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Clarify dgVoodoo2 scope: any second display, cameraship included

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The dgVoodoo2 requirement was written as an MFD-mode problem. It is not. The
limitation is per SECONDARY DISPLAY, not per feature, so it applies to every mode
that lights up a second monitor -- including cameraship mode, which uses two
displays and no MFDs at all.

Console mode is the only configuration that does not need dgVoodoo2, because it is
single-display.

This matches the code: IsMultimonitorAvaliable() returns false for
_ECTCL_CameraShip, so cameraship falls through to IsSecondaryMonitorAvaliable()
and the single-secondary mr_device path -- which is still a second exclusive
IDirectDraw7, and therefore still refused by modern Windows for exactly the same
reason as the MFD panels.

Release notes updated in all three places it appears -- section heading and opening,
the known-issues entry, and upgrade checklist step 4 -- so an owner running
cameraship pods cannot read the requirement as "only applies to MFD setups" and
skip it. CLAUDE.md STEP 10 and repo memory corrected likewise, since both stated
the narrower "-tmfds 1/3/4" scope.

Both release-notes formats regenerated; still plain ASCII with CRLF.

Co-authored-by: Claude Opus 5 (Anthropic) <noreply@anthropic.com>
Co-authored-by: GitHub Copilot <copilot@github.com>
This commit is contained in:
dicion
2026-07-26 10:20:10 -05:00
co-authored by Claude Opus 5 GitHub Copilot
parent 7f7f98d992
commit 7fc9089aad
3 changed files with 44 additions and 27 deletions
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CLAUDE.md
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@@ -1039,7 +1039,13 @@ rebuild between attempts. Results (no dgVoodoo2, shim applied, `-tmfds 4`):
**CONCLUSION: on modern Windows only ONE DirectDraw object per process may hold exclusive
fullscreen.** The main display takes it; every secondary panel is refused. XP allowed multiple;
**dgVoodoo2 allows it because it is a full reimplementation of ddraw, not bound by that rule.**
=> **dgVoodoo2 cannot be removed for `-tmfds 1/3/4` by fixing flags.** Default stays `-tcoop 0`.
=> **dgVoodoo2 cannot be removed by fixing flags.** The limitation is per *secondary display*,
not per feature, so it applies to **every mode that opens a second monitor** — all MFD modes
(`-tmfds 1/3/4`) **and cameraship mode**, which drives two displays with no MFDs at all via the
single-secondary `mr_device` path (`IsMultimonitorAvaliable()` returns false for
`_ECTCL_CameraShip`, so it falls to `IsSecondaryMonitorAvaliable()` — still a second exclusive
IDirectDraw7). **Console mode is the only configuration that needs no dgVoodoo2**, because it is
single-display. Default stays `-tcoop 0`.
(`-tcoop` is retained: it is how this was settled and will re-settle it on different hardware.)
### ✅ Working 4-monitor config (WITH dgVoodoo2)