On 8/10/25 18:59, Daniel van Vugt wrote:
> According to comment #7, the slowness to boot appears to be network
> timeouts. There's something wrong with the default network connection.
>
> Unrelated to that, you had a broken mix of Nvidia 570 and 575 drivers
> installed, so again please only install drivers using the 'Additional
> Drivers' app.
>
> As for having to kill snapd (or cupsd) on shutdown, that's a known
> issue. But it should resolve itself after 90 seconds.
>
> I'm glad you're running 25.04 instead of 22.04, but keep in mind that
> 25.04 only has a few months left before it is no longer supported. If
> you would like a long term stable release then we recommend 24.04 -
> https://wiki.ubuntu.com/Releases
>
>
> ** Changed in: ubuntu
> Status: Incomplete => Opinion
>
I am running 22.04. I only installed 25.04 on a spare SSD to test the
slow boot issue.
Installing NVIDIA-Linux-x86_64-570.181.run did fix the system response
issue under 22.04. That issue did not exist under 25.04. I only
installed the driver in desperation because the machine was not usable
otherwise.
Daniel, I think you did hit on a possible answer. Network timeouts.
I use only a wired connection to this machine (and, a few others). This
machine has WiFi, but, no antenna. I will look into turning off WiFi and
see if that fixes the slow boot problem. But, why did this only start a
few days ago?
When I boot 22.04, wlp71s0 gets assigned an IP. 25.04 says 'no carrier'.
I seem to remember 'use a wired connection' when I installed 25.04?
I turned WiFi off using the WiFi off button at the top right corner of
the screen. Reboot was slow. Is there some way to stop 22.04 from
looking for WiFi? 25.04 does not seem to.
The initial issue with this machine was after a maintenance session. I
did a apt update, upgrade and then a full backup.
After shutting down the machine, I cleaned and rearranged some cables in
prep for adding some hardware next month.
I rebooted but did not watch the process. Some time later, I started
working on this machine and after some time the screen went black.
No light blink and the fans were still running. I tried ssh and could
access the machine.
After a day, or so, I used 'ubuntu-drivers autoinstall' That got me to
the point of having video, but, jerky response.
VIDIA-Linux-x86_64-570.181.run got me back to a usable machine. It was
rebuild and reinstall otherwise.
I believe the 24.04 LTS iso exhibits the same no video problem. Display
the splash screen for a couple seconds then go black. I think I could
ping the machine. If I get time, I will try 24.04 LTS on the spare SSD
to see if it works.
The splash screen strangeness bothers me:
On boot, a splash screen is displayed for a couple seconds
Ubuntu 22.04
. . . .
Then the screen is black for a few seconds and another splash is
displayed
Ubuntu 22.04
Ubuntu 22.04 . . . .
Then, the slow boot process.
Thanks for helping.
Tom Dean
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https://bugs.launchpad.net/bugs/2120216
Title:
System boot very slow.
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