Unable to set Zoom to get 1:1 with my display
Reported by
jer...@duckware.com,
Aug 3 2016
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Issue descriptionUserAgent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.82 Safari/537.36 Steps to reproduce the problem: 1. run Chrome on a Win7 system with OS scaling at 1.25 2. visit https://bjango.com/articles/min-device-pixel-ratio/ in Canary and try to get device pixel ratio set to "1.0" (must set zoom to 80%) What is the expected behavior? Should be able to adjust zoom to 80% to obtain a device pixel ratio of "1.0" What went wrong? In Chrome stable, my zoom is set to 125%, and I can just set zoom back to 100%, but now in Canary, zoom of 100% is really a zoom of 125% -- and then there is no 80% zoom level in Chrome -- to get back to "1.0". Chrome must add "1/device_scale" (no matter what device_scale is on that PC) into the list of available zoom values for the user. Did this work before? Yes Just prior to recent code changes in issue 485650 Chrome version: 54.0.2817.0 Channel: canary OS Version: 6.1 (Windows 7, Windows Server 2008 R2) Flash Version:
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Aug 4 2016
This issue was caused by https://codereview.chromium.org/2157243003 The quick fix for this issue is to add 1/device_scale into Chrome's zoom list. However, with a device zoom of 1.25, I can't use zoom to set a devicePixelRatio of 1.5 or 2.0 either. Set device scale to 1.25 and visit http://www.duckware.com/test/chrome/devicepixelratio.html to test this.
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Aug 5 2016
jerryj@Could you please confirm whether we can close this issue as it is fixed as per comment #3?
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Aug 5 2016
Where is 1/1.25 (80%) in the zoom list? What rev did Chrome add this zoom level into Chrome? Also, where are the X/1.25 zoom levels, where X is 2,3,4,5? So that I can get these pixel ratios? The preset zoom levels -- with a Windows system DPI of 125%, or device scale of 1.25 -- make very little sense. The zoom levels are not just hard coded up front constants, but rather vary depending upon the actual OS zoom level set, that Chrome (now) that considers 100%! You can ONLY mark this issue fixed after you set your Windows OS DPI to 125%, visit http://www.duckware.com/test/chrome/devicepixelratio.html with a stock Canary, and confirm the initial devicePixelRatio is 1.25, and then you can use page zoom to obtain devicePixelRatio of 1, 1.5, 2, 3, 4, 5.
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Aug 12 2016
Thank you for providing more feedback. Adding requester "ssamanoori@chromium.org" for another review and adding "Needs-Review" label for tracking. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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Aug 24 2016
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Aug 24 2016
what is the status of this issue?
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Aug 29 2016
Is there is a reason no one is looking into this? This used to work just fine and was busted by recent changes in chrome.
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Sep 29 2016
This used to work in Chrome. But now Chrome is busted. No one listening? No one cares? something else?
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Oct 2 2017
Issue has not been modified or commented on in the last 365 days, please re-open or file a new bug if this is still an issue. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot |
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