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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
07149 Graphics Minor Always Nov 8, 2018, 20:40 Nov 21, 2018, 17:36
Tester Gary Walton View Status Public Platform Other
Assigned To hap Resolution Fixed OS Windows 10 (64-bit)
Status [?] Resolved Driver docastle.cpp
Version 0.203 Fixed in Version 0.204 Build 64-bit
Fixed in Git Commit Github Pull Request #
Summary 07149: dowild: When level 1 completed (either by player or via attract mode), top of screen flickers
Description Observe the attract mode. As your player completes the level, the top part of the screen flickers. Interestingly, it does not do this on level 2 (I haven't get got to level 3).
Steps To Reproduce Simply watch the attract mode!
Additional Information Discussion started here:
Github Commit
Regression Version 0.197
Affected Sets / Systems dowild
Attached Files
jpg file icon PB072313_resized.JPG (939,396 bytes) Nov 8, 2018, 20:40 Uploaded by Gary Walton
png file icon 0000.png (5,018 bytes) Nov 8, 2018, 21:21 Uploaded by Tafoid
dowild - snap 1
png file icon 0001.png (4,979 bytes) Nov 8, 2018, 21:21 Uploaded by Tafoid
dowild - snap 2
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Nov 8, 2018, 21:14
Specific regression appears to be on April 16, 2018:

commit 2b2c87dfc55a66912d39d26938440955a927ec9e
Author: AJR <>
Date: Mon Apr 16 14:13:20 2018 -0400

    docastle.cpp: Replace MCFG_CPU_VBLANK_INT with CRTC callbacks (nw)