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ID Category [?] Severity [?] Reproducibility Date Submitted Last Update
09517 Crash/Freeze Critical (emulator) Always 1 day ago 1 day ago
Tester danylopez123 View Status Public Platform MAME (Official Binary)
Assigned To Resolution Open OS Windows (x64)
Status [?] New Driver
Version 0.289 Fixed in Version Build x64
Fixed in Git Commit Github Pull Request #
Summary 09517: stvbios: Crashes MAME if you pick "C.R.T CHECK" in the ST-V TEST MENU(in factory)
Description This happens for the ST-V in general, regardless if you have a cart inserted or not.
By holding the service menu during bootup, you can access a more extended service menu for the ST-V, mainly to test the different parts of it, things were going fine.. until it tries to get to the C.R.T CHECK PART, over there, it makes MAME crash.

If I remember, this didin't happened in a previous MAME version.

I've included a screenshot using the Saturnus core from Mednafen (Used in BizHawk) to show what it should be showing if it didin't crashed, this sorta seems to happen when it tried to change resolution but the same thing happened in the "CLK-CHANGE" but it doesn't seem to make MAME crash.. could it be something else that's different in the "C.R.T CHECK"?
Steps To Reproduce 1. Load stvbios, only the BIOS, no cart
2. Hold "Service Mode" (F2 by default) during any ST-V bootup
3. Press "Service 1" (9 by default) 2 times to select C.R.T CHECK
4. Press "Service Mode"
5. MAME Crashes (For some BIOS I think, some survive)
Additional Information
Github Commit
Flags
Regression Version
Affected Sets / Systems stvbios
Attached Files
png file icon Radiant Silvergun.2026-08-08 03.55.37.png (10,083 bytes) 1 day ago Uploaded by danylopez123
This is what it would normally be showing if it didin't crashed
danylopez123
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Notes
4
User avatar
No.24569
Kale
Developer
1 day ago
Can't reproduce with latest.
User avatar
No.24573
danylopez123
Tester
1 day ago
I did tried this in the stable 0.289 but now that I got the latest DEV version, it doesn't seem to crash now.
I guess this can be marked as Resolved.
User avatar
No.24574
danylopez123
Tester
1 day ago
No wait.. I was doing this using a different region BIOS and now when I tried this again.. HUH!? Now it's working just fine!?
Ugh.. I swear this was crashing on me before.. I must have ended up having some sort of "Curse" on me.. nevermind, mark this as invalid or something if you want.
User avatar
No.24575
danylopez123
Tester
1 day ago
[Sorry for the 3rd note but somehow, I can't edit my previous notes, this one is the final one, I promise]
Actually.. I know how I've managed to trigger this, I've altered the steps to reproduce, also it seems that this happened to me with the default Japan BIOS but when I tried another, it was just fine, maybe some BIOS are lucky to survive, I don't know.