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  • Bug#1109472: xterm: display issue: dots in the bottom line

    From Vincent Lefevre@21:1/5 to All on Fri Jul 18 16:40:01 2025
    XPost: linux.debian.maint.x

    Package: xterm
    Version: 401-1
    Severity: minor

    I've noticed a small display issue with xterm 401: dots in
    the bottom line. See attached screenshot. There are 1 dot
    below the q and other 2 dots on the right.

    I have no idea how these dots appeared.

    Moving to another desktop (making the xterm window disappear)
    and back (so that the xterm window had to be redisplayed) made
    these dots disappeared.

    -- System Information:
    Debian Release: 13.0
    APT prefers unstable-debug
    APT policy: (500, 'unstable-debug'), (500, 'testing-security'), (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable-debug'), (500, 'proposed-updates-debug'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
    Architecture: amd64 (x86_64)

    Kernel: Linux 6.12.38+deb13-amd64 (SMP w/16 CPU threads; PREEMPT)
    Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
    Shell: /bin/sh linked to /usr/bin/dash
    Init: systemd (via /run/systemd/system)
    LSM: AppArmor: enabled

    Versions of packages xterm depends on:
    ii libc6 2.41-10
    ii libfontconfig1 2.15.0-2.3
    ii libfreetype6 2.13.3+dfsg-1
    ii libice6 2:1.1.1-1
    ii libtinfo6 6.5+20250216-2
    ii libutempter0 1.2.1-4
    ii libx11-6 2:1.8.12-1
    ii libxaw7 2:1.0.16-1
    ii libxext6 2:1.3.4-1+b3
    ii libxft2 2.3.6-1+b4
    ii libxinerama1 2:1.1.4-3+b4
    ii libxmu6 2:1.1.3-3+b4
    ii libxpm4 1:3.5.17-1+b3
    ii libxt6t64 1:1.2.1-1.2+b2
    ii xbitmaps 1.1.1-2.2

    Versions of packages xterm recommends:
    ii luit [luit] 2.0.20240910-1
    ii x11-utils 7.7+7

    Versions of packages xterm suggests:
    pn xfonts-cyrillic <none>

    -- no debconf information

    --
    Vincent Lef�vre <[email protected]> - Web: <https://www.vinc17.net/>
    100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
    Work: CR INRIA - computer arithmetic / Pascaline project (LIP, ENS-Lyon)

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  • From Vincent Lefevre@21:1/5 to Vincent Lefevre on Fri Jul 18 16:50:01 2025
    XPost: linux.debian.maint.x

    Control: retitle -1 xterm: display issue: dots in the bottom line due to box drawings vertical line

    On 2025-07-18 16:36:34 +0200, Vincent Lefevre wrote:
    I have no idea how these dots appeared.

    I could eventually reproduce the issue. This is due to the characters
    like

    U+2502 BOX DRAWINGS LIGHT VERTICAL
    U+251C BOX DRAWINGS LIGHT VERTICAL AND RIGHT

    when put in the bottom text line.

    --
    Vincent Lef�vre <[email protected]> - Web: <https://www.vinc17.net/>
    100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
    Work: CR INRIA - computer arithmetic / Pascaline project (LIP, ENS-Lyon)

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  • From Vincent Lefevre@21:1/5 to All on Fri Jul 18 17:30:01 2025
    XPost: linux.debian.maint.x

    Control: found -1 379-1

    This already occurs with an xterm on a bookworm machine
    (current stable).

    --
    Vincent Lef�vre <[email protected]> - Web: <https://www.vinc17.net/>
    100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
    Work: CR INRIA - computer arithmetic / Pascaline project (LIP, ENS-Lyon)

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  • From Oliver M. Schode@21:1/5 to All on Sat Jul 26 14:20:01 2025
    XPost: linux.debian.maint.x

    Package: xterm
    Version: 398-1
    Followup-For: Bug #1109472

    I would just like to confirm this glitch but can't really provide more
    info. It does indeed seem to be font related, I'm nearly always using
    Noto Mono with xterm, size is likely irrelevant. It almost certainly
    predates Bookworm by a long shot, in fact I cannot remember when it
    started, possibly as long as I'm using this configuration. The
    characters so far identified, if they are, cannot be the only culprits,
    at least I'm unaware of ever using them. My xterms are usually full
    screen, it's possible the issue doesn't occur in smaller windows but
    that's not a given.

    It's harmless, very infrequent, and probabaly only affects the specific terminal/font combination, we're just documenting it.

    Regards,
    Oliver

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  • From Thomas Dickey@21:1/5 to Vincent Lefevre on Sat Jul 26 21:10:01 2025
    XPost: linux.debian.maint.x

    On Fri, Jul 18, 2025 at 05:27:28PM +0200, Vincent Lefevre wrote:
    Control: found -1 379-1

    This already occurs with an xterm on a bookworm machine
    (current stable).

    fwiw, the feature dates from #331 (perhaps I overlooked clipping).

    --
    Thomas E. Dickey <[email protected]>
    https://invisible-island.net

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