[BUG REPORT] Gran Turismo 4 (PAL)

[Zalien]

Hello devs,
I have a new bug since I updated today. When I go full screen, the render completely broke and become glitchy. Please give us a fix.

[jesalvein]

Please post the contents of the emulog.txt file after the problem occurs. The file can be found in "My Documents\PCSX2\logs" for the installer version or in "PCSX2\logs" for the portable/binary version.

Please make sure to enclose your emulog in code tags like so (remove the empty space on the closing code tag!):
[code]
Pasted emulog goes here
[ /code]

[Zalien]

here the logs
# Initialize FPU ...
# Initialize Scratch Pad ...
# Restart Without Memory Clear Done.
[3.8203] ELF cdrom0:\SCES_517.19;1 with entry point at 0x16777224 is executing.
[3.8248] ELF changed, active CRC 44A61C8F (cdrom0:\SCES_517.19;1)
[3.8250] Found 1 game patches in SCES-51719_44A61C8F.pnach.
[3.8251] Found 1 cheats in D:\PS2\PCSX2\pcsx2-v1.7.4268-windows-64bit-AVX2-Qt\cheats\44A61C8F_deinterlace.pnach.
[3.8252] Found 1 cheats in D:\PS2\PCSX2\pcsx2-v1.7.4268-windows-64bit-AVX2-Qt\cheats\44A61C8F_triggers.pnach.
[3.8252] Enabled patch: Widescreen 16:9
[3.8252] Enabled patch: <unknown>
[3.8252] Enabled patch: <unknown>
[3.8252] OSD [LoadPatches]: 1 game patches, 2 cheat patches are active.
[3.8252] Applying core settings...
[3.8534] [Unsafe Settings] Cycle rate/skip is not at default, this may crash or make games run too slow.
[3.8534] [Unsafe Settings]ng is not set to Bilinear (PS2). This will break rendering in some games.
[3.8534] [Unsafe Settings]
[3.8534] OSD [unsafe_settings_warning]:  Cycle rate/skip is not at default, this may crash or make games run too slow.
[3.8534]  Mipmapping is not set to automatic. This may break rendering in some games.
[3.8534]  Texture filtering is not set to Bilinear (PS2). This will break rendering in some games.
[3.8534]  Trilinear filtering is not set to automatic. This may break rendering in some games.
[3.8534]  EE FPU Clamp Mode is not set to default, this may break some games.
[3.8534] (GameDB) Changing VU0 clamp mode [mode=2]
[3.8534] (GameDB) Changing VU1 clamp mode [mode=2]
[3.8534] [GameDB] Enabled GS Hardware Fix: mipmap to [mode=2]
[3.8534] [GameDB] Enabled GS Hardware Fix: trilinearFiltering to [mode=1]
[3.8534] [GameDB] Enabled GS Hardware Fix: halfPixelOffset to [mode=1]
[3.8534] [GameDB] Enabled GS Hardware Fix: getSkipCount to [mode=17]
[3.8534] Updating CPU configuration...
[3.8653] Updating GS configuration...
[3.8654] Vsync is ON
[3.8824] EE/iR5900 Recompiler Reset
[3.9301] (UpdateVSyncRate) Mode Changed to PAL.
[3.9302] (UpdateVSyncRate) Mode Changed to PAL.
[3.9822] Playing game updated to 20580 (Gran Turismo 4)
[5.2903] [Pad] Game finished pad setup for port 1 / slot 1 - Analogs: Off - Analog Button: Usable - Pressure: Off
# TLB spad=0 kernel=1:12 default=13:30 extended=31:38
# Restart Without Memory Clear.
[9.2081] (UpdateVSyncRate) Mode Changed to PAL.
[9.2083] (UpdateVSyncRate) Mode Changed to PAL.
# Initialize GS ...
# Initialize INTC ...
# Initialize TIMER ...
# Initialize DMAC ...
# Initialize VU1 ...
# Initialize VIF1 ...
# Initialize GIF ...
# Initialize VU0 ...
# Initialize VIF0 ...
# Initialize IPU ...
# Initialize FPU ...
# Initialize Scratch Pad ...
# Restart Without Memory Clear Done.
[10.6717] (UpdateVSyncRate) Mode Changed to PAL.
[10.6717] (UpdateVSyncRate) Mode Changed to PAL.
[11.8919] [Pad] Game finished pad setup for port 1 / slot 1 - Analogs: On - Analog Button: Locked - Pressure: On
[11.8920] [Pad] Game finished pad setup for port 2 / slot 1 - Analogs: On - Analog Button: Locked - Pressure: On
[24.9627] Creating a 1920x1080 flip-discard windowed swap chain
[25.1374] (UpdateVSyncRate) Mode Changed to PAL.
[30.0756] Creating a 1918x998 flip-discard windowed swap chain
[30.2603] (UpdateVSyncRate) Mode Changed to PAL.
[33.4855] (VMManager) Pausing...
[35.4033] Add 33 seconds play time to SCES-51719 -> now 623448
[43.5887] Releasing host memory for virtual systems...

[jesalvein]

reset settings to default
and if it happens again, post a new emulog (full one that starts around [0.0]) with default settings

[Zalien]

When settings back to default, there is no such problem. But it's just avoiding it, that's not a fix...

[Zalien]

After setting PCSX2 again, I think there is a problem with DirectX11 in this game. Setting renderer to DirectX11, waiting to be dropped in GT mode and press Alt+Enter will cause this broken rendering.

[Zalien]

Anyone?

[jesalvein]

Why are you using dx11 with those specs ?

[Zalien]

Humm... Because I can set the blending to max to have smooth reflections on cars and it's stable. Vulkan is unstable; OpenGL is very hungry on the resources; Dx12 have some issues in rendering this game (flickering)

[jesalvein]

Vulkan IS unstable ? Since when ?