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| First of all, make sure you've followed [[Getting_Started|the getting started guide]], as well as [[Serfrosts_Cemu_Setup_Guide|Serfrost's setup guide]] for Cemu.<br>
| | This information should now be viewed here: https://cemu.cfw.guide/troubleshooting |
| In many cases a simple mistake has been made, like loading the update .rpx instead of loading base game which leads to an instant crash.<br>
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| <br>
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| '''My game crashes on boot / crashes in-game''' <br>
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| :There can be many different issues to this. Everything from loading the wrong .rpx too broken game files or wrong settings set in Cemu.
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| :Let's start off from the top; | |
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| - Make sure you are loading the base game. If you just installed a update, Cemu will show the folder for the update if you choose "File-->Load".
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| This will not be an issue if you direct Cemu to index all your games and present a game list for you (ref. [[Serfrosts_Cemu_Setup_Guide|serfrost's setup guide]])
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| - Next up set CPU Mode back to "Single-Core Recompiler" (assuming you've changed that for whatever reason).
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| About one third of the actual Wii-U library supports multicore recompiler, were Unity produced games being a large portion of it.
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| I'd advice you to check out [[Multicore_Recompiler|the wiki-page about multi-core recompiler]] and look through the list of supported games
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| - Disable all of your graphic packs (also click the nifty download button in the down right corner while you're at it to make sure they're updated to their latest)
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| If this fixes it, try enabling one by one until it crashes again. The graphic pack might be incompatible with other packs or just be broken.
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| Please report this to the #gfx_packs channel on out [https://discord.gg/5psYsup Cemu Discord server]
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| - Still getting weird crashes? Reset any other settings you've changed back to default or delete the "settings.xml"
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| Just a FYI; Most games doesn't require any changes made by the end user to simply boot and run. A lot game specific settings are set by individual game profiles.
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| These profiles can be accessed by right clicking on the game you got issues with from your game list and selecting "Game Profiles"
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| You could also cross check with the compatibility page for said game (link to compat page).
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| <br>
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| '''My game tells me to update my Wii U'''<br>
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| :[[File:Wiiu needs update.png|500px|Example of how this could look like.]]
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| :This is Nintendo's way to say that you're actually missing the day one update, which was pushed out on the release day of the game you're trying to load.<br>
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| :Simply install the latest game update available for your game via Cemu's update and DLC installer (click File --> Install Update / DLC and direct it to the meta folder of the update)
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| The update can easily be dumped off your console via FTP. I'd recommend reading through the "[[Getting_Started|Getting started]]" wiki page. It'll tell you how to do proper dumps of your games, updates, DLC and saves.
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| <br>
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| '''I have issues with the game seeing and making use of my input device'''<br>
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| :As long as your input device is recognized by Cemu there's some hope to sort this out simply.<br>
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| :First of all, you got to remember that the console expects a Wii U Gamepad assign as the first controller and ever additional input devices goes as Pro Controllers or WiiMotes, so make sure you set the first controller as this.<br>
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| :If your input device doesn't work in-game, try changing between Xinput and DirectInput.<br>
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| <br>
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| '''All my saves are gone and so are my DLC and game updates!'''<br>
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| :Did you recently update Cemu or move it around?<br>
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| :A lot of people set a path for the "mlc-folder", which isn't really needed since it defaults to the one within the Cemu-folder if nothing else is specified.<br>
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| :This folder contains all of your saves, installed updates, DLC and even account files for your online profile if you've dumped and installed those.<br>
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| :Now what you actually need to do is to find the existing folder you had. (you most likely linked cemu to the one inside the Cemu-folder at the installation point, so redirect it the same one if what you probably have to do).<br>
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| Using the search function in Windows and search all drives for "mlc01" is one way to actually find it again if you set the mlc-folder elsewhere, but can't find it)
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| <br>
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| '''Cemu is stuttering real bad when i'm playing'''<br>
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| :This is shaders and pipelines that are being cached.<br>
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| ::'''NOTE!''' It's normal to experience stutters when you're reusing your old shader cache from openGL when using Vulkan.<br>
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| ::Vulkan has pipeline stutter which comes from the GPU vendors side, hence why there isn't any notification when they are created.<br>
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| ::Therefor it is recommended to start over when switching over to using the Vulkan API. Shaders are caches way faster than what openGL did and leaves a much smoother first time experience.<br>
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| :There's no way to avoid this, besides actually playing the game and collect those shaders.<br>
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| :Once one is collected, it won't stutter again for the same thing / area.<br>
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| :Some games have a running demo at start before you get into the game menus, like Mario Kart 8. Just let the game sit there and play through those demos for a while before starting to enjoy the game.<br>
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| Same method can be used for Super Smash Bros. U, where you set up matches were the CPU plays against itself on different stages.
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| <br>
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| '''How can I use motion controls? / Cemu won't recognize my motion controls'''<br>
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| :Best tip here is to read through the [[Motion_Controls|motion controls wiki]] and double check yourself and your setup according to provided guide.<br>
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| <br>
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| '''My game is now crashing or having weird performance / graphics displayed'''<br>
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| :Windows has for some reason started to auto download GPU-drivers between major updates and many times tends to pick an older driver for your GPU.<br>
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| :Check your control panel for your GPU and see if there's an update. If not and the weirdness continues, consider to do a [https://www.guru3d.com/files-details/display-driver-uninstaller-download.html DDU of your GPU-driver.]<br>
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| This will also sort out issues of Vulkan not showing up as an available API when you do in-fact have a valid GPU. Keeping everything up-to-date is important!
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| I'd advice you to spend some time reading through how to properly do a DDU as well.
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| <br>
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| <br>
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| '''Still got issues? Ask for help on our [https://discord.gg/5psYsup Discord Server]'''<br>
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| :If you're going to ask for help, head over to [https://discord.gg/5psYsup our discord server] and find your way to the #troubleshooting channel.<br>
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| :Please provide the log.txt text file which you can find next to the cemu.exe.<br>
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| :The text file will clear itself every time you open up Cemu, so make sure you either got Cemu running while uploading it or upload it directly after a crash.<br>
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| :The most preferred way to send a log.txt is to simply drag that file into this discord window and drop it.<br>
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| :And always leave notes on what you were trying to do upon the crash / bug!<br>
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| [[Category:List_of_tutorials]] [[Category:Troubleshooting]]
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