New subject: [Bug 55270] NVIDIA OptiX SDK samples hang forever

17 Jul 2023


      https://bugs.winehq.org/show_bug.cgi?id=55270
Bug ID: 55270
           Summary: NVIDIA OptiX SDK samples hang forever
           Product: Wine
           Version: 7.13
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: winex11.drv
          Assignee: wine-bugs@winehq.org
          Reporter: cybermax@dexter.no
      Distribution: ---
Running NVIDA OptiX SDK samples hangs forever before drawing to screen. I have
bisected this to this particular patch:
https://gitlab.winehq.org/wine/wine/-/commit/18ae96e5fb3cbbd53f1a022ba81203d...
This patch is from the https://gitlab.winehq.org/wine/wine/-/merge_requests/416
MR
Reverting this by removing XLockDisplay runs the samples again.
I am not sure why the need for a mutex + XLockDisplay is there, but i assume
the reasoning is perfectly fine - but maybe only IF one actually expect/get an
error? The OptiX samples hits the "ignored_error" thing, but seemingly just
stops without releasing the XDisplay again and thus just hang.
If interested in testing these OptiX samples, i have a pre-compiled set here:
https://github.com/SveSop/wine-nvoptix/pull/20#issuecomment-1079719794 (Read
installation instructions in that post - since the SDK hard-links binaries to
images and whatnot in the folder structure)
All of the samples in THAT particular archive do run if you use latest
"nvidia-libs" from here: https://github.com/SveSop/nvidia-libs/actions
Only nvcuda and nvoptix is needed - no need for DXVK/DXVK-NVAPI to run these
samples - but you DO need NVIDIA RTX 2xxx gpu, and with the aforementioned
revert of XLockDisplay it runs on wine-8.12 from GIT.
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[Bug 55270] New: NVIDIA OptiX SDK samples hang forever