Latest GOG release (1.31 or GOTY)
To make the game playable, you need to currently build Wine from source, applying virtual heap fix patch, buffer pool fix patch, and sample_c_lz hack patch (see howtos). After that, set CSMT and OpenGL version in registry (see howtos), and install xact_jun2010 (see howtos).
After that it produces very good result, but since it requires all these manual steps, I'm still giving it bronze rating.
CPU: Intel Core i7 4770.
GPU: AMD RX480 Sapphire Nitro+ (4GB VRAM)
OpenGL renderer string: Gallium 0.4 on AMD Radeon RX 480 Graphics (DRM 3.8.0 / 4.9.0-3-amd64, LLVM 4.0.1)
OpenGL core profile version string: 4.5 (Core Profile) Mesa 17.2.0-devel (git-f56aa25ac5)
I get around 40 fps with the above setup (max settings, HBAO+ enabled. Hairworks is off).
What does not
What was not tested
Didn't finish the game yet and didn't play any expansions.
I picked Wine, and not Wine staging, since it's something in between.
|Operating system||Test date||Wine version||Installs?||Runs?||Used|
|Show||Debian 10.x "Buster"||Oct 18 2020||5.19-staging||Yes||Yes||Yes||Gold||Robert Waldner|
|Show||Gentoo Linux x86_64||Mar 29 2020||5.3||Yes||Yes||Yes||Gold||tt_1|
|Show||Debian GNU/Linux 9.x "Stretch" x86_64||May 10 2019||4.7-staging||Yes||Yes||Yes||Gold||Nosferatu Arucard|
|Show||Arch Linux x86_64||Apr 13 2019||4.1-staging||Yes||Yes||Yes||Silver||abcdefg|
|Show||Debian GNU/Linux 9.x "Stretch" x86_64||Jan 07 2019||4.0-rc4-staging||Yes||Yes||Yes||Gold||Nosferatu Arucard|
|Bug #||Description||Status||Resolution||Other apps affected|
|43133||The Witcher 3: ambient occlusion distortions||NEW||View|
|43786||The Witcher 3: textures flicker in some places when you move (derivatives after discard)||NEW||View|
|43816||The Witcher 3: white outline on vegetation during rain at nighttime||UNCONFIRMED||View|
|43861||The Witcher 3: Movement problems||UNCONFIRMED||View|
|44315||Buffer maps cause CPU-GPU synchronization (Guild Wars 2, The Witcher 3)||NEW||View|
|45989||The Witcher 3 flickers horribly and has artifacts||UNCONFIRMED||View|
Currently with wined3d, The Witcher 3 is still affected by CPU-GPU buffer maps synchronization issue (bug #44315). It severely degrades performance.
Using dxvk instead of wined3d is the best course of action, since it performs very well, and also provides perfect rendering, as long as your Vulkan driver supports VK_EXT_transform_feedback extension.