08783: pdrift and clones: Game locks up with black screen

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
08783	Crash/Freeze	Critical (emulation)	Sometimes	Nov 1, 2023, 11:20	May 12, 2024, 18:22

Tester	umeyar	View Status	Public	Platform	MAME (Official Binary)
Assigned To	R. Belmont	Resolution	Fixed	OS	Windows 10/11 (64-bit)
Status [?]	Resolved			Driver	sega/segaybd.cpp
Version	0.259	Fixed in Version	0.266	Build	64-bit
		Fixed in Git Commit	f9ef858	Github Pull Request #

Summary	08783: pdrift and clones: Game locks up with black screen
Description	Stuck on black screen at start of stage music continues to play
Steps To Reproduce	It happens sometimes while playing can check it immediately by running the demo play with no wait.
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	pdrift and clones

Attached Files	pdriftj_lock_after_boot.zip (734 bytes) Nov 2, 2023, 15:09 Uploaded by hap nvram for pdriftj, locks up after 'for use in japan' screen

No.21815 Haze Senior Tester Nov 2, 2023, 10:21	yeah, it started happening with the 68000 rewrite, unclear why as it's very random; sometimes you can play without any issue at all for hours, other times this happens.
No.21816 Robbbert Moderator Nov 2, 2023, 12:28	I started the game and let it run in attract mode. Within seconds it went to a black screen.
No.21818 hap Developer Nov 2, 2023, 15:13	I uploaded an nvram file I made a few months ago, it will consistently lock up right after booting. mame pdriftj -nonvram_save Without nvram (eg. remove nvram/pdrift or nvram/pdriftj), it will lock up during attract mode.
No.22102 R. Belmont Developer May 12, 2024, 18:22 edited on: May 12, 2024, 18:24	Reverted Y-Board games to the previous Musashi M68000, where TAS is not interruptible. Validated with hap's NVRAM (which is indeed a 100% freeze with new68k) and running unthrottled in attract mode for several minutes.