bugThe FreeType Project - Bugs: bug #23537, When hintstyle=hintslight,...


bug #23537: When hintstyle=hintslight, character is rendered incorrectly (tilde as macron)

Submitted by:  Simos Xenitellis <simos>
Submitted on:  Wed 11 Jun 2008 01:19:26 AM UTC  
Severity: 3 - NormalItem Group: Incorrect behaviour
Status: ConfirmedPrivacy: Public
Assigned to: NoneOpen/Closed: Open
Planned Release: None

Add a New Comment (Rich MarkupRich Markup):

You are not logged in

Please log in, so followups can be emailed to you.


Mon 03 Aug 2015 08:57:37 AM UTC, comment #2:

This bug also manifests in letters like ã/õ (a/o tilde) and occasionally even with the ~ character alone. DejaVu, Liberation, Droid (Sans and Mono) seem to show this around size 10.

Wed 11 Jun 2008 08:17:50 AM UTC, comment #1:

See also discussion at dejavu mailing list,

Simos Xenitellis <simos>
Wed 11 Jun 2008 01:19:26 AM UTC, original submission:

When the following precise conditions apply, a character is rendered incorrectly. A tilde (perispomeni) is shown as macron (flat line).

a. The font is DejaVu Sans Mono (tested with dejavu 2.23 from Ubuntu 8.04, any font version should apply). I also tried FreeSans Mono, and it exhibits the same issue at more font sizes.
b. The font size must be 12pt (96DPI). Other sizes are ok.
c. Hinting should be set to hintstyle=hintslight. Other hinting styles are ok.
d. The character that manifests the problem is U+1FB7, ᾷ

WHAT ACTUALLY HAPPENS: The perispomeni over this character (ᾷ) is shown as if it was a macron (flat horizontal line).

WHAT SHOULD HAPPEN: The perispomeni should appear properly (as it does in other sizes, similar to the tilde).

Simos Xenitellis <simos>


(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach File(s):

No files currently attached


Depends on the following items: None found

Items that depend on this one: None found


Carbon-Copy List
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by pmw
  • -unavailable- added by wl (Updated the item)
  • -unavailable- added by simos (Submitted the item)

    Do you think this task is very important?
    If so, you can click here to add your encouragement to it.
    This task has 0 encouragements so far.

    Only logged-in users can vote.


    Please enter the title of George Orwell's famous dystopian book (it's a date):



    Follow 24 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Tue 18 Aug 2009 11:02:03 AM UTCpmwCarbon-Copy-=>Added the tilde looked like a macron at 22
      Carbon-Copy-=>Added 21
      Carbon-Copy-=>Added 20
      Carbon-Copy-=>Added 19
      Carbon-Copy-=>Added 16
      Carbon-Copy-=>Added 15
      Carbon-Copy-=>Added 11 and 10 pt/em. without anitaliasing
      Carbon-Copy-=>Added and as expected
      Carbon-Copy-=>Added given the instructions
      Carbon-Copy-=>Added it is hard to read at any size below 15 or 16. but the autofitter still ends up with more of a macron at 10
      Carbon-Copy-=>Added 11
      Carbon-Copy-=>Added 15 and 16 pt/em. this may
      Carbon-Copy-=>Added then
      Carbon-Copy-=>Added be a freetype bug rather than a dejavu bug. this is with freetype from cvs as of june 05. i believe there were some more changes since then
      Carbon-Copy-=>Added perhaps also a release. -unavailable-
      Carbon-Copy-=>Added at ftview's default dpi
      Carbon-Copy-=>Added pt size ≡ pt/em.) with the bytecode interpreter and grayscale
      Carbon-Copy-=>Added i saw a clear tilde at all readable pt sizes. with forced autofitting
      Carbon-Copy-=>Added is shown incorrectly. it is shown as with a simos> macron (horizontal line) instead of something like a tilde. i just tried it in ftview. (aiui
    Tue 18 Aug 2009 11:02:02 AM UTCpmwCarbon-Copy-=>Added ᾷ
      Carbon-Copy-=>Added at size 12 and rendered with simos> dejavu sans mono
      Carbon-Copy-=>Added re: [dejavu-fonts] u+1fb7 in dejavu sans mono
      Carbon-Copy-=>Added at size 12 (greek small alpha with perispomeni+ypogegrammeni) from: james cloos - 2008-06-10 20:36 >>>>> "simos" == simos xenitellis writes: simos> i just noticed that u+1fb7
    Wed 11 Jun 2008 01:33:59 PM UTCwlStatusNone=>Confirmed

    Back to the top

    Powered by Savane 3.1-cleanup