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Bug 1948010 - [KDE/Plasma] Ship libglvnd-gles to enable Firefox Wayland backend on Fedora 34/KDE
Summary: [KDE/Plasma] Ship libglvnd-gles to enable Firefox Wayland backend on Fedora 3...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: comps
Version: 34
Hardware: x86_64
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Stephen Gallagher
QA Contact:
URL:
Whiteboard: AcceptedFreezeException
Depends On:
Blocks: F34FinalFreezeException
TreeView+ depends on / blocked
 
Reported: 2021-04-09 18:24 UTC by Emil Blennow
Modified: 2021-04-23 23:15 UTC (History)
15 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-04-23 23:15:25 UTC
Type: Bug
Embargoed:

Attachments (Terms of Use)

Description Emil Blennow 2021-04-09 18:24:00 UTC 
Description of problem:

Since Fedora 34 ships the KDE/Plasma spinn with as default and should use WebRender to get full performance. This will also enable hardware accelerated webgl.

Version-Release number of selected component (if applicable): 
Fedora-KDE-Live-x86_64-34_Beta-1.3
Firefox 86.

How reproducible:
When launching with MOZ_ENABLE_WAYLAND=1 Firefox will be incredibly slow. This is on a Intel iGPU.

Steps to Reproduce:
1. Start firefox with MOZ_ENABLE_WAYLAND=1 on LiveCD.

Actual results:
Firefox is unusably slow and shows error message: 
Failed to load EGL library: FEATURE_FAILURE_EGL_LOAD_3 and Failed GL context creation for WebRender.

Expected results:
A fast browsing experience.

Additional info:
Can be worked around by simply installing libglvnd-gles.
Comment 1 Martin Stransky 2021-04-10 08:05:28 UTC 
Note: This is already installed by default on Gnome/Workstation.
Comment 2 Ben Cotton 2021-04-12 20:56:41 UTC 
Setting component to comps, as that's where the change will need to land. 

In the meantime, I've opened an issue with the KDE SIG for them to decide if they want to make this change:
https://pagure.io/fedora-kde/SIG/issue/55
Comment 3 Neal Gompa 2021-04-19 11:57:55 UTC 
Firefox needs to recommend/require this package, because this is *Firefox's* need, and the rest of Plasma does not use it.
Comment 4 Neal Gompa 2021-04-19 12:04:13 UTC 
Here's a PR to do this: https://src.fedoraproject.org/rpms/firefox/pull-request/32
Comment 5 Neal Gompa 2021-04-19 20:04:57 UTC 
Switching back to comps, as I don't think we'll get the Firefox maintainer to accept the change at the package level (even though that's the correct place).
Comment 6 Neal Gompa 2021-04-19 20:08:43 UTC 
Comps PR: https://pagure.io/fedora-comps/pull-request/648
Comment 7 Fedora Blocker Bugs Application 2021-04-19 20:09:40 UTC 
Proposed as a Freeze Exception for 34-final by Fedora user ngompa using the blocker tracking app because:

 Without this fix, the Firefox WebRender backend does not work correctly due to missing GLES library.
Comment 8 Martin Stransky 2021-04-19 20:15:36 UTC 
Okay, let's see what installs libglvnd-gles on F33:

$ dnf repoquery  --whatrequires libglvnd-gles

efl-0:1.25.1-4.fc33.x86_64
egl-utils-0:8.4.0-8.20181118git1830dcb.fc33.x86_64
elementary-greeter-0:5.0.4-5.fc33.x86_64
gala-libs-0:3.3.2-5.git88e3294.fc33.x86_64
gnome-session-0:3.38.0-1.fc33.x86_64
gnome-shell-0:3.38.4-1.fc33.x86_64
libglvnd-devel-1:1.3.2-2.fc33.x86_64
mate-session-manager-0:1.24.2-2.fc33.x86_64
mesa-demos-0:8.4.0-8.20181118git1830dcb.fc33.x86_64
mir-common-libs-0:2.3.2-1.fc33.x86_64
mir-demos-0:2.3.2-1.fc33.x86_64
mir-server-libs-0:2.3.2-1.fc33.x86_64
mir-test-tools-0:2.3.2-1.fc33.x86_64
mutter-0:3.38.4-1.fc33.x86_64
mutter-tests-0:3.38.4-1.fc33.x86_64
phoc-0:0.4.2-1.fc33.x86_64
sway-0:1.5-3.fc33.x86_64
wayfire-0:0.5.0-1.fc33.x86_64
weston-demo-0:8.0.0-6.fc33.x86_64
weston-libs-0:8.0.0-6.fc33.x86_64
wlroots-0:0.11.0-2.fc33.x86_64
xorg-x11-drv-nvidia-390xx-libs-3:390.138-4.fc33.x86_64
xorg-x11-drv-nvidia-libs-3:465.24.02-2.fc33.x86_64

Looks like this package should be required by wayland compositors as wayland uses EGL. Maybe KWin should require it?
Comment 9 Neal Gompa 2021-04-19 20:34:21 UTC 
(In reply to Martin Stransky from comment #8)
> Okay, let's see what installs libglvnd-gles on F33:
> 
> $ dnf repoquery  --whatrequires libglvnd-gles
> 
> efl-0:1.25.1-4.fc33.x86_64
> egl-utils-0:8.4.0-8.20181118git1830dcb.fc33.x86_64
> elementary-greeter-0:5.0.4-5.fc33.x86_64
> gala-libs-0:3.3.2-5.git88e3294.fc33.x86_64
> gnome-session-0:3.38.0-1.fc33.x86_64
> gnome-shell-0:3.38.4-1.fc33.x86_64
> libglvnd-devel-1:1.3.2-2.fc33.x86_64
> mate-session-manager-0:1.24.2-2.fc33.x86_64
> mesa-demos-0:8.4.0-8.20181118git1830dcb.fc33.x86_64
> mir-common-libs-0:2.3.2-1.fc33.x86_64
> mir-demos-0:2.3.2-1.fc33.x86_64
> mir-server-libs-0:2.3.2-1.fc33.x86_64
> mir-test-tools-0:2.3.2-1.fc33.x86_64
> mutter-0:3.38.4-1.fc33.x86_64
> mutter-tests-0:3.38.4-1.fc33.x86_64
> phoc-0:0.4.2-1.fc33.x86_64
> sway-0:1.5-3.fc33.x86_64
> wayfire-0:0.5.0-1.fc33.x86_64
> weston-demo-0:8.0.0-6.fc33.x86_64
> weston-libs-0:8.0.0-6.fc33.x86_64
> wlroots-0:0.11.0-2.fc33.x86_64
> xorg-x11-drv-nvidia-390xx-libs-3:390.138-4.fc33.x86_64
> xorg-x11-drv-nvidia-libs-3:465.24.02-2.fc33.x86_64
> 
> Looks like this package should be required by wayland compositors as wayland
> uses EGL. Maybe KWin should require it?

EGL != GLES. 

EGL works with regular OpenGL just fine, and that's what KWin uses, because Qt5 is compiled that way.

I can say confidently about Mir that it can use either regular OpenGL or OpenGL ES, but I compiled it to support both. I would not be surprised if all wlroots-based compositors have a similar capability. I don't know much about Mutter, but I would guess it's in the same boat.
Comment 10 František Zatloukal 2021-04-19 20:49:06 UTC 
Marking as AcceptedFreezeException as per voting in: https://pagure.io/fedora-qa/blocker-review/issue/363
Comment 11 Stephen Gallagher 2021-04-19 20:56:37 UTC 
Merged and will be in the next compose.
Comment 12 Martin Stransky 2021-04-20 14:40:57 UTC 
(In reply to Neal Gompa from comment #9)
> EGL != GLES. 
> 
> EGL works with regular OpenGL just fine, and that's what KWin uses, because
> Qt5 is compiled that way.

I know that. What we see here it perhaps https://bugzilla.mozilla.org/show_bug.cgi?id=1689207. Right now firefox uses GLES as a fallback when EGL fails to initialize. But IMHO better to ship both EGL and GLES as Gnome does.
Comment 13 Adam Williamson 2021-04-23 23:15:25 UTC 
Well, the PR was merged, and the RC2 KDE live definitely has libglvnd-gles in it. Nothing else to see here.
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