April 2026 - Wine-Bugs - list.winehq.org

[Bug 59608] New: wined3d: D3DRS_ALPHATESTENABLE has no effect on GLES-derived GL drivers (Panfrost) in compat profile — alpha-tested geometry renders opaque
by WineHQ Bugzilla April 2, 2026

April 2, 2026

http://bugs.winehq.org/show_bug.cgi?id=59608 Bug ID: 59608 Summary: wined3d: D3DRS_ALPHATESTENABLE has no effect on GLES-derived GL drivers (Panfrost) in compat profile — alpha-tested geometry renders opaque Product: Wine Version: 11.4 Hardware: aarch64 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: d3d Assignee: wine-bugs(a)list.winehq.org Reporter: siordache94(a)gmail.com Distribution: --- When running a Direct3D 9 application on a GLES-derived OpenGL driver (Mesa Panfrost, Mali-G52) with MESA_GL_VERSION_OVERRIDE=3.1COMPAT, D3DRS_ALPHATESTENABLE render state changes have no visible effect. Alpha-tested geometry (e.g. billboard tree cards using DXT3 textures with alpha) renders as fully opaque solid rectangles instead of having transparent pixels discarded. ### Environment - Wine 11.4 (ARM64, WoW64/Hangover) - Mesa 24.x Panfrost driver (Mali-G52 MP2, RK3566 SoC) - MESA_GL_VERSION_OVERRIDE=3.1COMPAT - UseGLSL=enabled, CSMT=1 - Game: FlatOut (2004, GOG), Direct3D 9 fixed-function + shader ### Expected behavior Pixels with alpha < reference value should be discarded (not drawn), producing cutout shapes for vegetation, fences, etc. ### Actual behavior All pixels render regardless of alpha value. The full billboard quad is visible as a solid black rectangle. The texture data IS loaded correctly (color channels render fine), only the alpha test/discard is missing. ### Root cause analysis Panfrost is a GLES-derived GL driver. It advertises GL 3.1 COMPAT but does NOT implement the fixed-function GL_ALPHA_TEST pipeline in hardware. The glEnable(GL_ALPHA_TEST) + glAlphaFunc() calls silently do nothing. wined3d's GLSL backend has code to emit "discard" in fragment shaders for alpha test, but in compat profile contexts it appears to rely on the driver's fixed-function GL_ALPHA_TEST instead of always using shader-based discard. On desktop GPUs (NVIDIA, AMD, Intel) this works because they implement GL_ALPHA_TEST in hardware. On GLES-derived drivers (Panfrost, Lima, freedreno, v3d, Zink-on-GLES) it silently fails. ### Workaround Embedding explicit ps_2_0 pixel shaders with texkill instructions in the game's .sha effect files forces Wine to compile the discard into the GLSL fragment shader at shader creation time, bypassing the runtime render state path. This confirms the GLSL discard mechanism itself works — the issue is that wined3d doesn't activate it for compat profile contexts. ### Proposed fix wined3d should always use shader-based alpha test (uniform-gated discard) regardless of GL profile, or probe whether GL_ALPHA_TEST actually functions at init time. This would fix alpha test for all GLES-derived Mesa drivers on ARM (Panfrost, Lima, freedreno, v3d) and potentially Zink. -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.

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[Bug 59601] New: dlls\kernelbase\debug.c isn't shipping with the debug symbols
by WineHQ Bugzilla April 2, 2026

April 2, 2026

http://bugs.winehq.org/show_bug.cgi?id=59601 Bug ID: 59601 Summary: dlls\kernelbase\debug.c isn't shipping with the debug symbols Product: Wine Version: 11.5 Hardware: x86-64 OS: Linux Status: UNCONFIRMED Severity: minor Priority: P2 Component: -unknown Assignee: wine-bugs(a)list.winehq.org Reporter: mirh(a)protonmail.ch Distribution: --- So, I'll premise that I really don't know anything about the magic of autoconf. https://forum.winehq.org/viewtopic.php?t=36001#p135416 Still, after much headbanging I come to understand it's a problem on your side (and not Arch's) if that source file isn't getting copied in the debug folder. You can instead see in bug 46010 that when somebody is building wine on their own system, the debugger can find it. -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.

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[Bug 59598] New: TCT installer: Wine crashes in the middle of installation
by WineHQ Bugzilla April 2, 2026

April 2, 2026

http://bugs.winehq.org/show_bug.cgi?id=59598 Bug ID: 59598 Summary: TCT installer: Wine crashes in the middle of installation Product: Wine Version: 9.0 Hardware: x86-64 OS: MacOS Status: UNCONFIRMED Severity: normal Priority: P2 Component: -unknown Assignee: wine-bugs(a)list.winehq.org Reporter: mashavasilyok(a)gmail.com Created attachment 80667 --> http://bugs.winehq.org/attachment.cgi?id=80667 crash trace and crash screenshot TCT 3.0.30 - https://github.com/teltonika-telematics/tct/releases/download/v3.0.30/Telem… wine-9.0 MacBook Air M3, MacOS Tahoe 26.3.1 (a) 1) Run installer exe file 2) Select English as language, click OK 3) Click Next 4) Click I agree 5) Select destination folder and click Next 6) After running installation for some time, an error "Program Error" is shown and Wine crashes -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.

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[Bug 48955] New: Use xdg basedir spec
by WineHQ Bugzilla April 1, 2026

April 1, 2026

https://bugs.winehq.org/show_bug.cgi?id=48955 Bug ID: 48955 Summary: Use xdg basedir spec Product: Wine Version: unspecified Hardware: x86 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: -unknown Assignee: wine-bugs(a)winehq.org Reporter: riptide(a)mundo-r.com Distribution: --- https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html Instead of ~/.wine, configuration should be in the $XDG_CONFIG_HOME/wine/ and cache (safely-deletable files) should be in $XDG_CACHE_HOME/wine/. The big boxes files should be in the $XDG_DATA_HOME/wine/. -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.

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[Bug 59607] New: ACD/ChemSketch 2025.2.1: crashes immediately when copying structures to clipboard (Ctrl+C)
by WineHQ Bugzilla April 1, 2026

April 1, 2026

http://bugs.winehq.org/show_bug.cgi?id=59607 Bug ID: 59607 Summary: ACD/ChemSketch 2025.2.1: crashes immediately when copying structures to clipboard (Ctrl+C) Product: Wine Version: 11.0 Hardware: x86-64 OS: MacOS Status: UNCONFIRMED Severity: normal Priority: P2 Component: ole32 Assignee: wine-bugs(a)list.winehq.org Reporter: massyfederici(a)gmail.com Created attachment 80672 --> http://bugs.winehq.org/attachment.cgi?id=80672 Logs of bugs ### Environment - OS: macOS (MacBook Air) - Wine version: 11.0 (Stable/Dev) - Software: ACD/ChemSketch (Freeware) 2025.2.1 - Build: 147869 (26 Jan 2026) - File Version: C65E41 ### Problem Description The application ACD/ChemSketch 2025.2.1 crashes instantly when attempting to copy any drawn object or chemical structure to the clipboard using Ctrl+C or the "Edit -> Copy" menu. ### Steps to Reproduce 1. Start ACD/ChemSketch 2025.2.1 in a clean WINEPREFIX. 2. Draw a simple structure (e.g., a benzene ring or a single bond). 3. Select the structure using the selection tool. 4. Press Ctrl+C to copy. ### Actual Result The application terminates abruptly with a crash as soon as the clipboard action is triggered. ### Expected Result The structure should be copied to the clipboard for internal use or for pasting into other applications (via Wine's clipboard synchronization). ### Additional Notes The issue persists on a clean Wine 11.0 installation without any DLL overrides. This version of ChemSketch is very recent (Jan 2026). The terminal output shows multiple EMF_Update_MF_Xform World transform failed! errors, followed by fixme:ole:OleQueryLinkFromData ...,stub!. It appears the crash is triggered when the application attempts to populate the clipboard with OLE data and Enhanced Metafiles (EMF). I am attaching the full terminal log and backtrace as a .txt file. -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.

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[Bug 11446] New: Gangsters: Wrong 2d rendering
by wine-bugs＠winehq.org April 1, 2026

April 1, 2026

http://bugs.winehq.org/show_bug.cgi?id=11446 Summary: Gangsters: Wrong 2d rendering Product: Wine Version: 0.9.51. Platform: PC-x86-64 OS/Version: Linux Status: UNCONFIRMED Severity: enhancement Priority: P2 Component: directx-ddraw AssignedTo: wine-bugs(a)winehq.org ReportedBy: wielkiegie(a)gmail.com Created an attachment (id=10577) --> (http://bugs.winehq.org/attachment.cgi?id=10577) Wine messages when starting with OpenGL as DDraw renderer OpenGL as DirectDraw driver causes unhandled page fault when playing intro (I tried GDI for testing). When the game starts or after changing menu screen, main menu is completely black. Graphics can be visible only after pushing any button in the menu, but releasing mouse button elsewhere. Buttons doesn't contain any text and colors of whole screen are ugly. -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.

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