niri: desk-2 panels landscape, HDMI to the left of the laptop

Frank asked for normal rotation on both PM1601 panels and the HDMI-A-1
panel to the left of eDP-1. rotation drops 90 -> normal, so each panel
goes 1200x1920 -> 1920x1200 and the absolute x of everything to its
right moves with it: HDMI-A-1 now x=0, eDP-1 x=1920 (y=60, centred
against the taller panels), DP-2 x=3840. modes unchanged.

dotfiles/zz-blankpad/niri/.config/niri/cfg/desk-2-portable.kdl

@@ -1,5 +1,5 @@
 // ────────────── Desk Profile: portable (second desk) ──────────────
-// Two PM1601 16" panels in portrait beside the laptop panel.
+// Two PM1601 16" panels, landscape, flanking the laptop panel.
 // Applied by symlinking this file to cfg/display.kdl (see scripts/desk.sh).
 // Panels are keyed by EDID identity, NOT by connector name — connector names
 // reshuffle between docks; identity travels with the panel. Long names copied
@@ -9,19 +9,19 @@
 // requires: PNP(XYM) PM1601 0000000000000
 // requires: PNP(XYM) PM1601 demoset-1
 //
-// Layout (logical, y grows downward; the two panels form one 2400x1920 band):
+// Layout (logical, y grows downward; three 1920-wide columns):
 //
-//   ┌──────────────┬──────────┬──────────┐
-//   │              │  PM1601  │  PM1601  │
-//   │              │  rot 90  │  rot 90  │
-//   │   eDP-1      │ 1200x1920│ 1200x1920│
-//   │  1920x1080   │  (DP-2)  │(HDMI-A-1)│
-//   │              │          │          │
-//   └──────────────┴──────────┴──────────┘
-//    x=0,y=420      x=1920,0   x=3120,0
+//   ┌──────────┬──────────────┬──────────┐
+//   │  PM1601  │              │  PM1601  │
+//   │ 1920x1200│   eDP-1      │ 1920x1200│
+//   │(HDMI-A-1)│  1920x1080   │  (DP-2)  │
+//   │          │              │          │
+//   └──────────┴──────────────┴──────────┘
+//    x=0,y=0     x=1920,y=60   x=3840,y=0
 //
-// The laptop sits 420 px down so its centre (960) meets the centre of the
-// 1920-tall panel band — no dead corner where the cursor crosses.
+// HDMI-A-1 sits to the LEFT of the laptop by request (2026-10-30); DP-2 stays
+// on its right. The laptop is 60 px down so it is centred against the taller
+// 1200 px panels — no dead corner where the cursor crosses.
 // Modes are the panels' reported preferred modes, copied verbatim: niri
 // matches mode strings exactly and silently falls back to preferred on a
 // miss, so a typo here costs the refresh rate without an error.
@@ -31,20 +31,20 @@ output "Lenovo Group Limited 0x40A9 Unknown" {
     mode "1920x1080@60.001"
     scale 1.0
     transform "normal"
-    position x=0 y=420
+    position x=1920 y=60
     focus-at-startup
 }
 
-output "PNP(XYM) PM1601 0000000000000" {
-    mode "1920x1200@59.950"
-    scale 1.0
-    transform "90"
-    position x=1920 y=0
-}
-
 output "PNP(XYM) PM1601 demoset-1" {
     mode "1920x1200@59.950"
     scale 1.0
-    transform "90"
-    position x=3120 y=0
+    transform "normal"
+    position x=0 y=0
+}
+
+output "PNP(XYM) PM1601 0000000000000" {
+    mode "1920x1200@59.950"
+    scale 1.0
+    transform "normal"
+    position x=3840 y=0
 }