BSOD 0x000000b4 on Neko Project 21/W (PC-98 port)

BSOD 0x000000b4 (VIDEO_DRIVER_INIT_FAILURE) is happening when trying to boot ReactOS PC-98 port in Neko Project 21/W.

Previously there were no such problem, so this is regression. An excerpt from debug log:

(ntoskrnl/mm/ARM3/sysldr.c:182) Loading: \SystemRoot\System32\framebuf.dll at F94F7000 with c pages

(win32ss/gdi/eng/ldevobj.c:549) err: DrvrGetModes returned 0 on second call

WARNING:  LDEVOBJ_bUnloadImage at win32ss/gdi/eng/ldevobj.c:290 is UNIMPLEMENTED!

(win32ss/gdi/eng/ldevobj.c:628) err: No devmodes

(win32ss/gdi/eng/pdevobj.c:853) err: Failed to create new MDEV

(win32ss/user/ntuser/winsta.c:268) err: PDEVOBJ_lChangeDisplaySettings() failed.

Full debug log:
0.4.15-dev-4611-g6f4be52a1c7.txt

Guilty commit is not known yet.

• Working revision: 0.4.15-dev-3429-g1897f9f0c0e (good)
• Tested revision: 0.4.15-dev-4611-g6f4be52a1c7 (bad)

Some patches are still needed to boot it to the desktop, so this complicates the git bisect process.