SVG path disappears in large window on 4K screen
Reported by
seahen...@gmail.com,
May 23 2018
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Issue descriptionUserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.181 Safari/537.36 Example URL: https://upload.wikimedia.org/wikipedia/commons/5/5b/Deviation_of_day_length_from_SI_day.svg Steps to reproduce the problem: 1. Visit the above URL on a computer with a 3840x2160 screen. 2. Maximize the window. 3. Restore and resize the window so that it's less than about 3000 pixels wide, to see the lines that previously disappeared. What is the expected behavior? The chart contains four data series: a thin, rapidly-oscillating gray line, a bumpy green line, a smooth and increasing red line, and a series of pink dots. What went wrong? All data series except the dots disappear when the window is wider than about 3000 pixels. Does it occur on multiple sites: No Is it a problem with a plugin? No Did this work before? N/A Does this work in other browsers? Yes Chrome version: 66.0.3359.181 Channel: stable OS Version: 10.0 Flash Version: Works fine in Firefox. A proper rendering to PNG is at https://upload.wikimedia.org/wikipedia/commons/thumb/5/5b/Deviation_of_day_length_from_SI_day.svg/3840px-Deviation_of_day_length_from_SI_day.svg.png.
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May 23 2018
It's not actually necessary to un-maximize the window: I got the paths to reappear by opening Developer Tools and widening the side panel. That was actually how I discovered that the window size affects this bug.
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May 23 2018
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May 23 2018
What happens if you disable GPU raster? I strongly suspect GPU path rendering. I don't repro at 3072x1594, but that might not be big enough.
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May 23 2018
Works fine with GPU acceleration turned off.
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May 23 2018
https://1drv.ms/u/s!AugOnzGPmzThvxRaVQ00AE01IyCs is without GPU.
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May 23 2018
https://1drv.ms/u/s!AugOnzGPmzThvxV5mkVCTctDpxm3 is with GPU, everything else the same.
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May 23 2018
Thank you for providing more feedback. Adding the requester to the cc list. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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May 23 2018
In case it helps, I'm using an Nvidia GTX 970 with driver 397.31.
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May 23 2018
Updated driver to 397.64; no change.
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May 25 2018
397.93 also repros.
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May 25 2018
seahen123@ Thanks for the issue. Tested this issue on Windows 10 - HP EliteBook x360 1030 G2 model on the reported version 66.0.3359.181 and the latest Canary 68.0.3439.0 and unable to reproduce the issue by following the below steps. 1. Set the resolution to 3840 x 2160 and navigated to the above URL on Chrome. 2. Can observe four data series on the chart and the same behavior is observed on Firefox as well. Attached is the screen cast for reference. Request you to check and confirm if anything is missed from our end in triaging the issue. Thanks..
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May 25 2018
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Jun 7 2018
Issue is not reproducible from our end as per Comment#12 and this looks to be related to GPU rasterisation as per Comment#5. Hence requesting GPU team for help in further debugging of this. Adding label "TE-NeedsTriageHelp". Thanks!
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Jun 7 2018
Per comment 5, it's definitely GPU rendering. I no longer have an environment to reproduce the issue, because my deaktop PC's power supply has died, I can't currently afford a replacement, and my old laptop's video outputs no longer work.
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Aug 10
cc'ing folks might know more about GPU raster issues.
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Aug 24
Can you investigate/triage this gpu path rasterization issue? |
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Comment 1 by seahen...@gmail.com
, May 23 2018