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

[Bug 59401] New: AmCap: No preview from webcam when enabled
by WineHQ Bugzilla Feb. 21, 2026

Feb. 21, 2026

http://bugs.winehq.org/show_bug.cgi?id=59401 Bug ID: 59401 Summary: AmCap: No preview from webcam when enabled Product: Wine Version: 11.2 Hardware: x86-64 URL: https://github.com/microsoft/Windows-classic-samples/t ree/main/Samples/Win7Samples/multimedia/directshow/cap ture/amcap OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: quartz Assignee: wine-bugs(a)list.winehq.org Reporter: schmidt.tyler(a)protonmail.com Distribution: --- Created attachment 80370 --> http://bugs.winehq.org/attachment.cgi?id=80370 Complete terminal output Wine fails to render a preview of the webcam when enabling "Options->Preview" from the AmCap sample compiled from a Windows system (Windows 11 in this case). The webcam is an OBS Virtual Camera. Verified that this works as-intended on Windows 11, but not through 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 59434] New: mozglue bypasses NtCreateThreadEx, leading to uninitialized x87/SSE FPU state and SIGFPE (0xc000008f) in Gecko
by WineHQ Bugzilla Feb. 20, 2026

Feb. 20, 2026

http://bugs.winehq.org/show_bug.cgi?id=59434 Bug ID: 59434 Summary: mozglue bypasses NtCreateThreadEx, leading to uninitialized x87/SSE FPU state and SIGFPE (0xc000008f) in Gecko Product: Wine-gecko Version: unspecified Hardware: x86-64 OS: Linux Status: UNCONFIRMED Severity: major Priority: P2 Component: wine-gecko-unknown Assignee: jacek(a)codeweavers.com Reporter: Cruzer19993(a)gmail.com Distribution: --- Created attachment 80407 --> http://bugs.winehq.org/attachment.cgi?id=80407 Combined winedbg showing info about FPU settings of gecko thread, svg rendering thread, and backtrace In wine-gecko, mozglue creates threads by calling the host's pthread_create directly instead of going through Wine's internal thread management (NtCreateThreadEx). Because these threads are spawned outside of Wine's lifecycle management, they do not receive the standard Windows FPU environment initialization. Specifically, new threads inherit the host's default Linux FPU state rather than the Windows-standard FPU Control Word (0x037f) and MXCSR (0x1f80). When Gecko’s layout engine (xul.dll) performs transcendental math operations (such as FSINCOS), it triggers a SIGFPE (translated to a 0xc000008f Inexact Result exception) because the precision exceptions are not correctly masked. Steps to Reproduce: Run an application utilizing wine-gecko with Direct2D SVG rendering enabled (e.g., Solid Edge 2026 Ribbon UI). Trigger a complex SVG render or layout calculation that invokes transcendental math instructions in xul.dll. The application will crash with 0xc000008f (Inexact Result) or a SIGFPE when a math instruction is executed on a thread spawned by mozglue. Actual Result: Threads created via mozglue have uninitialized or "dirty" FPU status/control flags, leading to catastrophic floating-point exceptions in Gecko components. Expected Result: Every thread, including those spawned by mozglue, should have an initialized FPU state consistent with Windows defaults (0x037f) to prevent exceptions during standard math operations. Proof of Concept / Workaround: I have verified that preloading a custom wrapper to intercept pthread_create and explicitly calling fninit (and potentially ldmxcsr) at the start of the thread resolves the stability issues entirely. -- 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 58582] New: Rainmeter 4.5.23: crashes on X11 after refreshing default skin Clock.ini
by WineHQ Bugzilla Feb. 20, 2026

Feb. 20, 2026

http://bugs.winehq.org/show_bug.cgi?id=58582 Bug ID: 58582 Summary: Rainmeter 4.5.23: crashes on X11 after refreshing default skin Clock.ini Product: Wine Version: unspecified Hardware: x86-64 URL: https://github.com/rainmeter/rainmeter/ OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: win32u Assignee: wine-bugs(a)winehq.org Reporter: castelei(a)yahoo.com Regression SHA1: 980a2e3c65bee1422adbe06fead768669835e3e1 Distribution: --- Created attachment 79106 --> http://bugs.winehq.org/attachment.cgi?id=79106 WINEDEBUG=+synchronous,+seh Rainmeter 4.5.23 Reproduction: 1) Click on the Rainmeter icon on the system tray to open the 'Manage Rainmeter' window. 2) Click on the 'Active skins' drop-down list and select illustro\Clock\Clock.ini 3) Click the 'Refresh' button to the right. This X11 error prints as the application crashes if run without +synchronous: X Error of failed request: BadMatch (invalid parameter attributes) Major opcode of failed request: 139 (RENDER) Minor opcode of failed request: 4 (RenderCreatePicture) Serial number of failed request: 15285 Current serial number in output stream: 15292 Found this regression on a merged patch newer than 10.12 (the newest development release at this time) while working on an unrelated bug. -- 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 59404] New: Framemaker 8 crashes due to patch to sysparams.c
by WineHQ Bugzilla Feb. 20, 2026

Feb. 20, 2026

http://bugs.winehq.org/show_bug.cgi?id=59404 Bug ID: 59404 Summary: Framemaker 8 crashes due to patch to sysparams.c Product: Wine Version: 11.2 Hardware: x86-64 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: win32u Assignee: wine-bugs(a)list.winehq.org Reporter: ulrich.gemkow(a)ikr.uni-stuttgart.de Distribution: --- Created attachment 80372 --> http://bugs.winehq.org/attachment.cgi?id=80372 Backtrace shown Framemaker 8 crashes since the following patch (found by bisect) commit 3d3a95f4742ab5091b7512e444e2e741b7017092 (HEAD) Author: Esme Povirk <esme(a)codeweavers.com> Date: Mon Feb 2 23:17:21 2026 +0000 win32u: Actually return HKL for SPI_GETDEFAULTINPUTLANG. Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=40435 dlls/win32u/sysparams.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) Reverting this patch solves the problem. Attached is the backtrace which is shown for the crash. -- 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 59232] New: Flight Simulator 2000 has flickers and performance issues when rendering the 3D world with a 2D instrument panel in windowed mode
by WineHQ Bugzilla Feb. 20, 2026

Feb. 20, 2026

http://bugs.winehq.org/show_bug.cgi?id=59232 Bug ID: 59232 Summary: Flight Simulator 2000 has flickers and performance issues when rendering the 3D world with a 2D instrument panel in windowed mode Product: Wine Version: 11.0-rc5 Hardware: x86-64 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: -unknown Assignee: wine-bugs(a)list.winehq.org Reporter: winehq(a)mrpowergamerbr.com Distribution: --- When playing Flight Simulator 2000 has flickers and performance issues when rendering the 3D world with a 2D instrument panel This regression has a bit of history because there are multiple regressions that happened: 1. Versions before e5e2fd0a5209b0d07233d294e0ace5f1e41dfed5 work fine 2. After that commit, the game was rendering a pure black 3D view when playing in "windowed" mode 3. Between e5e2fd0a5209b0d07233d294e0ace5f1e41dfed5 and now, there was a change that made the game actually render "correctly", but with a lot of flickers and performance issues. (I haven't had the time to bisect what commit fixed the black screen and started causing the flickers and performance issues) One curious thing that I found is that, when playing the game in full screen in older Wine versions, even versions that does not contain the regression, if you put the game in fullscreen the game renders, albeit when using the default view (the one with the 2D instrument panel) it has the same slow downs that are present in the newer Wine versions when playing in windowed mode with the default view. So maybe the code path is related? There is also a maybe related regression, where the game also does not work in full screen in newer versions. Here's a video demonstrating the issue, first running it with Wine 10.10, then running with Wine 11.0-rc5: https://youtu.be/pd8FQgbpM8s The game does not work with any of the graphic wrappers I've tested (D7VK and dxwrapper). Attention: When testing FS2000 via Wine, you must set the Windows version to Windows 2000, if you don't, the game will crash with an assertion error! -- 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 54610] New: fusion:asmcache - 32-bit calls to InstallAssembly(..., NULL) crash on Windows
by WineHQ Bugzilla Feb. 20, 2026

Feb. 20, 2026

https://bugs.winehq.org/show_bug.cgi?id=54610 Bug ID: 54610 Summary: fusion:asmcache - 32-bit calls to InstallAssembly(..., NULL) crash on Windows Product: Wine Version: unspecified Hardware: x86-64 OS: Windows Status: NEW Severity: normal Priority: P2 Component: fusion Assignee: wine-bugs(a)winehq.org Reporter: fgouget(a)codeweavers.com fusion:asmcache - 32-bit calls to InstallAssembly(..., NULL) crash on Windows: asmcache.c:846: this is the last test seen before the exception 19e4:asmcache: unhandled exception c0000005 at 0095C478 See https://test.winehq.org/data/patterns.html#fusion:asmcache The crash only happens in the 32-bit w11pro64 tests which represents 100% of the cases where the test actually runs: * The only VM that has the needed fusion dll is w11pro64. * The dll was installed by running the dotnetfx-1.1.exe installer [1] which is only available in 32-bit format. Thus only the 32-bit dll is available and the 64-bit test is skipped. The crash happens in the following call: hr = IAssemblyCache_InstallAssembly(cache, 0, L"wine.dll", NULL); But skipping this call just moves the crash to the next InstallAssembly() call. It's not clear whether the crash is caused by the NULL RefData pointer: the crash still happens if I pass a non-NULL but pretty empty FUSION_INSTALL_REFERENCE structure (in particular szNonCannonicalData == NULL). [1] https://wiki.winehq.org/Wine_TestBot_VMs#fusion.2C_msvcr71 -- 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 50449] New: Program freezes if both keyboard and mouse is used at the same time
by WineHQ Bugzilla Feb. 20, 2026

Feb. 20, 2026

https://bugs.winehq.org/show_bug.cgi?id=50449 Bug ID: 50449 Summary: Program freezes if both keyboard and mouse is used at the same time Product: Wine Version: 6.0-rc5 Hardware: x86 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: directx-dinput Assignee: wine-bugs(a)winehq.org Reporter: g0re(a)null.net Distribution: --- Created attachment 69063 --> https://bugs.winehq.org/attachment.cgi?id=69063 console output from version 5.22 Zdaemon 1.10.15 - a DOOM source port http://downloads.zdaemon.org/zdaemon11015_win32_bin.7z If only keyboard is used, works ok If only mouse is used, works ok Program freezes if both keyboard and mouse is used at the same time. Issue both in windowed and fullscreen mode. Until version 5.14, works fine. Occurs from wine version 5.15 to version 6.0-rc5 (tested every version between) Can do a simple test with (need an IWAD): $ wine zdaemon.exe -iwad DOOM2.WAD -skill 4 +map map01 -- 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 59362] New: Crashes & other failures with Windows Imaging
by WineHQ Bugzilla Feb. 20, 2026

Feb. 20, 2026

http://bugs.winehq.org/show_bug.cgi?id=59362 Bug ID: 59362 Summary: Crashes & other failures with Windows Imaging Product: Wine Version: 11.1 Hardware: x86-64 OS: Linux Status: UNCONFIRMED Severity: major Priority: P2 Component: windowscodecs Assignee: wine-bugs(a)list.winehq.org Reporter: p(a)perkele.cc Distribution: --- Created attachment 80297 --> http://bugs.winehq.org/attachment.cgi?id=80297 Repro C++ Verified on: Fedora 43 / x86_64 / Wine 11.1 Run attached program. Exact failure scenario varies between configurations - 32bit/64bit, static/DLL runtime. Sighted: crashes, E_INVALIDARG, nonsensical values given by Gdiplus immediately after using Windows Imaging. This program - as far as I know - never fails on actual Windows machine, unless somehow entirely missing JPEG decoder. Included test data is JPEG, but image format doesn't seem to be a factor, tested PNG, results seemed the same. -- 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 59428] New: Amazon Chime 5.23 installer fails
by WineHQ Bugzilla Feb. 20, 2026

Feb. 20, 2026

http://bugs.winehq.org/show_bug.cgi?id=59428 Bug ID: 59428 Summary: Amazon Chime 5.23 installer fails Product: Wine Version: 11.2 Hardware: x86 OS: Linux Status: NEW Severity: normal Priority: P2 Component: mscoree Assignee: wine-bugs(a)list.winehq.org Reporter: alexhenrie24(a)gmail.com Distribution: --- Created attachment 80398 --> http://bugs.winehq.org/attachment.cgi?id=80398 Terminal output When I run the installer, it prints "System.ArgumentException: Value does not fall within the expected range" to the terminal and shows an error dialog that says "Installation has failed". Complete terminal output is attached. `winetricks dotnet48` fixes it. $ sha256sum Chime-5.23.32091.exe ca6090996627cbc5ddd135000c81639cf21bde0e363ceeea8a879d5a3837d417 -- 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 58911] New: doaxvv(DMM) occasionally crashes (WMV playback bug)
by WineHQ Bugzilla Feb. 20, 2026

Feb. 20, 2026

http://bugs.winehq.org/show_bug.cgi?id=58911 Bug ID: 58911 Summary: doaxvv(DMM) occasionally crashes (WMV playback bug) Product: Wine Version: 10.18 Hardware: x86-64 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: quartz Assignee: wine-bugs(a)winehq.org Reporter: axis6404(a)proton.me Distribution: --- Created attachment 79591 --> http://bugs.winehq.org/attachment.cgi?id=79591 backtrace.txt DOAXVV crashed when I pulled the gacha. I'm attaching the backtrace.txt file. The crash occurred at https://github.com/wine-mirror/wine/blame/1e998672cff00f8ff7628aaf9cda60263…. Crashes do not occur in Wine 10.17. Crashes occur starting from Wine 10.18. -- 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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