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docs: QEMU desktop boot evidence — virtio-gpu works, login prompt reached

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redbear-full (4GB) boots in QEMU with virtio-gpu-pci:
  - virtio-gpu detected: display 0 (1280x800px) ✅
  - framebuffer console: 'RedBear Login:' prompt appears ✅
  - Wayland compositor: fails on /dev/fd/63 (bash process substitution
    not supported on Redox) — documented as blocker in plan
  - D-Bus system bus: session broker registered ✅
  - KDE session assembly helper: started ✅
  - iommu: no AMD-Vi units in QEMU (expected) ✅

CONSOLE-TO-KDE-DESKTOP-PLAN.md v4.1:
  - Updated compositor blocker: /dev/fd missing on Redox
  - Added QEMU boot evidence date and details
  - Removed P2-rebrand from kernel recipe (line-number conflict
    with consolidated patch — needs rebase)

Remaining errors (pre-existing):
  - fbcond: 'No display present yet' (timing, self-recovers)
  - procmgr: SIGCHLD to PID 1 not permitted
  - cpufreqd: MSR write fails (QEMU, expected)
  - keymapd: Bad file number on scheme read
This commit is contained in:
Vasilito
2026-05-04 19:32:39 +01:00
parent 508432e0e5
commit 5eb969cd28
2 changed files with 6 additions and 5 deletions
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local/docs/CONSOLE-TO-KDE-DESKTOP-PLAN.md
+5 -4
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@@ -1,6 +1,7 @@
# Red Bear OS: Console → Hardware-Accelerated KDE Plasma Desktop
**Version:** 4.0 (2026-04-30)
**Version:** 4.1 (2026-05-04)
**Replaces:** v4.0 (2026-04-30)
**Replaces:** v3.0 and all prior desktop-path documents
**Status:** Canonical comprehensive implementation plan — supersedes `COMPREHENSIVE-OS-ASSESSMENT.md`, `DESKTOP-STACK-CURRENT-STATUS.md`, and all layer-specific plans.
@@ -23,7 +24,7 @@ and what must happen, in what order, to reach a usable KDE Plasma desktop with h
| **relibc POSIX** | 🟢 ~85% coverage | Source + Redox-target tests | Message queues, AF_UNIX |
| **DRM / KMS** | 🟡 Builds, no HW | Source + build | GPU CS ioctl backend |
| **Mesa** | 🟡 swrast only | Build (llvmpipe) | HW renderer cross-compilation |
| **Wayland compositor** | 🟡 Bounded proof | Build + QEMU | Full compositor runtime |
| **Wayland compositor** | 🟡 Bounded proof | Build + QEMU | `/dev/fd` bash process substitution missing on Redox (blocks compositor startup script); framebuffer console fallback works (login prompt visible) |
| **Input / Seat** | 🟢 Working | Build + QEMU | libinput deferred |
| **Greeter / Login** | 🟢 QEMU proof | Build + QEMU proof | — |
| **D-Bus** | 🟡 System bus only | Build + partial runtime | Session bus, user lookup |
@@ -149,9 +150,9 @@ Remaining work: (1) fix `virgl_screen.c` int-conversion warnings-as-errors on Re
| redbear-compositor | 🟡 Bounded proof | 788-line Rust compositor; 3/3 tests; zero warnings |
| kwin | 🔴 Blocked — cmake fails on Qt6Core5Compat; real build gated on QML/Qt6Quick resolution |
**Known compositor limitations**: SHM fd passing uses payload bytes (not SCM_RIGHTS), framebuffer uses private memory (not real vesad), wire encoding uses NUL-terminated strings (not padded Wayland format).
**Known compositor limitations**: SHM fd passing uses payload bytes (not SCM_RIGHTS), framebuffer uses private memory (not real vesad), wire encoding uses NUL-terminated strings (not padded Wayland format). **2026-05-04 QEMU boot**: greeter compositor script fails at `/dev/fd/63` — bash process substitution not supported on Redox. Framebuffer console login prompt works as fallback.
**Blocker**: Qt6Quick/QML downstream proof → real KWin build → full compositor runtime.
**Blocker**: `/dev/fd` implementation OR POSIX-compatible compositor script rewrite. Qt6Quick/QML downstream proof → real KWin build → full compositor runtime.
### 3.2 Input / Seat