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If a simple accidental click somewhere could cause this, that’s a loaded gun pointed at the user’s toe

29. syyskuuta 2022 klo 19.46
Sijainti: Vianhallintajärjestelmät: Launchpad
Avainsanat: Ubuntu

@Julian: I’d argue that if a simple accidental click somewhere can cause this, that’s a loaded gun pointed at the user’s toe, and hence a bug in the installer.

@Brian: I’ll try the 22.04 images. I’ve kept trying with 20.04.5, but have yet to find another instance of this occurring, so it’s obviously not easy to trigger.

I’m not particularly troubled by this issue (and the original reporter doesn’t seem to be either), so feel free to adjust ’Importance’ accordingly.

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Sure. There shouldn’t be anything confidential here

27. syyskuuta 2022 klo 18.35
Sijainti: Vianhallintajärjestelmät: Launchpad
Avainsanat: Ubuntu

installer.tar.xz Edit (396.6 KiB, application/x-tar)

@Olivier: Sure. This VM was just for testing purposes, so there shouldn’t be anything confidential here.

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Looks like the deb line for updates is missing entirely from sources.list in this install

26. syyskuuta 2022 klo 21.05
Sijainti: Vianhallintajärjestelmät: Launchpad
Avainsanat: Ubuntu

Screenshot from 2022-09-26 21-01-16.png Edit (159.6 KiB, image/png)

Looks like the deb line for updates is missing entirely from sources.list in this install; only the deb-src is there.

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@Steve I did not.

26. syyskuuta 2022 klo 20.57
Sijainti: Vianhallintajärjestelmät: Launchpad
Avainsanat: Ubuntu

@Steve I did not.

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It just shows both at 9.7, and 9.9 not yet available

26. syyskuuta 2022 klo 19.55
Sijainti: Vianhallintajärjestelmät: Launchpad
Avainsanat: Ubuntu

Screenshot from 2022-09-26 19-36-11.png Edit (149.8 KiB, image/png)

@Simon Here goes, although now it just shows both at 9.7, and 9.9 not yet available. Before I downgraded libc6 it obviously showed libc6 at 9.9.

I also tried to reproduce the issue in a fresh VM, but those kept getting 9.9 for all the packages, so installing build-essential caused no issues.

I don’t have in-depth knowledge about phased updates, but this looked like as if downloading the updates during installation was not yet affected by phased updates (and hence got libc 9.9), but, after the installation was completed, the system got cast into a ”still at 9.7” group of phased updates, and so libc6-dev (et al) could not be installed.

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libc6 version out of sync with the rest of the libc6* packages

24. syyskuuta 2022 klo 11.51
Sijainti: Vianhallintajärjestelmät: Launchpad
Avainsanat: Ubuntu

Just got hit by the same issue in a VM after a fresh install of 20.04.5. I chose ”Minimal installation”, ticked ”Download updates while installing”, and installed the remaining updates post-install.

After that the first thing I tried to do was to install build-essential, which failed, because the version of libc6 was out of sync with the rest of the libc6* packages: libc6 was already at 2.31-0ubuntu9.9, while e.g. libc6-dev was still only available as 2.31-0ubuntu9.7.

I tried switching from my local archive (fi.archive.ubuntu.com) to the main one (archive.ubuntu.com), but that made no difference. I had to downgrade libc6 to 2.31-0ubuntu9.7 to be able to install build-essential.

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-s (silent) is also undocumented

25. maaliskuuta 2022 klo 16.59
Sijainti: Vianhallintajärjestelmät: Launchpad

-s (silent) is also undocumented. There’s a confusing distinction between it and -q (quiet), where the latter isn’t quiet in the usual sense; -s is needed to silence non-error output entirely. There’s useless output even when called entirely without options:

    $ pngcrush 
    CPU time decode 0.000000, encode 0.000000, other 0.000000, total 0.000002 sec
    $ pngcrush -q
    CPU time decode 0.000000, encode 0.000000, other 0.000000, total 0.000002 sec
    $ pngcrush -s
    $

This is pngcrush 1.8.13-0.1 on focal.

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This also seems to be fixed in VLC 3.0.9.2-1

2. tammikuuta 2022 klo 20.09
Sijainti: Vianhallintajärjestelmät: Launchpad
Avainsanat: VLC

Seems to be fixed in VLC 3.0.9.2-1 (Ubuntu 20.04); at least I haven’t been able to reproduce it anymore.

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Reproducible here

2. tammikuuta 2022 klo 20.04
Sijainti: Vianhallintajärjestelmät: Launchpad
Avainsanat: VLC

Same ”double free or corruption (!prev)” reproducible here too (VLC 3.0.9.2-1, Ubuntu 20.04), even more easily: the position doesn’t matter, and the first attempt to screenshot is already enough to trigger the issue.

I came across this when trying to screenshot a Superman cartoon I downloaded from Internet Archive [1].

* [1] https://archive.org/download/dom-6746superman-episode7-theundergroundworld512kb/dom-6746superman-episode7-theundergroundworld512kb.mp4

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I tried Dash to Dock from extensions.gnome.org, and could not reproduce the issue with it

9. kesäkuuta 2021 klo 19.50
Sijainti: Vianhallintajärjestelmät: Launchpad
Avainsanat: Gnome

There’s no gnome-shell-extension-dashtodock package for focal [1], but I did try with Dash to Dock from extensions.gnome.org, and could not reproduce the issue with it. I tried with the default settings, as well as after recreating the look & feel of Ubuntu Dock as much as possible.

Dash to Dock has customizable action for the scroll (to either switch workspaces or windows, or to do nothing), and all of those also worked just as expected.

I also noticed that using the two finger scroll function of the touchpad on my laptop does *not* trigger this (whereas using the mouse on it does).

* [1] https://packages.ubuntu.com/search?keywords=gnome-shell-extension-dashtodock

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