654654 - Drop down boxes disappears on display #2

Status: UNCONFIRMED

(Firefox :: Menus, defect)

Description

[Terje Bergerud]

User-Agent:       Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0.1) Gecko/20100101 Firefox/4.0.1
Build Identifier: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0.1) Gecko/20100101 Firefox/4.0.1

My computer has 3 displays hooked up on 2 graphic cards. On one on the cards, there are 2 displays connected. When using Firefox on Display #2, the drop-down boxes does not operate normally. For example, in the URL address field, when typing an existing address, the drop-down list appears for a short while, and then disappears immediately after typing, only the frame for the drop-down box remains on the screen. You can navigate in the drop-down list with the up and down buttons on the keyboard, however, but the display is wrong.

The drop-downs in the menu is also having the same kind of trouble when it comes to display.

As I said, I have 3 displays, only display #2 acts this way, the others are OK.

Reproducible: Always

Steps to Reproduce:
1. Move firefox to display #2
2. Type an existing URL to activate the drop-down
3. The problem should be evident immediately

Comment 1

[Henrik Skupin [:whimboo][⌚️UTC+1]]

Can you please check about:support if the hardware acceleration for graphics is active? Does it work if you disable it? Also please check your graphics driver if you have the latest available driver version installed.