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Text glitches on iPhone 5 #17364

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cbracken opened this issue May 7, 2018 · 10 comments
Closed

Text glitches on iPhone 5 #17364

cbracken opened this issue May 7, 2018 · 10 comments
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a: typography Text rendering, possibly libtxt c: rendering UI glitches reported at the engine/skia rendering level dependency: skia Skia team may need to help us e: device-specific Only manifests on certain devices engine flutter/engine repository. See also e: labels. P2 Important issues not at the top of the work list platform-ios iOS applications specifically team-ios Owned by iOS platform team triaged-ios Triaged by iOS platform team

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@cbracken
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cbracken commented May 7, 2018 •
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When running the Gallery's animation demo on an iPhone 5, there's a fairly reproducible text glitchiness issue with similar symptoms to previous iOS text rendering issues. Verified this repros under both iOS 8 and iOS 9.

Similar previous issues for ref: #13817 #13087 #12934
Relevant Skia patches: https://skia-review.googlesource.com/c/skia/+/71780

Potentially relevant: this is combined with unusually poor performance, but only on the transition to and from the leftmost tab of the animation demo (Eyeglasses) to the second-from-leftmost tab (Seating).

image-1

/cc @brianosman @chinmaygarde
@cbracken cbracken added e: device-specific Only manifests on certain devices dependency: skia Skia team may need to help us labels May 7, 2018
@cbracken cbracken changed the title Text glitchiness on iPhone 5 Text glitches on iPhone 5 May 8, 2018
@eseidelGoogle eseidelGoogle added the platform-ios iOS applications specifically label May 8, 2018
@chinmaygarde
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@brianosman claims that the text bugs should be fixed on ToT. @cbracken: Can we verify and close this issue?

@cbracken
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cbracken commented Jun 4, 2018

Will check it out momentarily!

@cbracken cbracken self-assigned this Jun 12, 2018
@cbracken
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cbracken commented Jun 15, 2018 •
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@chinmaygarde @brianosman verified that this has not been fixed at head of flutter/flutter (Skia commit 1986036f69f81a52d390cc01899cd68d6b200e30).

@brianosman
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I know the bug says iPhone 5, but I previously saw this on an iPad. I haven't been able to reproduce it on that device in a long time. Do you know if this is device specific, now - or are there other specific steps to get it to reproduce?

@zoechi
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zoechi commented Dec 4, 2018

Does this still reproduce?

@zoechi zoechi added the engine flutter/engine repository. See also e: labels. label Dec 4, 2018
@ghost
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ghost commented Mar 5, 2019

Testing my apps on an iPhone 4S. Can easily reproduce that when playing with a SliverAppBar with FlexbileSpaceBar. After that, the font rendering is broken on different kind of pages.

@ovaldi
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ovaldi commented Jul 19, 2019

+1

@cbracken cbracken removed their assignment Oct 15, 2019
@cbracken cbracken mentioned this issue Dec 12, 2019
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@TahaTesser TahaTesser added passed first triage a: typography Text rendering, possibly libtxt c: rendering UI glitches reported at the engine/skia rendering level labels Oct 13, 2020
@kf6gpe
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kf6gpe commented Dec 4, 2020

Wondering if this is still an issue. Assigning P4.

@kf6gpe kf6gpe added the P2 Important issues not at the top of the work list label Dec 4, 2020
@flutter-triage-bot flutter-triage-bot bot added multiteam-retriage-candidate team-ios Owned by iOS platform team triaged-ios Triaged by iOS platform team labels Jul 7, 2023
@chinmaygarde
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Closing as stale. We haven't seen issues with multi-texturing in a while.

@chinmaygarde chinmaygarde closed this as not planned Won't fix, can't repro, duplicate, stale Sep 8, 2023
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This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.

@github-actions github-actions bot locked as resolved and limited conversation to collaborators Sep 22, 2023
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a: typography Text rendering, possibly libtxt c: rendering UI glitches reported at the engine/skia rendering level dependency: skia Skia team may need to help us e: device-specific Only manifests on certain devices engine flutter/engine repository. See also e: labels. P2 Important issues not at the top of the work list platform-ios iOS applications specifically team-ios Owned by iOS platform team triaged-ios Triaged by iOS platform team
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@chinmaygarde @cbracken @zoechi @Hixie @kf6gpe @ovaldi @eseidelGoogle @brianosman @TahaTesser