156179 - setting low value for browser.display.screen_resolution can corrupt chrome

Status: NEW

(SeaMonkey :: UI Design, defect)

Description

[Richard Biddle]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.0.0) Gecko/20020615
Debian/1.0.0-3
BuildID:    1.0.0

If set user_pref("browser.display.screen_resolution", 25); in prefs.js, the
chrome is corrupted.
What does this value do?  It makes no noticable difference to me execpt for the
corruption with this value.

Reproducible: Always
Steps to Reproduce:
1.Set resolution to 25
2.
3.

Actual Results:  Corrupt chrome

Expected Results:  Good chrome

Comment 1

[Boris Zbarsky [:bzbarsky]]

Define "corrupt" please?  A screenshot would be nice.

What that value does is to define how physical units (mm, cm, in, pt, etc) are
mapped to pixels.

Comment 2

[Richard Biddle]

Attachment: Screenshot showing corrupt chrome

Comment 3

[Richard Biddle]

As you can see the, the right hand scrollbar and throbber is corrupted... but
can happen in other positions of chrome too, such as horizontal scrollbar, print
icon, and taskbar.
The image shown instead of the right hand scrollbar appears sometimes to be
dependent on the content of the webpage...  eg it sometimes reflects the colours
of the page content.

Comment 4

[Kai Lahmann (is there, where MNG is)]

can you still reproduce this with 1.1beta?

Comment 5

[Richard Biddle]

Yes, the bug still happens in 1.1Beta.
Has anyone been able to reproduce this on their linux systems?
I am just about to test on a nightly build... I'll let you know soon how that goes.

Comment 6

[Richard Biddle]

Still there in 2002082608 nightly

Comment 7

[Alexander Opitz]

Reporter can you reproduce this bug with a newer build (1.4 final)?
If not, then please close this bug as worksforme. Thanks.

Comment 8

[logan]

Confirmed in:
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040113

But I'm unsure why you'd want to use 25 for this, best to use the system
(default) value.

I use 96 otherwise fonts jiggle about (sometimes) on hover or selection.

Comment 9

[logan]

Closing as INVALID, don't set to 25 :)

Comment 10

[Boris Zbarsky [:bzbarsky]]

Uh-huh.  And if my actual display resolution _is_ 25?  Say it's a TV?

Don't mark bugs invalid unless they are, please.

Comment 11

[logan]

Heh ok, well is this a TV?

Sounds to me like the reporter was fiddling with settings to see what happens.

Comment 12

[Boris Zbarsky [:bzbarsky]]

The point is, we have a bug that can be reproduced when the resolution is low. 
Doesn't matter how it got there; the important part is that the bug exists.

Comment 13

[Richard Biddle]

Yes, I was actually setting it to this resolution for use on a TV.

Comment 14

[logan]

sorry, my bad :(

Comment 15

[Serge Gautherie (:sgautherie)]

Filter "spam" on "guifeatures-nobody-20080610".