[Interest] Windows: "loadlibrary failed with error 87" on a configuration with a fake video card?

Björn Schäpers qt-maillist at hazardy.de
Fri Mar 18 21:21:57 CET 2022

If you can use the Process Monitor from SysInternals you can also see which 
library should be loaded.

But I don't know it that has an command line interface.

Am 18.03.2022 um 05:19 schrieb Alexander Dyagilev:
> Yes. But what I meant is that it has to be triggered by Qt somehow.
> As a first attempt I asked the user to set QT_OPENGL env var to "software". 
> This did not help. So it's probably not related to OpenGL.
> Anyway, thanks to Thiago Macieira, I asked the user to send me the dump file. 
> Let's see. :)
> On 3/18/2022 6:52 AM, Henry Skoglund wrote:
>> On 2022-03-18 04:41, Thiago Macieira wrote:
>>> On Thursday, 17 March 2022 19:50:45 PDT Alexander Dyagilev wrote:
>>>> This error message is shown by Windows OS when it's failed to load a
>>>> library the process sayed it to load.
>>>> I.e. Qt calls LoadLibrary (directly, or by loading some other modules
>>>> which calls it to load another modules they depends on).
>>>> Short googling tells that it's an graphics card driver related issue
>>>> (e.g. https://github.com/spyder-ide/spyder/issues/10084).
>>>> But, maybe there is some known work around for this...
>>> If you can generate a backtrace from the application at the moment that dialog
>>> is shown, it can help pinpoint what was being loaded and where from. There are
>>> too many LoadLibrary in the source code to guess which one has incorrect
>>> parameters.
>> Hi, note: it's not certain that the LoadLibrary error is from Qt, for example 
>> a similar error:
>> "Load Library failed with error 126: The specified module could not be 
>> found." was found to be from within the bowels of Windows itself (non-Qt apps 
>> also got this error).
>> More here about error 126: 
>> https://forum.qt.io/topic/132880/qt-creator-error-126-running-on-windows-10-via-rdp
>> _______________________________________________
>> Interest mailing list
>> Interest at qt-project.org
>> https://lists.qt-project.org/listinfo/interest
> _______________________________________________
> Interest mailing list
> Interest at qt-project.org
> https://lists.qt-project.org/listinfo/interest

More information about the Interest mailing list