(((pNv->Chipset & 0xffff) == 0x0328) && (state->bpp == 32)) { + /* At least one NV34 laptop needs this workaround. */ + tweak = -1; + } + + if((pNv->Chipset & 0xfff0) == 0x0310) { + tweak = 1; + } + /* end flat panel hacks */ + } + + return tweak; +} + Bool NVDACInit(ScrnInfoPtr pScrn, DisplayModePtr mode) { @@ -185,6 +213,8 @@ NVDACInit(ScrnInfoPtr pScrn, DisplayModePtr mode) { nvReg->scale |= (1 << 8) ; } + nvReg->crtcSync = pNv->PRAMDAC[0x0828/4]; + nvReg->crtcSync += NVDACPanelTweaks(pNv, nvReg); } nvReg->vpll = nvReg->pll; @@ -192,6 +222,9 @@ NVDACInit(ScrnInfoPtr pScrn, DisplayModePtr mode) nvReg->vpllB = nvReg->pllB; nvReg->vpll2B = nvReg->pllB; + VGA_WR08(pNv->PCIO, 0x03D4, 0x1C); + nvReg->fifo = VGA_RD08(pNv->PCIO, 0x03D5) & ~(1<<5); + if(pNv->CRTCnumber) { nvReg->head = pNv->PCRTC0[0x00000860/4] & ~0x00001000; nvReg->head2 = pNv->PCRTC0[0x00002860/4] | 0x00001000; |