Noise ripped out after the bench verdict (tightly-wrapped unshielded cables move victim SNR only 0.2-0.3 dB, recorded in measurement.md dead ends): noise.go deleted with the noiser, phase clock and panel lane; configureNoise/checkPrivFlag gone so the X710 pair is untouched; console noise column, NOISE links rows and lane colors removed; driverPair rehomed to system.go, carrierUp to phy.go; history anchors to run start (frame-rate sampling and draw-clock roll kept — they fix display latency for every lane); goals/hardware/state/nics docs updated; verified on hardware (20.00G, zero errors, ECD 41m, SNR +7.6)

ui.go

@@ -19,8 +19,6 @@ var (
 	uiCrit   = rgb{0xd0, 0x3b, 0x3b}
 	uiCellOK = rgb{0x0a, 0x5d, 0x0a}
 	uiCellNA = rgb{0x3a, 0x3a, 0x37}
-	uiNoise  = rgb{0x1c, 0x5c, 0xab}
-	uiNoise0 = rgb{0x24, 0x24, 0x23}
 	uiAccent = rgb{0x39, 0x87, 0xe5}
 )
 
@@ -58,10 +56,9 @@ const (
 )
 
 // The panel is the heat matrix: one row per check, columns for now, the last
-// 90 seconds at 5 s a cell, and since reset. Noise rides at the bottom as
-// context — state, not a verdict.
+// 90 seconds at 5 s a cell, and since reset.
 var panelRows = []string{
-	"line rate", "lost", "corrupt", "link", "internal", "corrected", "SNR dB", "noise",
+	"line rate", "lost", "corrupt", "link", "internal", "corrected", "SNR dB",
 }
 
 type rect struct {
@@ -418,7 +415,7 @@ func okOr(bad bool, c rgb) rgb {
 	return uiCellOK
 }
 
-func (d *display) drawRows(v view, phy phyDisplay, measuring bool, nv noiseView,
+func (d *display) drawRows(v view, phy phyDisplay, measuring bool,
 	hv histView, target float64) {
 	nowR := d.nowX + d.nowW
 	resetR := d.resetX + d.resetW
@@ -473,33 +470,6 @@ func (d *display) drawRows(v view, phy phyDisplay, measuring bool, nv noiseView,
 			} else {
 				d.colText(d.text, resetR, y, "-", uiMuted)
 			}
-		case "noise":
-			state := "off"
-			if nv.on {
-				state = "on"
-			}
-			if nv.missing > 0 {
-				d.colMark(nowR, y, markCross, uiCrit)
-			} else {
-				d.colText(d.text, nowR, y, state, uiInk2)
-			}
-			// The lane shows the commanded phase, a pure function of each
-			// slot's parity; only slots the run never lived through are unknown.
-			for k, s := range hv.slots {
-				c := uiCellNA
-				if s.sampled {
-					c = uiNoise0
-					if slotUp(s.seq) {
-						c = uiNoise
-					}
-				}
-				d.heatCell(y, k, c)
-			}
-			if nv.missing > 0 {
-				d.colMark(resetR, y, markCross, uiCrit)
-			} else {
-				d.colMark(resetR, y, markCheck, uiGood)
-			}
 		default:
 			f := -1
 			for j, c := range faultClasses {
@@ -553,14 +523,14 @@ func (d *display) drawFooter(v view, elapsed time.Duration) {
 }
 
 func (d *display) render(v view, elapsed time.Duration, phy phyDisplay,
-	measuring bool, nv noiseView, hv histView, target float64) error {
+	measuring bool, hv histView, target float64) error {
 	fb := d.fb
 	fb.fill(uiBg)
 
 	d.drawHeader(v, phy, hv, measuring, time.Now())
 	d.hairline(d.headerH - 1)
 	d.drawColHeaders()
-	d.drawRows(v, phy, measuring, nv, hv, target)
+	d.drawRows(v, phy, measuring, hv, target)
 	d.drawAxis()
 	d.drawFooter(v, elapsed)
 	d.drawResetButton()