Bad rendering of linear gradient when zoomed out

NEW
Unassigned

Status

()

Core
Graphics
3 years ago
2 years ago

People

(Reporter: Daniel, Unassigned)

Tracking

43 Branch
Points:
---

Firefox Tracking Flags

(Not tracked)

Details

(Whiteboard: [gfx-noted])

Attachments

(3 attachments)

(Reporter)

Description

3 years ago
Created attachment 8657616 [details]
linear-gradient-zoom.html

User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0
Build ID: 20150905030205

Steps to reproduce:

View attached testcase and zoom out the page.

The background of the div is a linear gradient with a repeating 1px line.


Actual results:

The rendering of the linear gradient background is wrong. 

Interestingly the issue is visible on http://lea.verou.me/css3patterns/#blueprint-grid but not on http://lea.verou.me/css3patterns/#lined-paper .
(Reporter)

Comment 1

3 years ago
Created attachment 8657617 [details]
screenshot.png
(Reporter)

Comment 2

3 years ago
Created attachment 8657921 [details]
about-support-graphics.txt

I have a Intel/AMD switchable graphics setup, and I can only reproduce the issue using the Intel graphics. I attached the graphics section of about:support. It looks like all HW acceleration is turned off for this configuration.

With the other GPU, the behavior is the same as in Edge (the lines disappear).

Comment 3

3 years ago
Reproduced on latest nightly and devEdition. both of them renders correctly when the page is zoomed at 90%
Status: UNCONFIRMED → NEW
Component: Untriaged → Panning and Zooming
Ever confirmed: true
Product: Firefox → Core
"Panning and Zooming" refers to a different kind of zooming (pinch zoom on mobile); moving this to Graphics.
Component: Panning and Zooming → Graphics

Comment 5

3 years ago
I was thinking about graphics though. Thanks for re-correcting :)
Whiteboard: [gfx-noted]
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