[Webkit-unassigned] [Bug 220892] New: Safari 14.0 shows graphics artifacts when scrolling, using drop-down menus or just moving the mouse

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=220892

            Bug ID: 220892
           Summary: Safari 14.0 shows graphics artifacts when scrolling,
                    using drop-down menus or just moving the mouse
           Product: WebKit
           Version: Safari 14
          Hardware: Mac (Intel)
                OS: macOS 10.15
            Status: NEW
          Severity: Blocker
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: chrisbeaham at mac.com
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

Created attachment 418225

  --> https://bugs.webkit.org/attachment.cgi?id=418225&action=review

Screen shots and videos displaying the described behavior

Hello Everyone

For your information, the following is an aggregated copy of the information that I have entered into the CUBA Platform forum beginning October 2, 2020 at the following address describing a Safari 14.x rendering problem. I was not aware of this WebKit site before, so I am entering my information here for the first time.

https://www.cuba-platform.com/discuss/t/macos-catalina-10-15-7-safari-14-0-graphics-problems/13767

Date: Oct. 2nd 2020
Operating System: macOS Catalina 10.15.7 (19H2)
Browser: Safari 14.0 (15610.1.28.1.9, 15610)
Hardware: iMac (Retina 5K, 27-inch, 2020)
Graphics: AMD Radeon Pro 5700 8 GB
File System: Case-Sensitive Journaled HFS+ (APFS)
Datebase: MySQL 8.0.19
CUBA Platform version: 7.2.8 (7.2.7 was also affected)
CUBA Studio plugin version: 14.0-193
IntelliJ version: CUBA Studio 2019.3
VAADIN version: 8.9.2-3-cuba (https://vaadin.com)

Use Case: Normal local standalone development.

Problem: For your information, after recently upgrading my new iMac (bought in August 2020) to macOS Catalina 10.15.7 (19H2), my CUBA application experiences massive graphics problems, primarily with the VAADIN table components. They continually disappear and reappear, often only half drawn, without any user interaction. And while scrolling, my display is covered with various artifacts; please see the attached images.

Note, that I have run my application on my laptop with the previous macOS version 10.15.6 (19G2021) and Safari 13.1.2 (15609.3.5.1.3) with Intel Iris Pro 1536 MB graphics without any problems.

Date: Nov. 20th 2020

I just upgraded my laptop, that previously did not show this problem behavior, and now I see the same problems as originally reported with my new iMac and Safari 14.0. Here are the system details…

Operating System: macOS Big Sur 11.0.1
Browser: Safari 14.0.1 (16610.2.11.51.8)
Hardware: MacBook Pro (Retina, 15-inch, Mid 2015)
Graphics: Intel Iris Pro 1536 MB
File System: Case-Sensitive Journaled HFS+ (APFS)
Datebase: MySQL 8.0.19
CUBA Platform version: 7.2.10
CUBA Studio plugin version: 14.0-193
IntelliJ version: CUBA Studio 2019.3
VAADIN version: 8.9.2-3-cuba (https://vaadin.com)

Note, that if I keep my session open and stop my application and server in CUBA Studio, scrolling around in my open (but disconnected) session, still shows this problem behavior. I therefore assume that it is a rendering problem within Safari 14.x.x.

Date: Jan. 5th 2021

I just upgraded my iMac today to match my laptop and the behavior is the same. Here are the newest system details…

Operating System: macOS Big Sur 11.0.1
Browser: Safari Version 14.0.2 (16610.3.7.1.9)
Hardware: iMac (Retina 5K, 27-inch, 2020)
Graphics: AMD Radeon Pro 5700 8 GB
File System: Case-Sensitive Journaled HFS+ (APFS)
Datebase: MySQL 8.0.19
CUBA Platform version: 7.2.11
CUBA Studio plugin version: 114.3-193
IntelliJ version: CUBA Studio 2019.3
VAADIN version: 8.9.2-3-cuba (https://vaadin.com)

As noted before, if I keep my session open and stop my application server in CUBA Studio, scrolling around in my open (but disconnected) session, still shows this problem behavior. And it is reproducible with all of the provided themes including helium.

Date: Jan. 23rd 2021

I have recorded two new screen videos displaying this behavior.

I hope that this information can be helpful and that this can be fixed soon. Thanks in advance for your efforts.

Best regards
Chris

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