The native Linux version of the game has serious rendering issues while in the
menus or during conversations in the game.
When the menu appears the book containing the menu options is invisible (or
transparent) and there are strange polygons flashing across the screen; this
makes navigation in the menus difficult.
Pre-rendered videos like the intro video are rendered properly, but the screen
is filled with flashing, brownish polygons whenever the player starts a
conversation with one of the NPCs.
Note: additionally, a thick black polygon is always present, originating from
the player's head, this however is present with the binary driver too, and
could be a different issue.
The graphical issues in the menus and during the conversation screens are not
present when
- using the binary drivers 340.76
- using the software renderer (LIBGL_ALWAYS_SOFTWARE=1)
- when starting the game with NV50_PROG_OPTIMIZE=0
I have Mesa3D built from git with debugging enabled, but nothing is shown in
the terminal or in dmesg.
Example video showing the issue:
https://drive.google.com/open?id=0B-tTbLKBl-tOVG9jUE5fOS1udXM
Trace file generated by Apitrace (uncompressed size 232 MB):
https://drive.google.com/open?id=0B-tTbLKBl-tOWmZSVkVOeEtQNlE
Replaying the trace file with nouveau the problem is present, the binary driver
plays the trace properly (except the black polygon issue which is present with
the 340.76 driver too)
Please let me know if you need additional info or logs.
OS: Fedora 22 i686
Kernel: 4.0.5-300.fc22.i686+PAE
Mesa: compiled from git (10.6-branchpoint-541-g104bff0)
VGA compatible controller: NVIDIA Corporation G92 [GeForce GTS 250] (rev a2)
(prog-if 00 [VGA controller])
xorg-x11-server-Xorg-1.17.1-14.fc22.i686