347646 - monospace font pref being 'monospace' makes monospace fonts non-monospace

Status: RESOLVED WORKSFORME

(Core :: Graphics, defect, P3)

Description

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

In at least some recent Linux desktop environments (such as Fedora Core 5), the default monospace font on the system is called "monospace" (which is really an alias to another font).  However, in cairo-enabled builds, choosing this as the default monospace font in font preferences leads to fonts that should be monospaced using the default non-monospaced font.

Steps to reproduce:
 * In Firefox, go to Edit -> Preferences -> Content -> Fonts & Colors -> Advanced... -> Monospace
 * set the monospace font to "monospace"
 * load this bug report

Actual results: bug comments and textarea are in proportional font

Expected results: bug comments and textarea in monospaced font

(I thought I filed this back when cairo was turned on, and I may have even sent vlad mail at the time about what the underlying cause was, but I can't find either.)

Comment 1

[Magnus Melin [:mkmelin]]

Is this bug also what is causing e.g. bugmail to look like crap in thunderbird trunk builds? (It seems a proportional font is used, I'm on ubuntu edgy.)

Comment 2

[Dão Gottwald [:dao]]

See bug 324706. All it's testcases fail for me on Windows. I too remember seeing non-monospace text all over the place where it should be monospace on Linux some days ago.

Comment 3

[Vladimir Vukicevic [:vlad] [:vladv] (needinfo me, slow to respond)]

I can't reproduce this under ubuntu feisty; I get monospace text.  But I think a lot of this depends on the exact set of fonts installed.

Comment 4

[Magnus Melin [:mkmelin]]

FWIW, I'm now on ubuntu feisty too and I don't get correct monospace text.

Comment 5

[Mike Connor [:mconnor]]

punting remaining a6 bugs to b1, all of these shipped in a5, so we're at least no worse off by doing so.

Comment 6

[Karl Tomlinson (:karlt)]

If you are able to reproduce this with the monospace font set to "monospace", are you able to attach a log from a run with FC_DEBUG=3 in the environment, viewing this bug (or a small problem page) and quiting, please?

Comment 7

[Magnus Melin [:mkmelin]]

After setting monospace font to "monospace" I don't have this problem anymore. It showed as being set to the first available font in the list - nothing I had changed myself though... The thunderbird problem went away with bug 386389.

Comment 8

[Karl Tomlinson (:karlt)]

(In reply to comment #7)
> It showed as being set to the first available font in the list - nothing I had
> changed myself though...

You may be interested in bug 379886.

Comment 9

[Karl Tomlinson (:karlt)]

(In reply to comment #6)
> If you are able to reproduce this with the monospace font set to "monospace",
> are you able to attach a log from a run with FC_DEBUG=3 in the environment,
> viewing this bug (or a small problem page) and quiting, please?

OK, FC_DEBUG=3 is probably going to produce too much output to attach here, especially if you have many fonts installed.  FC_DEBUG=1 should be good enough.

Comment 10

[Karl Tomlinson (:karlt)]

(In reply to comment #9)

Or even a simple "fc-match -v monospace" may be helpful.

Comment 11

[Stuart Parmenter]

dbaron? are you still seeing this?

Comment 12

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Works for me in 2007-10-24-04-trunk Linux nightly but it also works for me in 2006-08-09-04-trunk Linux nightly, which means that I've upgraded my system since filing this such that I no longer see it, not necessarily that the bug was (or wasn't) fixed.  So you should ask one of the other people who was seeing it.

Comment 13

[Stuart Parmenter]

so, i think this is gone and/or newer distros have fixed themselves.

please reopen if anyone can reproduce and explain whats going up (running the stuff karlt suggests above)