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Issue 795254 link

Starred by 2 users

Issue metadata

Status: Fixed
Owner:
Closed: Apr 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Chrome
Pri: 2
Type: Bug

Blocked on:
issue 790723



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4k monitor display resolution mismatch with manage display UI and system tray window.

Reported by chromeis...@gmail.com, Dec 15 2017

Issue description

UserAgent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.94 Safari/537.36
Platform: Chrome 

Steps to reproduce the problem:
1.	Boot into chromium OS 
2.	Launch Manage Displays UI and set to extend mode (eDP+HDMI/DP)
3.	Select HDMI/DP monitor and change the resolution (Eg 720x400)
4.	Open system tray window, check Manage display setting and move the cursor to display settings.
5.	Resolution values popup notification appears.

What is the expected behavior?
Resolution values should match with both Manage display and system tray

What went wrong?
Resolution values does not match Manage display and system tray.
1) Tested with Samsung 4k monitor (U28D590)
2) Rest of the other monitors shows properly. 
3) Screen shots attached.
4) The following are configured resolutions on Manage displays setting and respective resolution shown under system tray window. 
(i.e Difference between Manage displays UI with System tray) values mentioned below:
1920x1080 - 3840x2160
3072x1728 - 3840x2160

Did this work before? N/A 

Chrome version: 62.0.3202.94  Channel: n/a
OS Version: 10.0
Flash Version: Chrome OS
 
Screenshot 2.png
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Screenshot 1.png
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 Issue 795253  has been merged into this issue.
Cc: osh...@chromium.org
Components: -UI UI>Shell>MultipleMonitor
Owner: malaykeshav@chromium.org
Status: Assigned (was: Unconfirmed)
Blocking: 790723
This is probably happening because the notification uses the ManagedDisplayMode dimensions without the effective UI scale and effective device scale factor applied.
This will be fixed with the introduction of Display Size feature.
Blockedon: 790723
Blocking: -790723
This was also discussed in  Issue 775757 with multiple monitors switching resolution reverts other monitor to default resolution
Status: Fixed (was: Assigned)

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