protonscr

The Calisto Protocol: Reproducible Page Fault when switching from hdr to sdr in game options

vkd3dclosed
HansKristian-Work/vkd3d-proton#2775 · opened 2026-01-01 by pingubot · updated 2026-01-07 · 3 comments · github
Ppingubot 2026-01-01 github

Hi,

i get a reproducable amdgpu page fault when i do the following:

  • Start the game with Proton-GE with HDR (ROTON_ENABLE_WAYLAND=1, PROTON_ENABLE_HDR=1) (same seems to happen when HDR is used with gamescope)
  • The game should automatically start with HDR enabled
  • Got to: Options->Graphics->Display
  • Klick on the enabled part of the HDR setting (should disable hdr)
  • Page Fault happens

This is fully reproducible.

Software information

The Calisto protocol, Max, No motion blur, RT High

System information

  • GPU: 9070XT
  • Driver: RADV git, 7ed6679361f02ea48562652d11281e927ee06fed
  • Wine version: Proton-GE 10.25
  • VKD3D-Proton version: Master (4d4abaa)

Log files

calisto-protonlog.txt

calisto-pagefault.txt

TTrevonn 2026-01-01 github

Reproduced on my 9070 XT

Image

dmesg.log

shader dump and vkd3d-proton log files too large to attach. Ping on discord for the 7z files

shader dump and vkd3d-proton log files

System Information

  • GPU : AMD Radeon RX 9070 XT (RADV GFX1201)
  • CPU : AMD Ryzen 7 7700X 8-Core Processor
  • RAM : 32 GB
  • Driver : Mesa 26.0.0-devel (git-7ed6679361)
  • Wine : proton-experimental-bleeding-edge-10.0-288786-20251230-p4e82ce-w3cd5fd-d584041-v4d4aba-unstripped
  • DXVK : Commit: 584041f
  • VKD3D-Proton : Commit: 4d4abaa
  • Kernel : 6.18.2-arch2-1
  • VRAM : 16384 MB
HHansKristian-Work maintainer 2026-01-05 github

Reproduced. Looks like a very straight forward use-after-free situation.

Ppingubot 2026-01-05 github

The linked mr fixes the issue, many thx !

Proton versions

Launch options