• Bug#1103038: tigervnc-standalone-server: Hardware acceleration does not

    From Leonard Lausen@21:1/5 to All on Mon Apr 14 07:20:01 2025
    Package: tigervnc-standalone-server
    Version: 1.14.1+dfsg-1
    Severity: important
    X-Debbugs-Cc: leonard@lausen.nl

    Dear Maintainer,

    as of TigerVNC 1.14, Xtigervnc now supports hardware acceleration. Unfortunately sessions started via tigervnc-standalone-server fail to
    use the hardware renderer, but fall back to llvmpipe software renderer.

    To reproduce, run for example `tigervncserver -xstartup xfce4-session`
    connect to the session and execute `glxinfo | grep "renderer string"` in
    a terminal. It prints "OpenGL renderer string: llvmpipe (LLVM 19.1.7,
    256 bits)".

    Running a Xfce4 session manually/without VNC on the same system in
    contrast returns "OpenGL renderer string: Mesa Intel(R) Iris(R) Xe
    Graphics (TGL GT2)".

    -- System Information:
    Debian Release: trixie/sid
    APT prefers testing
    APT policy: (500, 'testing')
    Architecture: amd64 (x86_64)

    Kernel: Linux 6.12.21-amd64 (SMP w/8 CPU threads; PREEMPT)
    Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.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 tigervnc-standalone-server depends on:
    ii libaudit1 1:4.0.2-2+b2
    ii libc6 2.41-6
    ii libfile-readbackwards-perl 1.06-2
    ii libgcrypt20 1.11.0-7
    ii libgl1 1.7.0-1+b2
    ii libgmp10 2:6.3.0+dfsg-3
    ii libgnutls30t64 3.8.9-2
    ii libhogweed6t64 3.10.1-1
    ii libjpeg62-turbo 1:2.1.5-3.1
    ii libnettle8t64 3.10.1-1
    ii libpam0g 1.7.0-3
    ii libpixman-1-0 0.44.0-3
    ii libselinux1 3.8.1-1
    ii libstdc++6 14.2.0-19
    ii libsystemd0 257.5-2
    ii libunwind8 1.8.1-0.1
    ii libxau6 1:1.0.11-1
    ii libxdmcp6 1:1.1.5-1
    ii libxfont2 1:2.0.6-1+b3
    ii perl 5.40.1-2
    ii tigervnc-common 1.14.1+dfsg-1
    ii x11-xkb-utils 7.7+9
    ii xauth 1:1.1.2-1.1
    ii xkb-data 2.42-1
    ii zlib1g 1:1.3.dfsg+really1.3.1-1+b1

    Versions of packages tigervnc-standalone-server recommends:
    ii libgl1-mesa-dri 25.0.3-1
    ii tigervnc-tools 1.14.1+dfsg-1
    ii x11-xserver-utils 7.7+11
    ii xfonts-base 1:1.0.5+nmu1

    Versions of packages tigervnc-standalone-server suggests:
    ii openssl 3.5.0-1
    ii xfonts-100dpi 1:1.0.5
    ii xfonts-75dpi 1:1.0.5
    ii xfonts-scalable 1:1.0.3-1.3

    -- no debconf information

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