DevHeads.net

Postings by Paul Smith

OpenJDK 11 on Ubuntu 18.04... news?

Does anyone have anywhere I can look to understand the status of
actual, real Java 11 availability on Ubuntu 18.04 and not the
masqueraded Java 10-as-11 that currently exists?

My understanding was the "trick" Java 11 in 18.04 was put there so that
a "real" Java 11 could replace it once it was released. Well, it was
released 4 months ago but still we have Java 10.

trackpad issues in Ubuntu 18.04? (NOT new click behavior)

I upgraded my Macbook Pro II from Ubuntu 17.10 to 18.04 (not reload
from scratch). This is a native install of Ubuntu (dual boot with
MacOS). Ubuntu 17.10 had no issues at all. For 18.04 things seem
mostly fine except for one fairly infuriating problem: my trackpad now
"freezes" while I'm dragging it.

If I move the cursor around (dragging with one finger) at some point
(sometimes almost immediately, sometimes after a few seconds) it will
freeze in place and won't move anymore, until I pick up my finger and
put it back down again.

Wherefore art thou, 17.10 ISO respins?

Anyone know how to be sure to get the latest 17.10 ISO respins with the
SPI driver fix to avoid laptop bricking?

According to
<a href="https://lists.ubuntu.com/archives/ubuntu-release/2018-January/004263.html" title="https://lists.ubuntu.com/archives/ubuntu-release/2018-January/004263.html">https://lists.ubuntu.com/archives/ubuntu-release/2018-January/004263.html</a>
they were supposed to be released on Thursday (11 Jan); according to
<a href="https://lists.ubuntu.com/archives/ubuntu-release/2018-January/004267.html" title="https://lists.ubuntu.com/archives/ubuntu-release/2018-January/004267.html">https://lists.ubuntu.com/archives/ubuntu-release/2018-January/004267.html</a>
they were actually released yesterday evening (Friday 12 Jan), but
according to <a href="https://www.ubuntu.com/download/desktop" title="https://www.ubuntu.com/download/desktop">https://www.ubuntu.com/download/desktop</a> they're still not
available, and if I try to follow any of the links at the alternative
download page (e.g.

Ubuntu 16.04: screen unlock fails if my phone is plugged in?

I've been having this weird problem where _sometimes_ when I try to
unlock my screen I enter my password and hit ENTER and it just hangs
forever.  Other times it works fine.

16.04: issues with wireless on MacBook Pro

[[Hopefully this doesn't appear twice: I sent it over 28 hours ago but
it hasn't shown up yet... maybe a victim of network outage described
below?]]

Hi all.  I have a MacBook Pro 9,2 and I've used reFind and installed
Ubuntu GNOME 16.04 (dual boot) on it.

For the most part everything works great, but there is one major issue:
the wireless.  As you may know this hardware uses a Broadcom wireless
card: mine is Broadcom Corporation BCM4331 802.11a/b/g/n (rev 02) FWIW.

My wireless actually works fine... for a short while.

Any success with 16.04 netboot?

Has anyone had any success using the official 16.04 netboot images to
PXE boot and install?

I have a PXE server I've used to netboot install various images
including Ubuntu 12.04, 14.04, CentOS, etc.

Whenever I try to install Ubuntu 16.04 using netboot/PXE, it downloads
and boots the images fine and I can go through the basic setup (I
choose to not do any preseeding) such as connecting to the network,
choosing a locale/language, etc.

But then I get this message:

15.04: Firefox crashing all the time?

Is anyone else seeing this on Ubuntu 15.04 (Ubuntu GNOME technically)
with Firefox 38.0 (deb 38.0+build3-0ubuntu0.15.04.1)?

I mean, it happens to me about once or twice a day: Firefox just
disappears and I get the "should we report the crash" error dialog. I
haven't see this happen in years. It doesn't happen on my system at
work, that I've noticed, running the same Ubuntu.

I have very few extensions: adblock plus, flashblock, lastpass.

I keep waiting for some Firefox update to appear that will fix the
problem, but so far no joy...

Help with Samba in Ubuntu 15.04!

So, I decided to ditch Mint and come back to Ubuntu GNOME 15.04. It's
got a number of features I like and with the addition of just two
extensions (Frippery panel favorites and system-monitor) I have a very
nice desktop.

But, I share out some directories on my local harddrive to my family for
storage, etc. using Samba and I just can't figure out how to make this
work anymore on this version of Ubuntu.

Does anyone have any up-to-date documentation on this? I found
<a href="https://help.ubuntu.com/community/Samba/SambaServerGuide" title="https://help.ubuntu.com/community/Samba/SambaServerGuide">https://help.ubuntu.com/community/Samba/SambaServerGuide</a> but it seems
outdated.

Ubuntu GNOME 14.10 flaky since Friday's updates!

I installed Ubuntu GNOME 14.10 on my system at work back in November or
so and it's been working great for me up until Friday.

On Friday I installed a bunch of packages that were available for update
during last week, and my desktop suddenly got very flaky.

What happens is that the desktop hangs frequently: every few minutes it
stops responding for about 20 seconds, then it starts working again
(most of the time).

When it's not responding the mouse will move, but can't be used to
select anything (no buttons appear to work, and the cursor doesn't
change shape when moved over elements of the

Firefox and chrome chewing CPU since updates

So, I was away all week on vacation (during that time my system was
halted and unplugged) and when I got back I had 56 or so updates waiting
for me (Ubuntu 12.04 64bit) including a kernel update and various other
things.

I applied these and rebooted. Now whenever I start a browser, either
the default Firefox or Chrome (I use the main/stable version from the
dl.google.com repository), it sucks up TONS of CPU.

Firefox is usually chewing at least 60% CPU and sometimes jumps to 120%
or more (I have an Intel Core2 Quad). top(1) says my system load is
constantly at 1.3 or above.

12.04: How to add local details to dnsmasq config

Hi all. So, the new integrated dnsmasq / DNS service for Ubuntu 12.04
is nice. However it only works with NetworkManager enabled software
solutions.

I have a 3rd party VPN tool which is most decidedly NOT integrated with
Network Manager, and I need to add appropriate extra setup to the
dnsmasq configuration to handle the DNS forwarding for that environment.
I used to manage all this myself by hand so I'm quite aware of what
needs to be done and how it all works.

However, I don't know how to add extra content to the dnsmasq
configuration network-manager uses.

Launcher problems... bugs or am I just too stupid to get it?

I'm having a hard time working with the Launcher.

For example I have a proprietary application I use at work for source
code control. It has a Linux GUI client (written in Java with a shell
script wrapper to launch it) but it doesn't come with any desktop
integration at all, so I've written my own very simple .desktop file for
it that I've been using the Gnome Panel for years.

So now I've upgraded to Ubuntu 12.04 64bit and added the .desktop file
and I see the icon in the Dash. I click it and the application starts,
but sometimes no icon at all is added to the Launcher.

Problems with setuid app in Ubuntu 12.04

Hi all. I've recently installed Ubuntu 12.04 64bit.

I'm using a proprietary VPN utility from Juniper Networks on my Linux
system. In previous versions of Ubuntu, it worked just fine. In the
current version of Ubuntu, I'm getting failures. For some reason it's
not letting me invoke a setuid application.

The way it is deployed is it unpacks into a hidden directory under
$HOME, then the main VPN program needs to be made setuid root so that it
can be invoked by me but do root-y things.

Configuring postfix to not reject sender address verification requests

Hi all. I've read a lot about how to get postfix to implement sender
address verification (S.A.V.), but I have the opposite problem: an MTA
(running postfix) that is sending me mail has broken S.A.V., and my
local MTA is configured to drop all email that does not verify properly.
So, I'm basically getting no mail from this remote server, with no
warning that I'm missing anything.

The remote MTA is sending mail from a bugtracker account and so they've
configured their postfix to drop all incoming email to that address...
but this breaks S.A.V.