1269329 - Main window display breaks when moving between HiDPI and LowDIP Display

Status: RESOLVED DUPLICATE of bug 1266354

(Thunderbird :: Untriaged, defect)

Description

[Lennart Jütte]

Attachment: 03_hover_over_ui.png

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.86 Safari/537.36

Steps to reproduce:

Reproducible with: latest Thunderbird 45 Nightly (BuildID: 20160501030200)
Reproducible on: Mac OS X 10.11.4, with a MacBook Pro Retina 15-inch, Mid 2014, and one or two secondary monitors connected via DisplayPort. 

Steps to reproduce:
1. Start Thunderbird on any monitor (A = lowDPI)
2. Move Thunderbird window to another Monitor (B = hiDPI/Retina)
3. Hover over UI-Elements (B - see 03_hover_over_ui.png)
4. Resize the Thunderbird window on monitor (B)
5. Move Thunderbird window back monitor (A)
6. Resize the Thunderbird window monitor (A)


Actual results: moving the window causes content to zoom in/out, causing buttons to disappear and rendering the window almost unusable.



Actual results:

Moving the window between the monitors breaks the UI and makes it look weird. The UI is not usable anymore, until the window is being resized.


Expected results:

Moving the window between monitors should not affect its UI.

Comment 1

[Lennart Jütte]

Attachment: 01_start_on_lowdpi.png

Comment 2

[Lennart Jütte]

Attachment: 02_move_to_highDPI.png

Comment 3

[Lennart Jütte]

Attachment: 04_resize_highDPI.png

Comment 4

[Lennart Jütte]

Attachment: 05_move_to_lowDPI.png

Comment 5

[Lennart Jütte]

Attachment: 06_resize_on_low_DPI.png

Comment 6

[Lennart Jütte]

Attachment: thunderbird_UI problems_480p.mov

Attached short screen recording of one of the screens (Retina/hiDPI) showing the broken main window.

Comment 7

[Wayne Mery (:wsmwk)]

thanks for reporting.
this is being tracked in bug 1266354

Comment 8

[Lennart Jütte]

Didn't saw that one when i was searching for similar issues. Sorry for the dup.