diff options
Diffstat (limited to 'src/i810_driver.c')
| -rw-r--r-- | src/i810_driver.c | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/src/i810_driver.c b/src/i810_driver.c index 47aa05ea..b4732951 100644 --- a/src/i810_driver.c +++ b/src/i810_driver.c @@ -1732,6 +1732,21 @@ I810SetMode(ScrnInfoPtr pScrn, DisplayModePtr mode) i810Reg->ExtHorizBlank = (((mode->CrtcHBlankEnd >> 3) - 1) & 0x40) >> 6; /* + * the KGA fix in vgaHW.c results in the first + * scanline and the first character clock (8 pixels) + * of each scanline thereafter on display with an i810 + * to be blank. Restoring CRTC 3, 5, & 22 to their + * "theoretical" values corrects the problem. KAO. + */ + pVga->CRTC[3] = (((mode->CrtcHBlankEnd >> 3) - 1) & 0x1F) | 0x80; + pVga->CRTC[5] = ((((mode->CrtcHBlankEnd >> 3) - 1) & 0x20) << 2) + | (((mode->CrtcHSyncEnd >> 3)) & 0x1F); + pVga->CRTC[22] = (mode->CrtcVBlankEnd - 1) & 0xFF; + + i810Reg->ExtHorizBlank = vgaHWHBlankKGA(mode, pVga, 7, 0); + vgaHWVBlankKGA(mode, pVga, 8, 0); + + /* * The following workarounds are needed to get video overlay working * at 1024x768 and 1280x1024 display resolutions. */ @@ -1799,18 +1814,6 @@ I810ModeInit(ScrnInfoPtr pScrn, DisplayModePtr mode) if (!vgaHWInit(pScrn, mode)) return FALSE; - /* - * the KGA fix in vgaHW.c results in the first - * scanline and the first character clock (8 pixels) - * of each scanline thereafter on display with an i810 - * to be blank. Restoring CRTC 3, 5, & 22 to their - * "theoretical" values corrects the problem. KAO. - */ - pVga = &VGAHWPTR(pScrn)->ModeReg; - pVga->CRTC[3] = (((mode->CrtcHBlankEnd >> 3) - 1) & 0x1F) | 0x80; - pVga->CRTC[5] = ((((mode->CrtcHBlankEnd >> 3) - 1) & 0x20) << 2) - | (((mode->CrtcHSyncEnd >> 3)) & 0x1F); - pVga->CRTC[22] = (mode->CrtcVBlankEnd - 1) & 0xFF; pScrn->vtSema = TRUE; |