Re: Unexpected visual effect under GNOME Shell

2018-02-09 Thread Michael Thayer
08.02.2018 15:46, Olivier Fourdan wrote: [...] > I think this is a different issue from bug 767212, so IMHO best would be > to file a new issue in https://gitlab.gnome.org/GNOME/mutter and post > the existing reproducer you guys provided in bug 767212. Thank you, done: https://gitlab.gnome.org/GN

Re: Unexpected visual effect under GNOME Shell

2018-02-08 Thread Olivier Fourdan
Hi Sergey, On Thu, Feb 8, 2018 at 2:18 PM, Sergey Dubov wrote: > I can say for sure Qt::FrameLessWindowHint is not override redirect Qt > flag on X11. > > Such windows are pretty much manageable by various WMs, accepts > activation, keyboard and mouse input (and produces other issues because of

Re: Unexpected visual effect under GNOME Shell

2018-02-08 Thread Olivier Fourdan
Hi, On Thu, Feb 8, 2018 at 1:34 PM, Michael Thayer wrote: > We created a test case application for Olivier and he decided it is a > different case after all. xprop says that the black window is > WM_NAME-ed "mutter guard window". > Yeah, FWIW, in the Qt example provided in bug 767212, if I rem

Re: Unexpected visual effect under GNOME Shell

2018-02-08 Thread Michael Thayer
We created a test case application for Olivier and he decided it is a different case after all. xprop says that the black window is WM_NAME-ed "mutter guard window". Regards Michael 08.02.2018 07:58, Michael Thayer wrote: > Hello Jonas, > > Thank you, that does look like it. I will tag onto th

Re: Unexpected visual effect under GNOME Shell

2018-02-07 Thread Michael Thayer
Hello Jonas, Thank you, that does look like it. I will tag onto that bug and see what comes of it. Regards Michael 07.02.2018 04:21, Jonas Ådahl wrote: > The flashing black rectangle you are seeing could possibly be > https://bugzilla.gnome.org/show_bug.cgi?id=767212. > > > Jonas > > On Tue,

Re: Unexpected visual effect under GNOME Shell

2018-02-06 Thread Jonas Ådahl
The flashing black rectangle you are seeing could possibly be https://bugzilla.gnome.org/show_bug.cgi?id=767212. Jonas On Tue, Feb 06, 2018 at 04:16:51PM +0100, Michael Thayer wrote: > Hello, > > Wondering if anyone can help us with the following question. In > VirtualBox we need for various r

Unexpected visual effect under GNOME Shell

2018-02-06 Thread Michael Thayer
Hello, Wondering if anyone can help us with the following question. In VirtualBox we need for various reasons to know what the usable area of each screen is - that translates as the largest rectangle which fits on that screen without obscuring any panels or similar. We find that out by mapping a