Hi Neil, On Wed, May 11, 2016 at 7:38 PM, Neil Williams <neil...@copycopy.cc> wrote:
> We have also gone down the forced ANGLE route after seeing too many > crashes caused by OpenGL, crashes on app start during the dynamic detection > are particularly frustrating. Intel cards seem to be the worst offender > though we were seeing them from all card types. > > When our app crashes we upload crash dumps with GPU device and vendor id > embedded in it, the plan was to be able to build a custom opengl blacklist > based off these reports. The problem we had though is that were getting > different types of crashes from lots of different device combinations and > we had no way of checking out the crashes ourselves due to not having the > hardware. > Interesting. I've wanted to have similar automatic crash dump reporting as well. Can you share your method for doing this? Thanks > > In the end we went back to selectively forcing ANGLE/software renderer > based on a blacklist we maintain ourselves, which is basically the > blacklist in openglblacklist.json along with forced software rendering for > some VMs. We see a lot less graphics layer crashes with this setup. > > We only support Vista upwards on windows mind. > > You might also be interested in bug > https://bugreports.qt.io/browse/QTBUG-52693 which caused OpenGL detection > sourced crashes even when ANGLE is forced. > > On Tue, May 10, 2016 at 3:41 PM, Michael R Nelson <mnel...@sutron.com> > 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? >> >> >> >> Thanks, >> >> Mike >> >> >> >> ------------------------------ >> Please be advised that this email may contain confidential information. >> If you are not the intended recipient, please notify us by email by >> replying to the sender and delete this message. The sender disclaims that >> the content of this email constitutes an offer to enter into, or the >> acceptance of, any agreement; provided that the foregoing does not >> invalidate the binding effect of any digital or other electronic >> reproduction of a manual signature that is included in any attachment. >> >> _______________________________________________ >> Interest mailing list >> Interest@qt-project.org >> http://lists.qt-project.org/mailman/listinfo/interest >> >> > > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest > > -- Shantanu Tushar (UTC +0530) shantanu.io
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