Bug 329912 - No underscore w/ font "DejaVu Sans Mono 10pt"
Summary: No underscore w/ font "DejaVu Sans Mono 10pt"
Status: RESOLVED WORKSFORME
Alias: None
Product: kompare
Classification: Applications
Component: general (show other bugs)
Version: unspecified
Platform: Gentoo Packages Linux
: NOR normal
Target Milestone: ---
Assignee: Kompare developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-01-13 12:04 UTC by nocte107
Modified: 2022-11-23 05:16 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:


Attachments
A patch for testing (278 bytes, application/octet-stream)
2014-01-13 12:04 UTC, nocte107
Details
8pt screenshot (93.39 KB, image/png)
2014-01-13 12:07 UTC, nocte107
Details
10pt screenshot (99.12 KB, image/png)
2014-01-13 12:08 UTC, nocte107
Details
12pt screenshot (107.37 KB, image/png)
2014-01-13 12:10 UTC, nocte107
Details

Note You need to log in before you can comment on or make changes to this bug.
Description nocte107 2014-01-13 12:04:50 UTC
Created attachment 84615 [details]
A patch for testing

This happens under KDE 4.12.0. Kompare does not show any underscores in 10pt, or underscores in diff-ed lines in other font size.

$ eselect fontconfig list
Available fontconfig .conf files (* is enabled):                                                                                                                                                
  [1]   10-autohint.conf                                                                                                                                                                        
  [2]   10-no-sub-pixel.conf                                                                                                                                                                    
  [3]   10-scale-bitmap-fonts.conf *                                                                                                                                                            
  [4]   10-sub-pixel-bgr.conf                                                                                                                                                                   
  [5]   10-sub-pixel-rgb.conf *                                                                                                                                                                 
  [6]   10-sub-pixel-vbgr.conf                                                                                                                                                                  
  [7]   10-sub-pixel-vrgb.conf                                                                                                                                                                  
  [8]   10-unhinted.conf
  [9]   11-lcdfilter-default.conf *
  [10]  11-lcdfilter-legacy.conf
  [11]  11-lcdfilter-light.conf
  [12]  20-unhint-small-dejavu-sans.conf
  [13]  20-unhint-small-dejavu-sans-mono.conf
  [14]  20-unhint-small-dejavu-serif.conf
  [15]  20-unhint-small-vera.conf
  [16]  25-ttf-arphic-ukai-render.conf *
  [17]  25-ttf-arphic-uming-bitmaps.conf
  [18]  25-ttf-arphic-uming-render.conf *
  [19]  25-unhint-nonlatin.conf
  [20]  30-metric-aliases.conf *
  [21]  30-urw-aliases.conf *
  [22]  35-ttf-arphic-ukai-aliases.conf *
  [23]  35-ttf-arphic-uming-aliases.conf *
  [24]  40-nonlatin.conf *
  [25]  41-ttf-arphic-ukai.conf
  [26]  41-ttf-arphic-uming.conf
  [27]  45-latin.conf *
  [28]  49-sansserif.conf *
  [29]  50-user.conf *
  [30]  51-local.conf *
  [31]  57-dejavu-sans.conf *
  [32]  57-dejavu-sans-mono.conf *
  [33]  57-dejavu-serif.conf *
  [34]  59-google-droid-sans.conf *
  [35]  59-google-droid-sans-mono.conf *
  [36]  59-google-droid-serif.conf *
  [37]  60-latin.conf *
  [38]  60-liberation.conf
  [39]  64-ttf-arphic-uming.conf
  [40]  65-fonts-persian.conf *
  [41]  65-khmer.conf
  [42]  65-nonlatin.conf *
  [43]  69-unifont.conf *
  [44]  70-no-bitmaps.conf *
  [45]  70-yes-bitmaps.conf
  [46]  75-ttf-arphic-ukai-select.conf
  [47]  80-delicious.conf *
  [48]  90-synthetic.conf *
  [49]  90-ttf-arphic-ukai-embolden.conf *
  [50]  90-ttf-arphic-uming-embolden.conf *
  [51]  99pdftoopvp.conf

$ emerge --info
Portage 2.2.8 (hardened/linux/amd64, gcc-4.7.3, glibc-2.17, 3.12.6-hardened-r4 x86_64)
=================================================================
System uname: Linux-3.12.6-hardened-r4-N7EI-2013A1-x86_64-Intel-R-_Core-TM-_i5-2450M_CPU_@_2.50GHz-with-gentoo-2.2
KiB Mem:     3965532 total,     50944 free
KiB Swap:    2974148 total,   2943080 free
Timestamp of tree: Sun, 12 Jan 2014 08:15:01 +0000
ld GNU ld (GNU Binutils) 2.24
app-shells/bash:          4.2_p45-r1
dev-lang/python:          2.7.6, 3.3.3
dev-util/cmake:           2.8.12.1-r3
dev-util/pkgconfig:       0.28
sys-apps/baselayout:      2.2
sys-apps/openrc:          0.12.4
sys-apps/sandbox:         2.6-r1
sys-devel/autoconf:       2.13, 2.69
sys-devel/automake:       1.11.6, 1.12.6, 1.14.1
sys-devel/binutils:       2.24-r1
sys-devel/gcc:            4.7.3-r1
sys-devel/gcc-config:     1.8
sys-devel/libtool:        2.4.2
sys-devel/make:           4.0-r1
sys-kernel/linux-headers: 3.12 (virtual/os-headers)
sys-libs/glibc:           2.17
Repositories: gentoo local
ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="* -@EULA"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -march=native -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/themes/oxygen-gtk/gtk-2.0 /usr/share/themes/oxygen-gtk/gtk-3.0"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c"
CXXFLAGS="-O2 -march=native -pipe"
DISTDIR="/var/cache/dist"
EMERGE_DEFAULT_OPTS="--quiet --with-bdeps=y"
FCFLAGS="-O2 -march=native -pipe"
FEATURES="assume-digests binpkg-logs buildpkg config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FFLAGS="-O2 -march=native -pipe"
GENTOO_MIRRORS="ftp://lug.mtu.edu/gentoo ftp://ftp.ussg.iu.edu/pub/linux/gentoo"
INSTALL_MASK=" /lib64/systemd /usr/lib64/systemd /lib/systemd /usr/lib/systemd"
LANG="en_GB.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
PKGDIR="/var/lib/pkg"
PORTAGE_COMPRESS=""
PORTAGE_COMPRESS_FLAGS=""
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/var/repo/gentoo"
PORTDIR_OVERLAY="/var/repo/local"
SYNC="rsync://rsync.us.gentoo.org/gentoo-portage"
USE="3dnow 3dnowext X a52 aac acpi amd64 avahi avx bash-completion berkdb bluetooth branding bzip2 cairo cdda cdr cjk cli consolekit cracklib crypt cups cxx dbus declarative dri dts dvd dvdr emboss encode exif fam ffmpeg firefox flac fortran gdbm gif gpm hardened iconv icu inotify ipv6 jpeg jpeg2k justify kde kipi lcms ldap libnotify lzma mad mmx mmxext mng modules mp3 mp4 mpeg mudflap multilib mysql ncurses networkmanager nls nptl ogg opengl openmp pam pango pax_kernel pcre pdf phonon plasma png policykit ppds pulseaudio qt3support qt4 quota readline samba sdl semantic-desktop session skey spell sse sse2 sse4_1 ssl ssse3 startup-notification svg syslog taglib tcpd tiff truetype udev udisks unicode upower urandom usb v4l vaapi vdpau vorbis wxwidgets x264 xattr xcb xcomposite xinerama xml xscreensaver xv xvid zlib" ABI_X86="32 64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" DRACUT_MODULES="btrfs crypt crypt-gpg plymouth syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" GRUB_PLATFORMS="efi-64 pc" INPUT_DEVICES="evdev synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="zh_TW zh en_GB en af af_ZA ak am ar ar_SA ar_SY as as_IN ast az be be_BY bg bg_BG bn bn_BD bn_IN bo br brx bs ca ca_ES ca_XV ca@valencia crh cs cs_CZ csb cy da de de_DE de_FR dgo dz ee el el_GR en_AU en_CA en_US en_ZA eo es es_AR es_CL es_CO es_CR es_ES es_LA es_MX es_VE et et_EE eu eu_ES fa fa_IR fi fi_FI fil fo fr fr_CA fr_FR fy fy_NL ga ga_IE gd gl gu gu_IN he he_IL hi hi_IN hne hr hsb ht hu hu_HU hy hy_AM ia id id_ID is it it_IT ja ja_JP jv ka ka_GE kk km kn kn_IN ko ko_KR kok ks ku ky la lb lg lo lt lt_LT lv lv_LV mai me mk ml ml_IN mn mni mr mr_IN ms ms_MY mt my nan nb nb_NO nds ne nl nl_BE nl_NL nn nn_NO no nr ns nso oc om or or_IN pa pa_IN pap pl pl_PL ps pt pt_BR pt_PT rm ro ro_RO ru ru_RU rw sa_IN sat sco sd se sh sh_YU son si si_LK sk sk_SK sl sl_SI sq sr sr@ijekavian sr@ijekavianlatin sr@latin sr@Latn sr_BA sr_CS sr_RS sr_RS@cyrillic sr_RS@latin ss st sv sv_SE sw sw_TZ ta ta_IN ta_LK te te_IN tg tg_TJ th th_TH ti ti_ER tk tl tn tr ts tt ug uk uk_UA ur ur_IN ur_PK uz uz@cyrillic ve vi vi_VN wa xh yi zh_CN zh_HK zu" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python3_3" PYTHON_TARGETS="python2_7 python3_3" QEMU_SOFTMMU_TARGETS="i386 x86_64" RUBY_TARGETS="ruby19 ruby18" USERLAND="GNU" VIDEO_CARDS="fglrx intel" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset:  CPPFLAGS, CTARGET, LC_ALL, MAKEOPTS, PORTAGE_BUNZIP2_COMMAND, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON

Seems part of patched codes from Bug #234291 have been changed.
Comment 1 nocte107 2014-01-13 12:07:23 UTC
Created attachment 84616 [details]
8pt screenshot
Comment 2 nocte107 2014-01-13 12:08:01 UTC
Created attachment 84617 [details]
10pt screenshot
Comment 3 nocte107 2014-01-13 12:10:11 UTC
Created attachment 84618 [details]
12pt screenshot

All these screenshots are produced by setting the font size, closing the Kompare and reopening again.
Comment 4 David Korth 2016-01-06 05:14:43 UTC
I've been encountering this problem for quite some time on any program that uses the KDE text editor widget. (KWrite, Kate, KDevelop, etc.) When using DejaVu Sans Mono, 10pt, underscores don't render for normal text. They *do* render if the text is bold.

Version information:
- KWrite version 4.14.7
- Using KDE development platform 4.14.12

Interestingly, Qt Designer does NOT show this problem. Underscores render perfectly for DejaVu Sans Mono 10pt.
Comment 5 David Korth 2016-08-24 00:44:47 UTC
This was happening to me for quite a while on my old system, starting with at least KDE 4.12. On my new system, I installed KDE/Plasma 5 and the problem went away for a while.

...then I manually changed the font DPI from 96 to 100. Underscores no longer show up in KWrite with DejaVu Sans Mono 10pt.

System: KDE Frameworks 5.25 with Plasma Desktop 5.7.3
Underscores do not show up in KWrite or Kate when using the DejaVu Sans Mono 10pt font at 100dpi, but they do show up in Qt Designer (both 4 and 5).
Comment 6 David Korth 2016-08-24 21:36:51 UTC
After doing some more testing, I found that changing the anti-aliasing hinting style to anything other than "slight" fixes it.

I changed it to "full" on my local system, which makes the fonts appear "sharper" and fixes the underscore issue. I'm still thinking that something's wrong with KTextEditor, but this at least is a usable workaround.
Comment 7 Justin Zobel 2022-10-24 00:46:29 UTC
Thank you for reporting this bug in KDE software. As it has been a while since this issue was reported, can we please ask you to see if you can reproduce the issue with a recent software version?

If you can reproduce the issue, please change the status to "REPORTED" when replying. Thank you!
Comment 8 Bug Janitor Service 2022-11-08 05:09:53 UTC
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 9 Bug Janitor Service 2022-11-23 05:16:19 UTC
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!