428024 - Adding second monitor with xrandr changes zoom (content+toolbars)

Status: RESOLVED DUPLICATE of bug 394103

(Firefox :: General, defect)

Description

[Johannes 'fish' Ziemke]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; de; rv:1.9b2) Gecko/2007121016 Firefox/3.0b2
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; de; rv:1.9b2) Gecko/2007121016 Firefox/3.0b2

When i have my X running with only one monitor and change that layout with:

xrandr --output VGA --left-of LVDS --mode 1024x768

Everything in firefox gets resized

Reproducible: Always

Steps to Reproduce:
1. Start up with one monitor on
2. xrandr --output VGA --left-of LVDS --mode 1024x768
3. Open a new firefox window
Actual Results:  
Everything in firefox gets zoomed in

Expected Results:  
Don't know, maybe thats not a bug, its a feature ;). Makes sense for big resolutions but i guess in a normal multi-monitor layout thats not what people expect.

Keep everything as is if the virtual resolution changes

Comment 1

[Johannes 'fish' Ziemke]

Looks like that happens only when firefox is running while changing the resolution.

Comment 2

[Johannes 'fish' Ziemke]

Okay, here are the more precise steps to reproduce:
1. Start X with one monitor
2. Start firefox
3. xrandr --output VGA --left-of LVDS --mode 1024x768
3. Open a new firefox window (a new tab works fine)

Comment 3

[Johannes 'fish' Ziemke]

Attachment: My simple and plain xorg.conf

...the only thing special if the 'Virtual 2048 1200' part which is needed for multiple monitors with xrandr

Comment 4

[Johannes 'fish' Ziemke]

Attachment: The bug

Comment 5

[Sylvain Pasche]

This should be fixed on trunk now.

You can test it with a nightly (http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-trunk/) or wait for the first release candidate.