Closed Bug 1491568 Opened 6 years ago Closed 6 years ago

Enabling gfx.webrender.all.qualified breaks Window Capture in OBS

Categories

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

Product:
Core
Component:
Graphics: WebRender
Version:
64 Branch
Platform:
Desktop
Windows 10
Type:
defect

Tracking

()

Status:
RESOLVED INVALID
Tracking Flags:
Tracking Status
geckoview62 --- unaffected
firefox-esr60 --- unaffected
firefox62 --- disabled
firefox63 --- disabled
firefox64 --- affected

People

(Reporter: Dean.Laganiere, Unassigned)

References

Details

(Keywords: nightly-community, regression) 

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:64.0) Gecko/20100101 Firefox/64.0
Build ID: 20180915115425

Steps to reproduce:

Note: After Bug 1490742, gfx.webrender.all.qualified is enabled by default.

1. Install and Launch OBS Studio. (https://obsproject.com/)
2. Open Firefox.
3. On the preview window for OBS, Right-click and select Add > Window Capture.
4. Click OK.
5. Open the Window dropdown and select [firefox.exe] <Window title>.




Actual results:

The window capture in OBS displays as a white box.


Expected results:

The window capture in OBS displays the rendered content in Firefox.
Component: Untriaged → Graphics: WebRender
OS: Unspecified → Windows 10
Product: Firefox → Core
Thank you! :)

It's only a problem with ANGLE.
Blocks: stage-wr-trains
Status: UNCONFIRMED → NEW
status-firefox64: --- → affected
Ever confirmed: true
Keywords: nightly-community
Priority: -- → P1
Hardware: Unspecified → Desktop
mozregression --good 2018-01-15 --bad 2018-05-01 --pref gfx.webrender.all:true
> 5:29.24 INFO: Last good revision: edfd9ffbd7208ef0a59f40a0d77d8dd53c905cb9
> 5:29.24 INFO: First bad revision: d328d8eda8e68d669ebc77184c8d8d870cafcb7c
> 5:29.24 INFO: Pushlog:
> https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=edfd9ffbd7208ef0a59f40a0d77d8dd53c905cb9&tochange=d328d8eda8e68d669ebc77184c8d8d870cafcb7c

> d328d8eda8e6	sotaro — Bug 1191971 part 2 - Add capatiblity to enable DComp r=bas
> 19142efa84a5	sotaro — Bug 1191971 part 1 - Create child window in gpu process r=bas
Blocks: 1191971
Flags: needinfo?(sotaro.ikeda.g)
Keywords: regression
Does capture work with Edge or Chrome?
Flags: needinfo?(Dean.Laganiere)
Oh, legit. Sorry. It would be only a Firefox regression. It doesn't work with IE11, Edge and Chrome Dev 71.
Chrome users are advised to disable hardware acceleration. So this could be even a wontfix?
Even if you wanted to remove other graphics backends some day, it would be enough to temporarily disable gfx.webrender.dcomp-win.enabled for such a window capture.
Likewise, chrome.exe --disable-direct-composition is mentioned as a solution.
"Not a bug"
Status: NEW → RESOLVED
Closed: 6 years ago
Flags: needinfo?(sotaro.ikeda.g)
Flags: needinfo?(Dean.Laganiere)
Priority: P1 → P3
Resolution: --- → INVALID
You need to log in before you can comment on or make changes to this bug.