• Monster Hunter World
• Steam
• Proton Issue Tracker
• ProtonDB
• WineHQ AppDB

• Fedora Workstation

• Benefits from a Fsync-compatible kernel
• Benefits or requires GloriousEggroll's custom Proton build

sudo dnf install 'steam'

• GloriousEggroll/proton-ge-custom GitHub
• Releases

• Proton-5.5-GE-1 did not fix video playback, and introduces an issue with exiting the game
• Proton-5.4-GE-3 is fine

mkdir -p ~/'.steam/root/compatibilitytools.d' && gio open ~/'.steam/root/compatibilitytools.d'

• Install from Steam or restore from backup through Steam
• Need to go to properties and force the use of a specific compatibility tool, specifically the one downloaded on the previous step
• This can take up to 20-30 minutes

• z0z0z/mf-install GitHub

• This fixes movie playback, notably trying to play back weapon preview videos
• If MH:W freezes when trying to play a movie, or for seemingly no reason, this may be required
• Observe Proton issue #175 and ProtonDB to see if there's any reports related to this
• As of 2020/04/06, Proton-5.4-GE-3 requires this
• Be aware of issue #44 with CPUs with more than 8 cores

rm -Rf '/tmp/mf-install' && git clone --branch 'master' --depth '1' 'https://github.com/z0z0z/mf-install.git' '/tmp/mf-install' && sync

• The PROTON environment variable needs to point to a folder containing the Proton compatibility tool planned to be used

cd '/tmp/mf-install' && WINEPREFIX=~/'.steam/steam/steamapps/compatdata/582010/pfx' PROTON=~/'.steam/root/compatibilitytools.d/Proton-5.4-GE-3' ./mf-install.sh -proton

cd ~ && rm -Rf '/tmp/mf-install' && sync

• More Environment Variables
• See Runtime Config Options for Proton-specific environment variables
• For any environment variables added, make sure %command% is placed at the end of the line

• Can be used to test if fsync is being used
• Probably shouldn't keep this enabled all the time

PROTON_LOG=1 %command%

• If using PRIME Render Offload

__NV_PRIME_RENDER_OFFLOAD=1 __VK_LAYER_NV_optimus=NVIDIA_only %command%

• A lot of this needs verification and is quick observation

• MH:W uses more video memory under this configuration (Proton + DXVK) than Windows 10 natively
• Use of High-resolution textures on a 6GB GTX 1060 at 1080p goes over 6GB of video memory usage, and causes significant performance drops
• Volumetric lighting should be set to Low; doesn't seem to affect graphics quality, but hits performance hard above Low
• Vsync should be disabled seemingly

gio open ~/'.steam/steam/compatibilitytools.d'

gio open ~/'.steam/steam/steamapps/compatdata/582010/pfx'

gio open ~/'.steam/steam/steamapps/common/Monster Hunter World'