March 2023 - Wine-Bugs - list.winehq.org

[Bug 50277] New: Haven intro video does not play
by WineHQ Bugzilla Aug. 4, 2026

Aug. 4, 2026

https://bugs.winehq.org/show_bug.cgi?id=50277 Bug ID: 50277 Summary: Haven intro video does not play Product: Wine Version: 6.0-rc1 Hardware: x86-64 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: mfplat Assignee: wine-bugs(a)winehq.org Reporter: kai.sterker+wine(a)gmail.com Distribution: --- Created attachment 68825 --> https://bugs.winehq.org/attachment.cgi?id=68825 Debug logs with +mfplat,+gstreamer Upon testing Haven with the builtin media foundation implementation, the following error is logged, the intro movie does not play and the game is stuck at launch: 020c:err:mfplat:media_source_constructor Failed to play source, error 0. 0218:err:mfplat:bus_watch qtdemux0: Internal data stream error. 0218:err:mfplat:bus_watch qtdemux.c(6605): gst_qtdemux_loop (): /GstBin:bin0/GstDecodeBin:decodebin0/GstQTDemux:qtdemux0: streaming stopped, reason error (-5) Debug logs with +mfplat,+gstreamer attached. I'm on Ubuntu 20.04. If I can provide any other useful information please let me know. -- 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.

2 88

[Bug 33634] New: [UWIN] simple ls -l from the UWIN gives a lot of warnings
by wine-bugs＠winehq.org Aug. 4, 2026

Aug. 4, 2026

http://bugs.winehq.org/show_bug.cgi?id=33634 Bug #: 33634 Summary: [UWIN] simple ls -l from the UWIN gives a lot of warnings Product: Wine Version: 1.5.30 Platform: x86 OS/Version: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: -unknown AssignedTo: wine-bugs(a)winehq.org ReportedBy: simon.toedt(a)gmail.com Classification: Unclassified Running a simple ls -l from the UWIN (Unix emulation on Windows) toolkit in wine gives a lot of warnings. The goal is to use WINE for automated testing without having to fire up a full blown Windows system each time in VMware or real iron. Steps to test: 1. Install UWIN: > wget --http-user="I accept www.opensource.org/licenses/eclipse" --http-passwd="." 'http://www2.research.att.com/~gsf/download/beta/uwin-base.2013-02-08.win32.…' > wine uwin-base.2013-02-08.win32.i386.exe 2. Run ls -l in wine: wine 'C:\Program Files/UWIN/usr/bin/ls.exe' -l fixme:process:SetProcessShutdownParameters (00000300, 00000001): partial stub. fixme:ntdll:NtSetInformationToken unimplemented class 4 log file write failed -- remaining messages will be to the standard error 2013-05-21+12:43:18 64 2048 1 41 26 0 (UWIN) sid.c:538: SetTokenInformation failed [1:Invalid function] 2013-05-21+12:43:26 64 2048 1 41 26 0 (UWIN) spawnve.c:810: waitmsg: line=894 slot=26 pid=40-2048 ppid=1 state=RUNNING threadid=0 inexec=0x10 fixme:ntdll:NtSetInformationToken unimplemented class 4 2013-05-21+12:43:26 64 2048 1 41 26 0 (ls) sid.c:538: SetTokenInformation failed [1:Invalid function] 2013-05-21+12:43:26 64 2048 1 43 26 0 (ls) sig.c:896: init Global\UWIN.event.init.restart open failed [2:File not found] 2013-05-21+12:43:26 64 2048 1 43 26 0 (ls) sig.c:937: init Global\UWIN.mutex.init.running.38 + Global\UWIN.event.init.restart status=WAIT_FAILED [6:Invalid handle] fixme:console:GetNumberOfConsoleMouseButtons (0x77e528): stub total 201482013-05-21+12:43:26 64 2048 1 41 26 0 (ls) passwd.c:618: getdomainentry \\.\pipe\UWIN.passwd p stoe failed (open pipe) [2:File not found] 2013-05-21+12:43:27 64 2048 1 41 26 0 (ls) passwd.c:618: getdomainentry \\.\pipe\UWIN.group g BUILTIN/Administrators failed (open pipe) [2:File not found] -rwxr-xr-x 1 stoe BUILTIN/Administrators 10315673 Feb 9 09:14 uwin-base.2013-02-09.win32.i386-64 wine version is wine-1.5.30. Wine versions older than wine-1.5.30 may not work as described in bug 33619. -- 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.

2 17

[Bug 33621] New: [UWIN] ksh93 from UWIN generates a lot of fixme warnings
by wine-bugs＠winehq.org Aug. 4, 2026

Aug. 4, 2026

http://bugs.winehq.org/show_bug.cgi?id=33621 Bug #: 33621 Summary: [UWIN] ksh93 from UWIN generates a lot of fixme warnings Product: Wine Version: 1.5.30 Platform: x86 OS/Version: Linux Status: UNCONFIRMED Severity: critical Priority: P2 Component: -unknown AssignedTo: wine-bugs(a)winehq.org ReportedBy: simon.toedt(a)gmail.com Classification: Unclassified Running ksh93 (Korn Shell 93) from the UWIN (Unix emulation on Windows) toolkit generates a lot of "fixme" warnings and the shell is generally not useable. The goal is to use WINE for automated testing without having to fire up a full blown Windows system each time in VMware or real iron. Steps to test: 1. Install UWIN: > wget --http-user="I accept www.opensource.org/licenses/eclipse" --http-passwd="." 'http://www2.research.att.com/~gsf/download/beta/uwin-base.2013-02-08.win32.…' > wine uwin-base.2013-02-08.win32.i386.exe 2. Run Windows/UWIN version of ksh93: wine64 'C:\Program Files/UWIN/usr/bin/ksh.exe' fixme:process:SetProcessShutdownParameters (00000300, 00000001): partial stub. fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:ntdll:NtSetInformationToken unimplemented class 4 fixme:process:SetProcessShutdownParameters (00000300, 00000001): partial stub. fixme:ntdll:NtSetInformationToken unimplemented class 4 fixme:ntdll:NtSetInformationToken unimplemented class 4 fixme:process:SetProcessShutdownParameters (00000000, 00000001): partial stub. fixme:ntdll:NtSetInformationToken unimplemented class 4 fixme:ntdll:NtSetInformationToken unimplemented class 4 fixme:advapi:LsaOpenPolicy ((null),0x23f980,0x00000001,0x23f950) stub fixme:advapi:LsaClose (0xcafe) stub fixme:netbios:NetServerEnum Stub ((null) 100 0x23f440 -1 0x23fbb8 0x23fbc8 24 (null) (nil)) fixme:netapi32:NetGetDCName ((null), (null), 0x23f448) stub! fixme:dbghelp_dwarf:dwarf2_parse_subprogram Unhandled Tag type 0x26 at ctx(0x8834c0,L"libc.so.6"), for debug_info(abbrev:0xf70850,symt:0xfce150) fixme:dbghelp_dwarf:compute_location Only supporting one breg (r10/338 -> r8/336) fixme:dbghelp_dwarf:compute_location Only supporting one breg (r10/338 -> r8/336) fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:dbghelp_dwarf:dwarf2_parse_subprogram Unhandled Tag type 0x26 at ctx(0x8834c0,L"libc.so.6"), for debug_info(abbrev:0x20e2370,symt:0x2140480) fixme:dbghelp_dwarf:dwarf2_parse_subprogram_block Unhandled Tag type 0xf at ctx(0x8834c0,L"libc.so.6"), for debug_info(abbrev:0x21926b8,symt:(nil)) fixme:dbghelp_dwarf:dwarf2_parse_subprogram_block Unhandled Tag type 0xf at ctx(0x8834c0,L"libc.so.6"), for debug_info(abbrev:0x21926b8,symt:(nil)) fixme:dbghelp_dwarf:dwarf2_parse_subprogram_block Unhandled Tag type 0xf at ctx(0x8834c0,L"libc.so.6"), for debug_info(abbrev:0x21926b8,symt:(nil)) fixme:dbghelp_dwarf:dwarf2_parse_subprogram_block Unhandled Tag type 0xf at ctx(0x8834c0,L"libc.so.6"), for debug_info(abbrev:0x21926b8,symt:(nil)) fixme:dbghelp_dwarf:dwarf2_parse_subprogram Unhandled Tag type 0x26 at ctx(0x8834c0,L"ld-linux-x86-64.so.2"), for debug_info(abbrev:0x2914e98,symt:0x2970264) fixme:dbghelp_dwarf:dwarf2_parse_subprogram_block Unhandled Tag type 0x26 at ctx(0x8834c0,L"ld-linux-x86-64.so.2"), for debug_info(abbrev:0x2943cb0,symt:(nil)) fixme:dbghelp_dwarf:dwarf2_parse_subprogram_block Unhandled Tag type 0x26 at ctx(0x8834c0,L"ld-linux-x86-64.so.2"), for debug_info(abbrev:0x2914e90,symt:(nil)) fixme:dbghelp_dwarf:compute_location Only supporting one breg (rdx/331 -> rax/328) fixme:dbghelp_dwarf:compute_location Only supporting one breg (rdx/331 -> rax/328) fixme:dbghelp_dwarf:compute_location Only supporting one breg (rdx/331 -> rax/328) fixme:dbghelp_dwarf:compute_location Only supporting one breg (rdx/331 -> rax/328) fixme:dbghelp_dwarf:compute_location Only supporting one breg (rdx/331 -> rax/328) fixme:dbghelp_dwarf:dwarf2_parse_subprogram Unhandled Tag type 0x26 at ctx(0x8834c0,L"libgcc_s.so.1"), for debug_info(abbrev:0x36b3448,symt:0x378fa1c) fixme:dbghelp_dwarf:dwarf2_parse_subprogram Unhandled Tag type 0x26 at ctx(0x8834c0,L"libgcc_s.so.1"), for debug_info(abbrev:0x3743718,symt:0x37781b4) fixme:dbghelp_dwarf:dwarf2_parse_subprogram_block Unhandled Tag type 0x26 at ctx(0x8834c0,L"libgcc_s.so.1"), for debug_info(abbrev:0x3743658,symt:(nil)) fixme:dbghelp_dwarf:dwarf2_parse_subprogram Unhandled Tag type 0x26 at ctx(0x8834c0,L"libgcc_s.so.1"), for debug_info(abbrev:0x37425a0,symt:0x3754e38) fixme:dbghelp_dwarf:dwarf2_parse_subprogram_block Unhandled Tag type 0x15 at ctx(0x8834c0,L"kernel32<elf>"), for debug_info(abbrev:0x3824860,symt:(nil)) fixme:dbghelp_dwarf:dwarf2_parse_subprogram_block Unhandled Tag type 0xf at ctx(0x8834c0,L"kernel32<elf>"), for debug_info(abbrev:0x3824860,symt:(nil)) fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented fixme:netapi32:NetUserGetInfo Level 3 is not implemented wine version is wine-1.5.30. Wine versions older than wine-1.5.30 may not work as described in bug 33619. IMO the most pressing problems are: 1. fixme:process:SetProcessShutdownParameters (00000300, 00000001): partial stub. 2. fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented 3. fixme:netapi32:NetUserGetInfo Level 3 is not implemented 4. fixme:ntdll:NtSetInformationToken unimplemented class 4 5. fixme:netapi32:NetQueryDisplayInformation Level 1 partially implemented -- 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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[Bug 45364] New: Frostpunk
by wine-bugs＠winehq.org Aug. 2, 2026

Aug. 2, 2026

https://bugs.winehq.org/show_bug.cgi?id=45364 Bug ID: 45364 Summary: Frostpunk Product: Wine Version: 3.10 Hardware: x86 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: -unknown Assignee: wine-bugs(a)winehq.org Reporter: hewanci(a)gmail.com Distribution: --- Frostpunk is so dark that it's unplayable due to not being able to see what's happening. Steam version Staging 3.10 Arch Linux There is already a bug about glitches but I doN't know how related that is: bug 45098 -- 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.

3 29

[Bug 43474] New: Tsukihime fails fullscreen -> windowed transition
by wine-bugs＠winehq.org Aug. 2, 2026

Aug. 2, 2026

https://bugs.winehq.org/show_bug.cgi?id=43474 Bug ID: 43474 Summary: Tsukihime fails fullscreen -> windowed transition Product: Wine Version: 2.13 Hardware: x86-64 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: -unknown Assignee: wine-bugs(a)winehq.org Reporter: zaplo00(a)mailfence.com Distribution: --- Switching from fullscreen to windowed mode causes empty window or unmapped window that needs to be restored with xdotool windowmap. Tsukihime can be started in windowed mode but switching to fullscreen and back breaks it (fullscreen always works). Log with fullscreen -> windowed in main menu (after 2 splash screens) is attached, maybe this piece is the culprit?. trace:d3d:context_acquire device 0x188d08, texture (nil), sub_resource_idx 0. trace:d3d:context_enter Entering context 0x1809f8, level 1. warn:d3d:context_set_gl_context Failed to set pixel format 5 on device context 0x17004a. warn:d3d:context_set_gl_context Failed to make GL context 0x61000 current on device context 0x17004a, last error 0. warn:d3d:context_set_gl_context Trying fallback to the backup window. trace:d3d:swapchain_get_backup_dc Creating the backup window for swapchain 0x182cf0. -- 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 42084] New: Chessmaster 9000 "File Open" dialog does not list subdirectories
by wine-bugs＠winehq.org Aug. 2, 2026

Aug. 2, 2026

https://bugs.winehq.org/show_bug.cgi?id=42084 Bug ID: 42084 Summary: Chessmaster 9000 "File Open" dialog does not list subdirectories Product: Wine Version: 2.0-rc3 Hardware: x86 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: -unknown Assignee: wine-bugs(a)winehq.org Reporter: bkbk9(a)yahoo.ca Distribution: --- The "File Open" dialog in Chessmaster 9000 doesn't seem to be able to browse or go down into subdirectories of the current dir, for example when trying to load a wallpaper, an opening book or a chess engine into the game. When the dialog is launched, it won't list any subdirectories, you can only go up to the parent but then you cannot navigate back down, the child directory wouldn't be listed in the box. Likewise if you start at the root (C:\ or D:\). -- 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.

2 6

[Bug 51316] New: Office 2010 user form resize bug
by WineHQ Bugzilla Aug. 2, 2026

Aug. 2, 2026

https://bugs.winehq.org/show_bug.cgi?id=51316 Bug ID: 51316 Summary: Office 2010 user form resize bug Product: Wine-staging Version: 6.11 Hardware: x86-64 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: -unknown Assignee: wine-bugs(a)winehq.org Reporter: yuri6037(a)yuristudio.net CC: leslie_alistair(a)hotmail.com, z.figura12(a)gmail.com Distribution: --- When you attempt to resize a user form on an EXCEL macro in both O2007 and O2010 the window freezes and you have to open back the user form. However when you change the value of "width" and "height" manually it does seem to work. This happens on both NVIDIA graphics and Intel Graphics no idea about AMD but I expect the same bug. When running EXCEL from terminal, I can see two fixme logs that occurs everytime I click on the corners of a user form: 0154:fixme:msimtf:ActiveIMMApp_OnDefWindowProc Stub (000C0156 47 0 21eaa4) 0154:fixme:msimtf:ActiveIMMApp_OnDefWindowProc Stub (000C0156 3 0 405ed) This occurs when I release the mouse button: 0154:fixme:msimtf:ActiveIMMApp_OnDefWindowProc Stub (000C0156 47 0 21eaa4) 0154:fixme:msimtf:ActiveIMMApp_OnDefWindowProc Stub (000C0156 3 0 4061f) -- 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.

2 6

[Bug 46201] New: Xenia fails to initialize graphics pipeline
by wine-bugs＠winehq.org Aug. 2, 2026

Aug. 2, 2026

https://bugs.winehq.org/show_bug.cgi?id=46201 Bug ID: 46201 Summary: Xenia fails to initialize graphics pipeline Product: vkd3d Version: 1.1 Hardware: x86-64 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: vkd3d Assignee: wine-bugs(a)winehq.org Reporter: chridye(a)gmail.com Distribution: --- Created attachment 62874 --> https://bugs.winehq.org/attachment.cgi?id=62874 backtrace from today (nov 26 2018) the latest build of xenia can be found at https://ci.appveyor.com/api/projects/benvanik/xenia/artifacts/xenia-d3d12.z… I got this error in the terminal window: vkd3d_dxbc_compiler_get_register_info: Assertion `reg->idx[0].offset < compiler->temp_count' failed. A quick search on google says this was some graceful way of dealing with unimplemented registers. That change was proposed on Jan 9. http://wine.1045685.n8.nabble.com/PATCH-vkd3d-1-7-libs-vkd3d-shader-Handle-… The version of vkd3d I'm using was built from source using a commit from today (nov 26). I'm on ubuntu 18.10 without vkd3d installed via package manager. wine was ran in 64-bit mode and was also built from source today after doing a `git pull`. The exact command I ran was `wine64 xenia.exe.` I have attached the back trace. -- 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.

3 9

[Bug 46003] New: glibc (libpthread.so.0) crashes 64-bit FPUs and freezes screen in 32-bit applications
by wine-bugs＠winehq.org Aug. 2, 2026

Aug. 2, 2026

https://bugs.winehq.org/show_bug.cgi?id=46003 Bug ID: 46003 Summary: glibc (libpthread.so.0) crashes 64-bit FPUs and freezes screen in 32-bit applications Product: Wine Version: 3.15 Hardware: x86-64 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: -unknown Assignee: wine-bugs(a)winehq.org Reporter: wine.fixes(a)gmail.com Distribution: --- The 64-bit glibc libraries (specifically, libpthread.so.0 - version 2.27) apparently use the sysenter / syscall assembly commands in order to initiate the __libc_write() system calls, rather than the "int 0x80" command that the 32-bit libraries use. This is fine for 64-bit Windows applications in Wine, but seems to cause a CPU exception when running certain 32-bit applications on a 64-bit Intel CPU (such as the Core i5), which - in turn - seems to cause stack underflow and NaN errors on the FPU unit under certain circumstances, thus preventing the screen from updating whenever floating point calculations are required in order to calculate the final screen position. It can also cause unhandled exceptions and cause the application to terminate entirely in some applications. I am yet to identify any commercial applications which suffer from this problem, but I have written several simple SDL and Win32 graphical programs (compiled with version 0.9.25 of the TCC Tiny C Compiler) which demonstrate the effects. I have provided sample code of one such application below. This problem also appears to manifest on 64-bit Intel CPUs even when using 32-bit operating systems (such as Ubuntu 18.04-i386), but I can confirm from testing that the 32-bit QEMU virtual machine appears to be unaffected (and, presumably, so are 'real' 32-bit CPUs too). I have been told that 64-bit AMD CPUs (unlike 64-bit Intel CPUs) will not trigger an error when using sysenter / syscall in 32-bit mode, but I am yet to confirm this as I currently only have access to Intel CPUs. Incidentally, I believe that Intel themselves advise against sysenter / syscall in 32-bit mode. I have been able to temporarily fix the problem from within Wine by calling the assembly command "fninit" (which resets the FPU) at the start of the DC_UpdateXforms() function in dlls/gdi32/dc.c, or by calling the "fninit" command from within the application (or, in some circumstances, simply moving the window across the screen), but obviously it would be preferable to fix the error at source from within the glibc libraries... I realise that this is not an error with the Wine source code itself per se, but I have registered it here in case anybody else encounters the same problem in future. SAMPLE CODE (Note: This code requires the 32-bit v.0.9.25 or v.0.9.24 version of the TCC Tiny C Compiler, as the error does not appear to manifest on newer versions) This simple program should display a window which changes colour between red, green, and blue every 0.5 seconds on Windows; however, when run from within Wine on 64-bit Intel CPUs, it appears to freeze on the first colour due to the FPU encountering an error during the __libc_write() routine #include <windows.h> #include <string.h> MSG msg; WNDCLASS wc; HWND hwnd; BITMAPINFO bmp = { { sizeof(BITMAPINFOHEADER), 400, 400, 1, 32 } }; unsigned char *pBits = NULL; HDC hdc, compatibleDC; HBITMAP dib_section; float f = 1.0f; unsigned char color[3][4] = { {255, 0, 0, 255}, {0, 255, 0, 255}, {0, 0, 255, 255} }; unsigned char current_color = 0; unsigned int i; int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { ZeroMemory(&wc, sizeof wc); wc.hInstance = hInstance; wc.lpfnWndProc = (WNDPROC)DefWindowProc; wc.lpszClassName = "Test App"; if (RegisterClass(&wc) == FALSE) return 0; hwnd = CreateWindow("Test App", "Test App", WS_OVERLAPPEDWINDOW|WS_VISIBLE, CW_USEDEFAULT, CW_USEDEFAULT, 400, 400, 0, 0, hInstance, 0); hdc = GetWindowDC(hwnd); compatibleDC = CreateCompatibleDC(hdc); dib_section = CreateDIBSection(NULL, &bmp, DIB_RGB_COLORS, (VOID**)&pBits, NULL, (DWORD)NULL); SelectObject(compatibleDC, dib_section); while(TRUE) { while(PeekMessage(&msg,NULL,0,0,PM_REMOVE)) { if (msg.message == WM_QUIT) break; TranslateMessage(&msg); DispatchMessage(&msg); } /* The two float operations below will trigger the error */ f += 1.0f; f -= 1.0f; for(i=0; i < (400 * 400 * 4); i+=4) memcpy(&pBits[i], &color[current_color][0], 4); /* If called here, the "fninit()" assembly routine will reset the FPU and enable the screen to update */ // __asm__ volatile ("fninit"); BitBlt(hdc, 0, 0, 400, 400, compatibleDC, 0, 0, SRCCOPY); current_color++; if (current_color >= 3) current_color = 0; Sleep(500); } return msg.wParam; } -- 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.

2 1

[Bug 24505] New: Plants vs Zombies: Low FPS on seeds menu
by wine-bugs＠winehq.org Aug. 2, 2026

Aug. 2, 2026

http://bugs.winehq.org/show_bug.cgi?id=24505 Summary: Plants vs Zombies: Low FPS on seeds menu Product: Wine Version: 1.3.3 Platform: x86 OS/Version: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: -unknown AssignedTo: wine-bugs(a)winehq.org ReportedBy: adys.wh(a)gmail.com The seeds menu (presented at the start of each game) in Plants vs Zombies GOTY edition (Steam) makes the game lag noticeably. nvidia 9800gtx+ / 260.xx drivers (official binaries) / xorg 1.9 Happens both on fullscreen and windowed, only tested in virtual desktop. No relevant console output. -- 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.

3 29