1500415 - [Wayland][WebRender] font/images/textures broken

Status: RESOLVED WORKSFORME

(Core :: Graphics: WebRender, defect, P3)

Description

[Robert Mader [:rmader]]

Attachment: Screenshot from 2018-10-19 14-17-37.png

User Agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0

Steps to reproduce:

Start the flatpak nightly in a gnome wayland session

fedora 29, gnome 3.30.1, thinkpad x230 (ivybridge)


Actual results:

Fonts and images in the main window/surface are broken. In menus (subsurfaces?) it works fine.


Expected results:

Fonts and images should get displayed correctly everywhere

Comment 1

[Martin Stránský [:stransky] (ni? me)]

I bet that's more flatpak than Wayland issue - I'll test that.

Comment 2

[Robert Mader [:rmader]]

Just wanted to add that I was able to reproduce this on a Thinkpad T440s, fedora 29

Comment 3

[bepvte+bugzilla]

I can reproduce outside of flatpak, on archlinux, dell xps 13. Le

Comment 4

[Val Packett]

Reproduced here too (FreeBSD/Weston/Radeon).

This definitely broke recently, used to work fine.

Comment 5

[Robert Mader [:rmader]]

I managed to work around/fix this by fixing bug 1474281
So it's likely a webrender bug when running on GLES

Comment 6

[Robert Mader [:rmader]]

Also filled a bug for webrender: https://github.com/servo/webrender/issues/3319

Comment 7

[Martin Stránský [:stransky] (ni? me)]

So is that WebRender only issue or can you reproduce it with acceleration disabled?

Comment 8

[Robert Mader [:rmader]]

This only happens when using WebRender.
As pointed out before, it does not happen when using desktop GL. I therefore suspect it to be a WebRender/GLES issue, but don't really now. I haven't tested it in the last two weeks, though, and will give you a fresh feedback tomorrow.

Comment 9

[Robert Mader [:rmader]]

Just compiled latest tip and while accelerated layers work fine, webrender only shows window decorations while the area in between stays transparent (no surface commited I guess). This also doesn't change with the patch from bug 1474281 (which also works fine for accelerated layers)

So currently webrender just fails for me (18.2.6, intel skylake)

Comment 10

[Martin Stránský [:stransky] (ni? me)]

(In reply to robert.mader from comment #9)
> Just compiled latest tip and while accelerated layers work fine, webrender
> only shows window decorations while the area in between stays transparent
> (no surface commited I guess). This also doesn't change with the patch from
> bug 1474281 (which also works fine for accelerated layers)
> 
> So currently webrender just fails for me (18.2.6, intel skylake)

Yes I see the same - I wonder what causes it. Plain OpenGL works with patch from Bug 1512589.

Comment 12

[Martin Stránský [:stransky] (ni? me)]

Not sure if it's related but I see on terminal:

Crash Annotation GraphicsCriticalError: |[0][GFX1-]: shader-cache: Shader disk cache is not supported (t=2.37896) [GFX1-]: shader-cache: Shader disk cache is not supported
ERROR 2018-12-10T14:50:04Z: webrender_bindings::program_cache: shader-cache: Shader disk cache is not supported

and compositor switches from WebRender to OpenGL.

Comment 13

[Darkspirit]

That's bug 1511726.

Comment 14

[Robert Mader [:rmader]]

Apart from bug 1514156, which currently breaks wayland+wr for in most cases, in the cases where ff does manage to start up, things are renderer fine again. Greg, can you confirm that?

Comment 15

[Robert Mader [:rmader]]

The bug as reported is now fixed, so closing.