"PROTON_USE_D9VK=1 %command%"
"PROTON_USE_D9VK=1 %command%"
Hi I tried running homm5.5 on linux mint 19.1 (equivalent to ubuntu 18.04) and encountered more or less the same issue as you do. However, once I changed the launch option to "PROT_USE_D9VK=1 %command%" it solves most issues encountered. There are occasional stutters but nothing game breaking. Note that you need a vulkan-capable card to use d9vk.
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