Can't start MH4 and MHXX (fatal error)

Citra Support
#1

Issue:
I can’t start any of the games mentioned, it was starting fine last night and I just got home and it won’t start and kept showing (fatal error)

System Information

  • Operating System: Windows 10 Pro
  • CPU: Intel® Core™ i5-3320m CPU @ 2.70GHz
  • GPU: Intel HD 4000 (no dedicated)
  • Citra Version (found in title bar): 1550 (Nightly Build)
  • Game: MH4U/MHXX
  • Screenshot of Issue (include the full Citra window including titlebar):

Diagnostic Log
Upload your log file as an attachment by dragging & dropping.
citra_log.txt (16.0 KB)
In order to save a copy of the log, follow this guide:
https://community.citra-emu.org/t/how-to-upload-the-log-file/296

#2

System Information for Support

Client Version                                Nightly 1550 HEAD-028609d
Operating System                              Windows 10 (10.0)
CPU                                                  Intel(R) Core(TM) i5-3340M CPU @ 2.70GHz
Graphics API                                  OpenGL 3.3.0
Graphics Renderer                             Intel(R) HD Graphics 4000
GPU Driver Version                            10.18.10.4885
CPU JIT                                       [x]
Hardware Renderer                             [x]
Hardware Shader                               [x]
Hardware Shader, Accurate Multiplication      [ ]
Shader JIT                                    [x]
System Region                                 -1
Shader Disk Cache                             [x]

Here’s some issues I found with your log that might help.

  • You are running out of date drivers for your GPU. You need to install the most recent driver for your graphics card from Intel’s website. https://downloadcenter.intel.com/product/80939/Graphics-Drivers
  • Enabling Accurate Multiplication is recomended in certain games. If you are experiencing graphical glitches, try enabling this option.
#3

My GPU is already updated though.

#4

Nah latest is 5129.

Download win64_15.33.50.5129.zip from https://downloadcenter.intel.com/download/29473/Intel-Graphics-Driver-for-Windows-15-33-?product=71257
direct link: https://downloadmirror.intel.com/29473/a08/win64_15.33.50.5129.zip

then follow this guide to install it: https://www.howtogeek.com/343287/how-to-fix-the-driver-being-installed-is-not-validated-for-this-computer-on-intel-computers/

Also do this:

  1. Open Citra then go to File->Open Citra Folder
  2. Open shaders folder then delete the opengl folder if it’s there
  3. Emulation->Configure... then click on Graphics on the left
  4. Click on the Advanced tab and turn on Accurate Multiplication

The Disk Shader Cache currently has a bug when Accurate Multiplication is turned off causing it to slowly load all shaders from zero every time you start the game and makes the precompiled cache extrememly large + the RAM usage skyrockets until you crash.

I will give you the benefit of the doubt that you are not trying to run the “prepatched v4” rom which is broken and only pirates use it.

#5

Oh ok thanks for the fast reply. I will be working on this and see if it works. Thanks for the update I was completely unaware of that update. I still have much to learn.

#6

and BOOM it worked thanks! I checked my driver and kept saying that it has the latest but it wasn’t so I re-rolled the driver back and installed the latest version and it worked like magic.

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