06924: vgmplay: No screen is created for screenless systems when use_bezels is set to 0

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
06924	Interface	Minor	Always	Mar 28, 2018, 14:55	Mar 29, 2018, 02:59

Tester	wuemura	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	No change required	OS	Windows 10 (64-bit)
Status [?]	Closed			Driver	virtual/vgmplay.cpp
Version	0.196	Fixed in Version		Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	06924: vgmplay: No screen is created for screenless systems when use_bezels is set to 0
Description	No screen is created for screenless systems when use_bezels is set to 0 This bug is referencing vgmplay as the example because despite not having an official screen, the driver is considered working
Steps To Reproduce	mame64 vgmplay -window -nouse_bezels
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	vgmplay

Attached Files	mame.ini (10,817 bytes) Mar 29, 2018, 01:22 Uploaded by wuemura [Show Content]

No.14886 Tafoid Administrator Mar 28, 2018, 16:15	TAB menu and normal Internal UI (Select New Machine) come up fine for me when starting this machine. I'm not sure what is in error here.
No.14891 EoceneMiacid Tester Mar 28, 2018, 17:37	Does this happen with any drivers other than vgmplay as well?
No.14896 B2K24 Senior Tester Mar 28, 2018, 23:57	Unable to reproduce here on my end.
No.14898 wuemura Viewer Mar 29, 2018, 01:03	The error is that there is no interface, I can't see the interface to press TAB for example. In my environment it only works in full screen. It just happen with vgmplay. I'll upload my mame ini soon as I get home.
No.14900 wuemura Viewer Mar 29, 2018, 01:22	mame ini uploaded.
No.14901 Tafoid Administrator Mar 29, 2018, 02:52	The trigger is -nouse_bezels (use_bezels 0 in your mame.ini). Doing this with full screen will show a black screen, but the UI will show up Adding -window and MAME will not create a window, apparently, because there is technically no screen present.
No.14902 cuavas Administrator Mar 29, 2018, 02:59	Well, it has no screens - the message telling you that is a piece of artwork. If you disable artwork, it won't be displayed. Similarly, systems without screens that use the artwork/output system to provide display will display nothing if you disable artwork (e.g. whousetc, 705p3prg, 705p5prg, 705r3prg, 705u3prg, aim64, any of the fruit machines with only reel/led/lamp/digit outputs, or any of the pinballs with only lamp/led/digit output).