Mailing List Archive

#13483: Wayland in Fedora 31 Beta does not allow focus grabbing from the compostier
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: (none)
Type: Bug Report - General | Status: new
Priority: major | Milestone: needs_triage
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------

Comment (by Gary Buhrmaster):

In *theory* fixed with later Qt and later xdg-shell (I think Qt 5.12
(possibly backported to Qt 5.11) and weston 6). However, F31 beta's may
be problematic in other ways. Is it reproducable on F30 stable?

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:1>
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#13483: Wayland in Fedora 31 Beta does not allow focus grabbing from the compostier
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: (none)
Type: Bug Report - General | Status: new
Priority: major | Milestone: needs_triage
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------

Comment (by jayjaytay):

I can confirm that I'm getting the same error under Wayland/Fedora 31
final with the following packages installed:

{{{
qt5-qtwayland-5.12.5-2.fc31.x86_64
mutter-3.34.1-4.fc31.x86_64
weston-7.0.0-2.fc31.x86_64
}}}

MythTV works fine under Xorg, however.

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:2>
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#13483: Wayland in Fedora 31 Beta does not allow focus grabbing from the compostier
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: mark-kendall
Type: Bug Report - General | Status: assigned
Priority: major | Milestone: 31.0
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------
Changes (by Stuart Auchterlonie):

* owner: (none) => mark-kendall
* status: new => assigned
* milestone: needs_triage => 31.0


Comment:

Mark,

is this something we can take care of in your OpenGL rewrite,
or do we need to address this separately?


Regards
Stuart

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:3>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: mark-kendall
Type: Bug Report - General | Status: assigned
Priority: major | Milestone: 31.0
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------

Comment (by Stuart Auchterlonie):

Also crashes, see #13498

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:4>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: mark-kendall
Type: Bug Report - General | Status: assigned
Priority: major | Milestone: 31.0
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------

Comment (by mark-kendall):

From the description, I'm not sure what the actual reported issue is here.

For me, in limited testing using master, mythfrontend starts as normal but
the contents of the screen are not displayed. If I navigate as normal (by
guesswork) to a playback screen, playback is fine and the UI is then
displayed normally after exiting playback.

So the 'qt.qpa.wayland: Wayland does not support
QWindow::requestActivate()' message *may* be a red herring - but somewhere
we are triggering the correct behaviour when either entering or exiting
playback.

If I force the use of the Qt painter, everything is fine (but no video
playback)

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:5>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: mark-kendall
Type: Bug Report - General | Status: assigned
Priority: major | Milestone: 31.0
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------

Comment (by mark-kendall):

Oops - forgot to reference this in commit.

Should be fixed by:

https://github.com/MythTV/mythtv/commit/f42ae424cd54d356b6aa93625e83dcde99129a8f

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:6>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: mark-kendall
Type: Bug Report - General | Status: closed
Priority: major | Milestone: 31.0
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution: Fixed
Keywords: | Ticket locked: 0
----------------------------------+------------------------------
Changes (by mark-kendall):

* status: assigned => closed
* resolution: => Fixed


Comment:

Rendering works without issue on Wayland with master/v31 - although the
requestActivate warnings are still received - they do not appear to be an
issue.

Note: the fix applied to master/v31 cannot be backported as the code has
changed too much - and a similar fix is unlikely to work with the old code
regardless.

If there is still an issue, please open a new ticket.

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:7>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: mark-kendall
Type: Bug Report - General | Status: new
Priority: major | Milestone: 31.0
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------
Changes (by mark-kendall):

* status: closed => new
* resolution: Fixed =>


Comment:

At least 2 reports that this is still an issue.

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:8>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: mark-kendall
Type: Bug Report - General | Status: new
Priority: major | Milestone: 31.0
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------
Changes (by knutsondc):

* Attachment "mythfrontend.20200601225213.16892.log" added.


--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: mark-kendall
Type: Bug Report - General | Status: new
Priority: major | Milestone: 31.0
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------

Comment (by knutsondc):

Mark,

I've added my mythfrontend logfile to the list of attachments. Let me know
if you want/need anything else from me. Thanks!

Darron

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:9>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: mark-kendall
Type: Bug Report - General | Status: new
Priority: major | Milestone: 31.1
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------
Changes (by mark-kendall):

* milestone: 31.0 => 31.1


--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:10>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: mark-kendall
Type: Bug Report - General | Status: new
Priority: major | Milestone: 31.1
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------

Comment (by panzerfather):

I can confirm that the GUI problem reported in comment:5:ticket:13483 also
affects mythfrontend on Fedora 32. But on F32 no theme painter workaround
(OpenGL, VAAPI or QT) is functionable to show the GUI. Video-Playback is
functional and also the GUI is visible while a video is playing (e.g. when
pausing it). But after you go back, only a black window is painted again.

So you have to use XOrg for a fully functional mythfrontend right now.

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:11>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: Mark Kendall
Type: Bug Report - General | Status: new
Priority: major | Milestone: 31.1
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------

Comment (by Klaas de Waal):

I have done a clean install of Fedora 32 on my laptop. I have compiled
today's master on this machine. The problem is that both mythtv-setup and
mythfrontend do not show anything on the screen and both do freeze the GUI
while waiting forever for input until killed fro a terminal outside the
GUI.

The Fedora install is completely default/out-of-the-box.

This can probably be fixed by changing from the default Wayland to X11 but
I would like MythTV to run on a default Fedora 32 installation, just like
VLC.
What is the way forward to achieve this?

I can help with debugging but I am not really familiar with this part of
the code.

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:12>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: Mark Kendall
Type: Bug Report - General | Status: new
Priority: major | Milestone: 31.1
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------

Comment (by Klaas de Waal):

A workaround, found in https://doc.qt.io/qt-5/wayland-and-qt.html, is to
start the application with the **-platform xcb** option, as in:

{{{
mythtv-setup -platform xcb
mythfrontend -platform xcb

}}}
This does actually work, both for the GUI and for video playback.
However, as I understand it, this should not be necessary, because the
documentation says:
{{{
Qt clients can run on any Wayland compositor, including Weston, the
reference compositor developed as part of the Wayland project.
}}}

The default desktop in Fedora 32 is Gnome and that uses another
compositor.

When starting the Weston compositor in a separate session, after creating
a configuration file that specifies X11 support:
{{{
[klaas@MyZen mythtv-master]$ cat ~/.config/weston.ini
[core]
modules=xwayland.so

}}}
then mythtv-setup starts OK.

If a Qt5 application should be able to run on Wayland directly without the
X11 layer then we should figure out which Qt widgets, or which use of the
Qt widgets, does cause the problems.

If the statement "Qt clients can run on any Wayland compositor" does
implicate "with the X11 layer" then the "-platform xcb" option can maybe
built into mythtv as default.

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:13>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: Mark Kendall
Type: Bug Report - General | Status: new
Priority: major | Milestone: 31.1
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------

Comment (by Gary Buhrmaster):

You may wish to try something like
{{{
QT_WAYLAND_SHELL_INTEGRATION=wl-shell mythtv-setup
}}}
If that works (well, the windows opens), that indicates you are likely
experiencing one of the various Qt5/qt5wayland/compositor issues that have
been floating around for some time (I have lost track of them all, and
they tend to be hidden inside various bug reports regarding fullscreen or
wayland or xdg-shell v6, etc.).

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:14>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: Mark Kendall
Type: Bug Report - General | Status: new
Priority: major | Milestone: 31.1
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------

Comment (by Gary Buhrmaster):

Oh, and while you likely have it installed, I think for Fedora you need to
make sure that the qt5-qtwayland package is installed which provides the
integration (every distro names the various packages slightly
differently).

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:15>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: Mark Kendall
Type: Bug Report - General | Status: new
Priority: major | Milestone: 31.1
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------

Comment (by Klaas de Waal):

The qt5-qtwayland package is installed. Probably done by ansible as part
of the "build from source" steps.

Starting mythtv-setup like this:
{{{
QT_WAYLAND_SHELL_INTEGRATION=wl-shell mythtv-setup
}}}
does work but the graphics is not correct; the underlying terminal window
is visible through the unselected menu items. Picture is attached.

Starting mythtv-setup like this:

{{{
mythtv-setup -platform xcb

}}}
does work with correct graphics.

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:16>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: Mark Kendall
Type: Bug Report - General | Status: new
Priority: major | Milestone: 31.1
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------
Changes (by Klaas de Waal):

* Attachment "Screenshot from 2020-07-26 12-46-11.png" added.

Transparency in non-selected menu items when started with
"QT_WAYLAND_SHELL_INTEGRATION=wl-shell mythtv- setup"

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: Mark Kendall
Type: Bug Report - General | Status: new
Priority: major | Milestone: 31.1
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------

Comment (by Gary Buhrmaster):

I suspect the transparency is a MythTV issue with compositors, as the
theme you are using specifies an alpha transparency which gets passed to
the parent. I am not a Qt UI expert, but I suspect that MythTV needs to
use something like autoFillBackground, or one of the myriad of other Qt
attributes for a widget.

In my copious free time (i.e. don't expect anything soon-ish) I might try
a few quick things, but I really don't do UIs (I am a cli person).

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:17>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: Mark Kendall
Type: Bug Report - General | Status: new
Priority: major | Milestone: 31.1
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------

Comment (by Mark Kendall):

re transparency:-

https://github.com/MythTV/mythtv/commit/9affd3aa74d251fca1d0e06a5c1875fd866cfde9
#diff-ce45e1c524369d8ab31df7b89c2b74af

may help. If someone can test and confirm, I can backport that at least.

Otherwise, I can't test wayland until a new drive arrives and I've rebuilt
my main dev machine.

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:18>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: Mark Kendall
Type: Bug Report - General | Status: new
Priority: major | Milestone: 31.1
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------

Comment (by Gary Buhrmaster):

Replying to [comment:18 Mark Kendall]:
> If someone can test and confirm, I can backport that at least.

In my simple test case (run mythtv-setup on wayland) it does not seem to
help (one can still see the underlying screen content as shown
previously).

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:19>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: Mark Kendall
Type: Bug Report - General | Status: new
Priority: major | Milestone: 31.1
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------

Comment (by Klaas de Waal):

Tested just now with the latest master but there are no changes. Summary
of current behavior on Fedora 32/Wayland:

Just typing mythtv-setup results in the following messages

{{{
2020-07-27 22:38:51.639281 I Qt: Wayland does not support
QWindow::requestActivate()
2020-07-27 22:38:51.889890 I Qt: Wayland does not support
QWindow::requestActivate()

}}}
and then there is never a window.

When starting mythtv-setup like this

{{{
QT_WAYLAND_SHELL_INTEGRATION=wl-shell mythtv-setup

}}}
then the messages from "Qt: Wayland" do NOT appear and it works OK but
there are the transparent windows.

When starting mythtv-setup like this

{{{
mythtv-setup -platform xcb

}}}
then it works OK.

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:20>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: Mark Kendall
Type: Bug Report - General | Status: new
Priority: major | Milestone: 31.1
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------

Comment (by ggervasio):

(I think I got this from the forum.) This also works to make the GUI
visible for me (Fedora 32):

{{{
QT_WAYLAND_DISABLE_WINDOWDECORATION=1
}}}

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:21>
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#13483: Wayland in Fedora 31 does not allow focus grabbing from the compositer
----------------------------------+------------------------------
Reporter: hobbes1069 | Owner: Mark Kendall
Type: Bug Report - General | Status: new
Priority: major | Milestone: 31.1
Component: MythTV - General | Version: v30-fixes
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+------------------------------

Comment (by Stuart Auchterlonie):

Just ran a quick test with no extra environment variables or arguments.
First thing that pops up in the logs that I find curious is

{{{
"Display: Requesting EGL for 'Mesa Project, 1.4'"
}}}

I thought desktop versions under wayland were meant to use OpenGL
not OpenGLES ?

{{{
CoreContext opengl/mythrenderopengl.cpp:419:DebugFeatures OpenGL: OpenGL
vendor : VMware, Inc.
CoreContext opengl/mythrenderopengl.cpp:420:DebugFeatures OpenGL: OpenGL
renderer : llvmpipe (LLVM 10.0.0, 256 bits)
CoreContext opengl/mythrenderopengl.cpp:421:DebugFeatures OpenGL: OpenGL
version : 3.1 Mesa 20.1.4
CoreContext opengl/mythrenderopengl.cpp:422:DebugFeatures OpenGL: Qt
platform : wayland
CoreContext opengl/mythrenderopengl.cpp:425:DebugFeatures OpenGL: EGL
display : Yes
CoreContext opengl/mythrenderopengl.cpp:426:DebugFeatures OpenGL: EGL
images : Yes
CoreContext opengl/mythrenderopengl.cpp:428:DebugFeatures OpenGL: Qt
OpenGL format : OpenGL 3.1
CoreContext opengl/mythrenderopengl.cpp:429:DebugFeatures OpenGL: Qt
OpenGL surface : RGBA: 8888 Depth: 0 Stencil: 0
CoreContext opengl/mythrenderopengl.cpp:430:DebugFeatures OpenGL: Max
texture size : 8192
CoreContext opengl/mythrenderopengl.cpp:431:DebugFeatures OpenGL: Max
texture units : 192
CoreContext opengl/mythrenderopengl.cpp:432:DebugFeatures OpenGL: Shaders
: Yes
CoreContext opengl/mythrenderopengl.cpp:433:DebugFeatures OpenGL: NPOT
textures : Yes
CoreContext opengl/mythrenderopengl.cpp:434:DebugFeatures OpenGL:
Multitexturing : Yes
CoreContext opengl/mythrenderopengl.cpp:435:DebugFeatures OpenGL:
Rectangular textures : Yes
CoreContext opengl/mythrenderopengl.cpp:437:DebugFeatures OpenGL: Buffer
mapping : Yes
CoreContext opengl/mythrenderopengl.cpp:438:DebugFeatures OpenGL:
Framebuffer objects : Yes
CoreContext opengl/mythrenderopengl.cpp:439:DebugFeatures OpenGL: 16bit
framebuffers : Yes
CoreContext opengl/mythrenderopengl.cpp:440:DebugFeatures OpenGL: Unpack
Subimage : Yes
CoreContext opengl/mythrenderopengl.cpp:441:DebugFeatures OpenGL:
GL_RED/GL_R8 : Yes
}}}

--
Ticket URL: <https://code.mythtv.org/trac/ticket/13483#comment:22>
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