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popups and menus are too large when using force-device-scale-factor on a hidpi system
Reported by
zcyzcy88...@gmail.com,
Nov 24 2016
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Issue description
UserAgent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:50.0) Gecko/20100101 Firefox/50.0
Steps to reproduce the problem:
1. Turn Windows to HiDPI(In my case, DPI=150%)
2. Launch chrome with command args:
`chrome.exe --force-device-scale-factor=2`
3. Watch popup&menu.
What is the expected behavior?
Popup&menu's proper zoom is according to the {--force-device-scale-factor} to display.
What went wrong?
Now popup&menu's zoom is 3,
is {Windows's DPI}(150%) multiplied by {--force-device-scale-factor}(2),
is not {--force-device-scale-factor}(2).
It is too big.
Another proof:
When I use {--force-device-scale-factor=1}, popup&menu's zoom is 1.5, not 1.
Did this work before? No
Chrome version: all Channel: n/a
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version:
In my case, I use Canary, but all versions are buggy.
,
Dec 13 2016
Tested the same on win10 chrome version 55.0.2883.87 and canary 57.0.2950.0 with the above steps and observed the popup as shown in the screenshot Confirming the issue to get more inputs on this
,
Dec 13 2016
force-device-scale-factor is a debug flag so I don't consider any fixes to it to be high priority. I suspect that they are too big because they are scaling to the font, which is also too large. I know that's a longstanding issue but I don't see another bug related to it.
,
Mar 18 2017
,
Mar 18 2017
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Comment 1 by ranjitkan@chromium.org
, Dec 8 2016