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[Bug 2111450] Re: [SRU] ppm and vu meter backgrounds not redrawn properly

 

This bug was fixed in the package meterbridge - 0.9.2-14ubuntu1

---------------
meterbridge (0.9.2-14ubuntu1) questing; urgency=medium

  * Fix for meter needle redrawing issue (LP: #2111450) (Closes:
#1050548)

 -- Erich Eickmeyer <eeickmeyer@xxxxxxxxxx>  Wed, 21 May 2025 10:21:20
-0700

** Changed in: meterbridge (Ubuntu Questing)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/2111450

Title:
  [SRU] ppm and vu meter backgrounds not redrawn properly

Status in meterbridge package in Ubuntu:
  Fix Released
Status in meterbridge source package in Noble:
  In Progress
Status in meterbridge source package in Oracular:
  In Progress
Status in meterbridge source package in Plucky:
  In Progress
Status in meterbridge source package in Questing:
  Fix Released
Status in meterbridge package in Debian:
  New

Bug description:
  [Impact]

  The meters in Meterbridge are not redrawn correctly. This is due to a
  change in libsdl. As such, users are seeing lines after the meter
  shows any activity which can, over time, appear illegible, affecting
  usability. See attached screenshot.

  [Test Case]

  As this is a JACK application, either:

  * Run Ubuntu Studio 25.04's live iso or any Ubuntu Studio 25.04
  installation

  -or-

  * Install ubuntustudio-pipewire-config to install required JACK
  configurations for pipewire to get it to properly use the pipewire-
  jack interface.

  * Install meterbridge and patchance

  * Run meterbridge

  * Run patchance

    * Attach a wire via dragging from the monitor of your default audio
  device to the input on meterbridge.

  * Have your system make a sound (volume control or youtube video) and
  watch the needle on the meterbridge window.

  EXPECTED: No ghost lines

  ACTUAL: Ghost lines appear where needle once was.

  [What could go wrong]

  It's possible this patch just plain doesn't work or further refinement
  is needed, and this patch might just cause meterbridge to not run.
  This has, however, been tested to work on Ubuntu Studio 25.04.

  [Other Information]

  Debian Bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1050548

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References