added preliminary DPMS support for laptop panels (disabling/enabling backlight). Not for NV11 though, and only if no external DVI panel is connected to a supported laptop. Please note: this feature can possibly be extended for NV11 and external panels if enough feedback (logfile) gets to me. If the driver/screen nolonger works for someone please let me know as well. Bumped version to 0.66.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15051 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/accelerants/nvidia/engine/nv_crtc.c

@@ -570,7 +570,9 @@ status_t nv_crtc_dpms(bool display, bool h, bool v, bool do_panel)
 		/* end synchronous reset because display should be enabled */
 		SEQW(RESET, 0x03);
 
-		if (do_panel && si->ps.tmds1_active && !si->ps.laptop)
+		if (do_panel && si->ps.tmds1_active)
+		{
+			if (!si->ps.laptop)
 			{
 				/* restore original panelsync and panel-enable */
 				uint32 panelsync = 0x00000000;
@@ -594,6 +596,20 @@ status_t nv_crtc_dpms(bool display, bool h, bool v, bool do_panel)
 
 				sprintf(msg, "%s(panel-)", msg);
 			}
+			else
+			{
+				//fixme? linux only does this on dualhead cards...
+				//fixme: see if LVDS head can be determined with two panels there...
+				if (!si->ps.tmds2_active && (si->ps.card_type != NV11))
+				{
+					/* b2 = 0 = enable laptop panel backlight */
+					/* note: this seems to be a write-only register. */
+					NV_REG32(NV32_LVDS_PWR) = 0x00000003;
+
+					sprintf(msg, "%s(panel-)", msg);
+				}
+			}
+		}
 
 		sprintf(msg, "%sdisplay on, ", msg);
 	}
@@ -602,7 +618,9 @@ status_t nv_crtc_dpms(bool display, bool h, bool v, bool do_panel)
 		/* turn screen off */
 		SEQW(CLKMODE, (temp | 0x20));
 
-		if (do_panel && si->ps.tmds1_active && !si->ps.laptop)
+		if (do_panel && si->ps.tmds1_active)
+		{
+			if (!si->ps.laptop)
 			{
 				/* shutoff panelsync and disable panel */
 				DACW(FP_TG_CTRL, ((DACR(FP_TG_CTRL) & 0xcfffffcc) | 0x20000022));
@@ -621,6 +639,20 @@ status_t nv_crtc_dpms(bool display, bool h, bool v, bool do_panel)
 
 				sprintf(msg, "%s(panel-)", msg);
 			}
+			else
+			{
+				//fixme? linux only does this on dualhead cards...
+				//fixme: see if LVDS head can be determined with two panels there...
+				if (!si->ps.tmds2_active && (si->ps.card_type != NV11))
+				{
+					/* b2 = 1 = disable laptop panel backlight */
+					/* note: this seems to be a write-only register. */
+					NV_REG32(NV32_LVDS_PWR) = 0x00000007;
+
+					sprintf(msg, "%s(panel-)", msg);
+				}
+			}
+		}
 
 		sprintf(msg, "%sdisplay off, ", msg);
 	}

src/add-ons/accelerants/nvidia/engine/nv_crtc2.c

@@ -553,7 +553,9 @@ status_t nv_crtc2_dpms(bool display, bool h, bool v, bool do_panel)
 		/* end synchronous reset because display should be enabled */
 		SEQW(RESET, 0x03);
 
-		if (do_panel && si->ps.tmds2_active && !si->ps.laptop)
+		if (do_panel && si->ps.tmds2_active)
+		{
+			if (!si->ps.laptop)
 			{
 				/* restore original panelsync and panel-enable */
 				uint32 panelsync = 0x00000000;
@@ -577,6 +579,19 @@ status_t nv_crtc2_dpms(bool display, bool h, bool v, bool do_panel)
 
 				sprintf(msg, "%s(panel-)", msg);
 			}
+			else
+			{
+				//fixme: see if LVDS head can be determined with two panels there...
+				if (!si->ps.tmds1_active && (si->ps.card_type != NV11))
+				{
+					/* b2 = 0 = enable laptop panel backlight */
+					/* note: this seems to be a write-only register. */
+					NV_REG32(NV32_LVDS_PWR) = 0x00000003;
+
+					sprintf(msg, "%s(panel-)", msg);
+				}
+			}
+		}
 
 		sprintf(msg, "%sdisplay on, ", msg);
 	}
@@ -585,7 +600,9 @@ status_t nv_crtc2_dpms(bool display, bool h, bool v, bool do_panel)
 		/* turn screen off */
 		SEQW(CLKMODE, (temp | 0x20));
 
-		if (do_panel && si->ps.tmds2_active && !si->ps.laptop)
+		if (do_panel && si->ps.tmds2_active)
+		{
+			if (!si->ps.laptop)
 			{
 				/* shutoff panelsync and disable panel */
 				DAC2W(FP_TG_CTRL, ((DAC2R(FP_TG_CTRL) & 0xcfffffcc) | 0x20000022));
@@ -604,6 +621,19 @@ status_t nv_crtc2_dpms(bool display, bool h, bool v, bool do_panel)
 
 				sprintf(msg, "%s(panel-)", msg);
 			}
+			else
+			{
+				//fixme: see if LVDS head can be determined with two panels there...
+				if (!si->ps.tmds1_active && (si->ps.card_type != NV11))
+				{
+					/* b2 = 1 = disable laptop panel backlight */
+					/* note: this seems to be a write-only register. */
+					NV_REG32(NV32_LVDS_PWR) = 0x00000007;
+
+					sprintf(msg, "%s(panel-)", msg);
+				}
+			}
+		}
 
 		sprintf(msg, "%sdisplay off, ", msg);
 	}

src/add-ons/accelerants/nvidia/engine/nv_general.c

@@ -91,7 +91,7 @@ status_t nv_general_powerup()
 {
 	status_t status;
 
-	LOG(1,("POWERUP: Haiku nVidia Accelerant 0.65 running.\n"));
+	LOG(1,("POWERUP: Haiku nVidia Accelerant 0.66 running.\n"));
 
 	/* log VBLANK INT usability status */
 	if (si->ps.int_assigned)