Hello,
I have been using urxvt with the font DejaVuSansMono:pixelsize=14 for
some years, under Scientific Linux 5 and 6 (equivalent to RHEL 5 and 6
or Centos 5 and 6). I have recently installed Scientific Linux 7 and
rxvt-unicode.x86_64 0:9.20-2.el7 from the EPEL repository. In this
environment, the underscore character does not display in urxvt,
although it always did before. The underscore does display in other
fonts, e.g., lucidatypewriter, and I suspect that the difference may be
related to the fact that the underscore is actually below the bottom of
the alphanumeric characters in DejaVuSansMono, and not in the other
fonts. (On the other hand, the descender of the character y does
descend in DejaVuSansMono and it displays.)
I think the problem may not be in urxvt as such, but in an interaction
between urxvt and something in the SL7 environment. I have tried an
experiment compiling urxvt from source under SL6 and running the same
binary in both SL6 and SL7. In SL6, the binary displays the underscores
and in SL7 it does not. I don't know what all the changes are between
the two distributions that could affect urxvt.
Underscores do display with DejaVuSansMono in UXTerm under SL7.
Stephen Isard
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