[Interest] Problems with graphics library auto-detect on Windows

[Michael R Nelson]

Hi Thiago,

I will create reports for those we managed to write down, and any that come about, but we will likely switch to forcing ANGLE.

Thanks,
Mike

-----Original Message-----
From: Interest [mailto:interest-bounces+mnelson=sutron.com at qt-project.org] On Behalf Of Thiago Macieira
Sent: Tuesday, May 10, 2016 1:00 PM
To: interest at qt-project.org
Subject: Re: [Interest] Problems with graphics library auto-detect on Windows

On terça-feira, 10 de maio de 2016 10:41:52 PDT Michael R Nelson wrote:
> Hi all,
>
> Our app is QML based and uses Qt Quick Controls. We build for Windows,
> OS X, iOS, and Android.
>
> As you know, Qt auto-selects a graphics library at startup (OpenGL,
> ANGLE, or Mesa llvmpipe). About 1 in 15 of our users report our app
> fails during this auto-detect process on Windows. Most failures appear
> to be poor OpenGL support in the card/drivers, but sometimes the issue
> is "vsprintf_s" export not found error, when running on XP. Updating
> drivers is rarely a fix for these scenarios.
>
> We are coming to the conclusion we should force the use of ANGLE on
> Windows
> 7 and above, and force SoftOpenGL on XP. Have others also come to this
> conclusion? Does anyone have any helpful tips to share on this issue?

Hello Mike

Can you create bug reports with as much information you've got about the systems where the OpenGL driver was bad and yet Qt picked the native driver?
We can adjust the detection heuristics.

As for Windows XP, it's up to you. It's not supported anymore.

--
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center

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