Intermittent UI glitch causing the Print preview "pages" dropdown to be overlapped
Categories
(Core :: Graphics: WebRender, defect)
Tracking
()
People
(Reporter: noni, Unassigned)
References
(Blocks 1 open bug)
Details
Attachments
(1 file)
|
(deleted),
image/jpeg
|
Details |
pages_dropdown_overlap
Affected versions
- 82.0a1 (BuildId:20200825094622)
- 81.0b2 (BuildId:20200825191644)
Affected platforms
- Ubuntu 20.04 64bit
Steps to reproduce
- Launch Firefox.
- Open any webpage.
- Hit CTRL + P.
- Open the pages dropdown.
Expected result
- The dropdown is correctly displayed.
Actual result
- Intermittently, the dropdown is overlapped by the preview section.
Regression Window
- Pushlog: https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=80e6be24260d34c7638715107e676806817d0a43&tochange=89bbbe5e6369e1ce2b75ddf75cd201782ce362b2
- Potential regressor: Bug 1653389
Additional Information
- I'd set this S4 since it's a glitch that reproduces highly intermittent (maybe 5 tries out out 100).
- I was unable to reproduce this on Windows 10x64 and macOS 10.15.
- No console error are present.
|
Reporter | |
Updated•4 years ago
|
|
||
Updated•4 years ago
|
|
||
Updated•4 years ago
|
|
|
||
Updated•4 years ago
|
|
||
Updated•4 years ago
|
|
|
||
Updated•4 years ago
|
|
|
||
Comment 1•4 years ago
|
||
Hi Cornel,
we've made a bunch of changes in that code recently. Is this still reproducable on Nightly?
|
||
Comment 3•4 years ago
|
||
This video from the duped bug looks like it might be helpful here https://drive.google.com/file/d/1s8CzdYaB1vR7B1ab8dZgs0ezRWGwWxgP/view.
|
||
Updated•4 years ago
|
|
|
Reporter | |
Comment 4•4 years ago
|
||
I'm still able to reproduce this with 2020-09-10 Nightly (buildID 20200910152110).
Removing the regressionwindow-wanted flag since it was provided in the description.
|
|
||
Comment 5•4 years ago
|
||
Moving to 83.
|
||
Updated•4 years ago
|
|
||
Comment 6•4 years ago
|
||
Cornel, can you check if you have WebRender enabled? If so does toggling it change anything?
|
|
Reporter | |
Comment 7•4 years ago
|
||
It seems this issue is related to the WebRender indeed. It does not reproduce after force disabling the WebRender.
|
||
Updated•4 years ago
|
|
|
||
Updated•4 years ago
|
|
|
||
Comment 8•4 years ago
|
||
Cool, I'll take it out of the print2020 list, then. :)
|
||
Comment 9•4 years ago
|
||
Gnome Xwayland, Debian Testing, Intel HD Graphics 630 (KBL GT2)
The dropdown is a WebRender window.
mozregression --launch 20200825094622 --pref gfx.webrender.all:true gfx.webrender.debug.new-frame-indicator:true -a https://example.com
Also noticed: The drowndown is entirely frozen for a second until the highlight background is removed from the dropdown button, you can't hover (highlight) the other entry in this period.
Description
•