I understand from this article that on mac, chat apps like signal store your messages unencrypted in a notification queue.
I'm curious whether this is also true on Ubuntu 20.04 with GNOME. What's the name of the file that houses old desktop notifications like this on ubuntu, and how can it be accessed? Is it a sqlite db?
I opened chrome and realized that the keyboard does nothing. I can't type any URLs or do Ctrl+T to open new tabs. It's like the keyboard isn't there. The keyboard works fine in all other applications. I'm using Ubuntu 20.04.3 LTS. This is relatively new.
Chromium version is the latest available, apparently:
$ chromium --version
Chromium 96.0.4664.110 snap
$ sudo snap refresh chromium
snap "chromium" has no updates available
How do I make my keyboard works with Chromium?
I lost sound after updating from 19.10 to 20.04.
My sound driver appears to have been replaced with dummy output, see below
No other output devices are available. I have rebooted and the problem remains.
I'm following How to install the NVIDIA drivers on Ubuntu 19.10 Eoan Ermine Linux - LinuxConfig.org, and trying to install nvidia drivers on my machine, and somehow a WiFi driver seems to be in the way?
[last:s][20200315231820][user@local:~] $ ubuntu-drivers devices
== /sys/devices/pci0000:00/0000:00:14.3 ==
modalias : pci:v00008086d0000A370sv00008086sd00000030bc02sc80i00
vendor : Intel Corporation
model : Wireless-AC 9560 [Jefferson Peak]
manual_install: True
driver : backport-iwlwifi-dkms - distro free
Gross but fine. So delete it!
$ sudo apt purge backport-iwlwifi-dkms
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package 'backport-iwlwifi-dkms' is not installed, so not removed
0 upgraded, 0 newly installed, 0 to remove and 3 not upgraded.
What!? It just said it was installed! cf Intel Backport driver crashes the system completely
I don't understand:
Although my WiFi itself works fine, the driver does not seem to be correct according to this:
$ lspci -k | grep -EA3 'VGA|3D|Display'
01:00.0 VGA compatible controller: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile] (rev a1)
Subsystem: Lenovo GP107M [GeForce GTX 1050 Ti Mobile]
Kernel driver in use: nvidia
Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia
And
$ dkms status
bbswitch, 0.8, 5.3.0-40-generic, x86_64: installedError! Could not locate dkms.conf file.
File: /var/lib/dkms/evdi/5.2.14/source/dkms.conf does not exist.
bbswitch, 0.8, 5.3.0-42-generic, x86_64: installed
I recently upgraded from 19.04 to 19.10. Ever since, there has been an extra (large) cursor in the lower right of my screen. It is frozen and does not move. It returns on the lockscreen, sleep and restore, and also persists unmoved when I change workspaces or bring up the dash.
Interestingly, while here is a clear demonstration this cursor exists from an external (phone) picture:
When I use the screen shot utility, even with "include cursor" selected, I cannot capture the phantom cursor, just the true cursor.
How can I make this frozen phantom cursor disappear?
I understand 19.04 enables experimental fractional scaling from a couple of resources
And others for older Ubuntu versions:
However, when I enable the feature as presented, I get an error that the setting isn't saved:
~$ gsettings set org.gnome.mutter experimental-features "['x11-randr-fractional-scaling']"
GLib-GIO-Message: 12:22:36.852: Using the 'memory' GSettings backend. Your settings will not be saved or shared with other applications.
Part of the instructions require rebooting to even get the menu to come up in display. How can I enable the ability to enable this setting successfully?
On 18.10, it seems that
Alt+LeftArrowKey
flashes a black screen then asks me to log back in to my session, which resumes as it was.
I am not sure why this is something you would want to do. On my keyboard, this is so close to Ctrl+Alt+PageUp/Down and causes me to mistakenly have to log back into my session frequently. I would like to disable this keybinding.
In older Ubuntus, this setting was here. However, in the new Settings > Keyboard, I can't seem to identify what this is attempting to shortcut to to set it to null.
I purchased an X1 Carbon because it is supposed to be Ubuntu certified: https://certification.ubuntu.com/hardware/201712-26045/
50% of the time it fails to restore from hibernation. This makes it useless and I lose all my work. Please, please help. I can't even tell why it fails. It says it does s2disk before it hibernates, but just freezes on a back screen.
Is there some element of this that is transparently problematic?
+++ System Info
System = LENOVO ThinkPad X1 Carbon 6th 20KH002KUS
BIOS = N23ET59W (1.34 )
Release = Ubuntu 18.04.2 LTS
Kernel = 4.15.0-46-generic #49-Ubuntu SMP Wed Feb 6 09:33:07 UTC 2019 x86_64
/proc/cmdline = BOOT_IMAGE=/boot/vmlinuz-4.15.0-46-generic root=UUID=64f9d81d-0494-4f90-983e-5168b6420c6e ro resume=/dev/nvme0n1p4 no_console_suspend initcall_debug acpi.ec_no_wakeup=1 resume=/dev/nvme0n1p4 no_console_suspend initcall_debug acpi.ec_no_wakeup=1
Init system = systemd v237
Boot mode = UEFI
I'm running 18.04 and trying to have my system use hibernate instead of pm-hibernate when my laptop's lid closes.
I have a swap partition of 20GB on 16GB of RAM, so ample space.
When I use pm-hibernate, I get a small apci error that pops up very quickly when both hibernating and restoring that I cannot read. While the hibernate works in the sense it seems to dump to disk and restore from disk, it seems to be a sleep state in that it uses battery at a normal rate, rather than shutting down completely and ceasing battery use.
However, when I use the hibernate installed by:
sudo apt-get install hibernate
And run:
sudo hibernate
And restore from that, I notice my machine does in fact shutdown---the LEDs stop throbbing, etc---and battery usage goes to zero. This is the behavior I would like to see when my lid closes, not the sleep behavior that uses battery as if I were making active use of the computer.
I have followed these guides:
modified
/etc/systemd/logind.conf
to include:
#HandleLidSwitch=suspend
HandlelidSwitch=hibernate
And added my swap partition change in:
/etc/default/grub
To include the correct resume= link, and requested s2disk specifically with:
sudo cat /etc/pm/config.d/00sleep_module
SLEEP_MODULE="swsusp"
I have read the following related askubuntus:
I have also read these links on Lenovo and Arch forums:
How can I make sure the that the hibernate called by lid-close is hibernate not pm-hibernate?
This is still a problem and still makes the Carbon X1 6th gen fundamentally useless with ubuntu. Any solutions that could fix this and maybe additionally add a login prompt might be almost as good as a Windows machine from 4 years ago... ;)
I'm trying to record the output of my speakers, but when I do this, it also records from the microphone. I'd like to only record the non-microphone devices.
Trying:
$ (AUDIODEV=hw:0,0; rec test.mp3)
$ rec -d hw:0,0 test.mp3
I've also tried ffmpeg:
$ ffmpeg -f alsa -i hw:CARD=PCH,DEV=0 test.mp3
$ ffmpeg -f alsa -i front:CARD=PCH,DEV=0 test.mp3
$ ffmpeg -f alsa -i surround40:CARD=PCH,DEV=0 test.mp3
I've seen elaborate things such as:
$ parec -v -d analog-output-speaker | sox -t raw -e signed-integer b 16 -r 44100 -c 2 test.mp3
Proposed online, but this still records the mic, and comes with obsolete sox options.
How can I record only non-mic input in ubuntu 14.04+ ?
I'm getting an error writing in Xournal that looks like this:
That is, whenever my pen touches the screen, it draws a line from upper left off-screen to the point where I connect.
I remember having a problem when I first installed Ubuntu on a tablet years ago, in like 2007, when the solution was much fiddling in xorg.conf, which I don't believe is even used anymore. How can I fix this? I'm running Ubuntu 13.10 in a virtualbox on a surface pro 2.
UPDATE
Seems to be confined to virtualbox, actually? Trying to isolate the bug, I exported my virtual machine and loaded it in VMWare Player. There, I was able to use Xournal without this error. (However, there I have a bunch of new errors I don't want, so I'd prefer a solution still for Virtualbox.)
UPDATE 2
I installed Ubuntu 14.04 on a new machine and have the same problem. This does not seem to be limited to either Xournal or virtualbox. It occurs both virtualized and native. Is this just generally a bug in ubuntu's wacom drivers? Also, how would I be the lucky person to get this bug on 2 totally separate devices (on MS Surface Pro, one Lenovo X1) where no one else seems to get it at all?
UPDATE 3
Just got a notification I still had this up. Intervening updates still haven't fixed this. I basically just can't use the tablet function in Ubuntu.
Is there a better ubuntu keyboard app than Onboard, one that is a decent competitor to the features of Android or Microsoft virtual keyboards? Specifically, I'd expect:
Without these features, I really find a virtual keyboard a difficult replacement.
I found this great chart via the Florence Virtual Keyboard site:
Table 1. Keyboards features
+----------+--------------+-----------+------------+----------+-----------------+ | keyboard | transparency | auto hide | auto click | scanning | word completion | +----------+--------------+-----------+------------+----------+-----------------+ | Florence | Yes | Yes | Yes | No | No | | GOK | No | Yes | Yes | Yes | Yes | | XVKBD | No | No | Yes | No | Yes | | Onboard | No | No | Yes | No | No | +----------+--------------+-----------+------------+----------+-----------------+
However, the suggestions like Gok which appear to have a lot to offer, seem to be 404 links and are dead in the repos.
With all the windows 8 machines that have touch pads, there must be some very slick open source apps for this now, right? Quite frankly, I'd even buy a non-free one if it could mimic Android well. (And there are a ton in the google play store, so this might not be too hard?)
I'm getting some strange errors lately whenever trying to apt-get install anything. Here's an example from trying to install fluidsynth.
$ sudo apt-get install libfluidsynth1
Reading package lists... Done
Building dependency tree
Reading state information... Done
libfluidsynth1 is already the newest version.
libfluidsynth1 set to manually installed.
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue [Y/n]? y
Setting up postgresql-9.1 (9.1.10-0ubuntu12.04) ...
* Starting PostgreSQL 9.1 database server * The PostgreSQL server failed to start. Please check the log output:
2013-11-03 14:21:42 EST FATAL: could not access private key file "server.key": No such file or directory
[fail]
invoke-rc.d: initscript postgresql, action "start" failed.
dpkg: error processing postgresql-9.1 (--configure):
subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of postgresql:
postgresql depends on postgresql-9.1; however:
Package postgresql-9.1 is not configured yet.
dpkg: error processing postgresql (--configure):
dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
Errors were encountered while processing:
postgresql-9.1
postgresql
E: Sub-process /usr/bin/dpkg returned an error code (1)
I'm running 12.04. What's causing this and how do I address it? It happens for installing lots of things, and seems to suggest I need to initialize postgresql or something. I don't recall having fiddled with postgres, so I'm not sure why this suddenly became problematic.
I'm following this: http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-ubuntu
and I know a lot of boot-disk creation stuff will wipe my USB---it's 30GB which is more than I can comfortably back up to my HD right now, but I would like to install ubuntu on a friend's machine.
These instructions say: "If you’re not yet sure about installing Ubuntu, you can try it out without affecting your current system." So, that suggests there won't be any deleting, but I'm hesitant to push the "Make startup disk" button here:
]
...when there's a button so nearby called "Erase Disk" so close by---I would never want erasing my disk to be an option if it weren't necessary. Can someone confirm for me for sure whether this operation will delete my USB contents?
I have a Korg Nanokey, and I'd like to make it produce sound in ubuntu. I've read that means I should be using Rosegarden, and that Rosegarden uses JACK, but does not install it. (Although checking out Ubuntu Software Center, apparently some components of JACK are installed by default?)
I understand there can be a lot of work setting up JACK without it fighting the default sound server. Can someone give me a step-by-step method for what I need to do to plug in my midi machine and hear music when I press keys as simply as possible (without messing up pulseaudio, ie, so I can still access Skype and ordinary desktop stuff)? I'm fine installing JACK, but I'd like to sandbox it a little if it has the chance of messing up regular desktop.
I've looked through a couple resources, but I'm not sure what's outdated, but the following looked helpful...
I used a friend's Android (2.3) phone that allows USB tethering, subheading: "share phone's mobile network with PC."
Android lets me set 2 tethering settings, under "USB tethering type":
- Windows
- Mac OS X
Naturally, Linux isn't officially supported, but I suspect someone has run into this before. What do I need to on my Ubuntu 12.04 setup to get it to recognize either of these connection types for USB tethering?
I accidentally installed Canadian English instead of US English when I did my install. How can I set this back?
When I go to System Settings > Language Support English and English (Canada) are available, but English (United States), along with all other English variants, are greyed out.
"Install/Remove Languages" below does not have the granularity lower than English, so I can't select a country. How can I install US English?
I like that R updates frequently to give me the best new packages, but it does seem to pose a problem for my R scripts on cron schedules.
I noticed that every time ubuntu updater updates my r-base package, when I try to run my scripts, it'll say something like "there is no library(XML)".
Then I have to go "update.packages("XML")" to get the new version of that package that is compatible with my new version of R.
I have a lot of packages installed, so I find myself fairly regularly tracking them down and making long commands like "update.packages(c("XML", "ggplot2", "timeseries"))".
When I forget to do this after an update, all my R cron scripts fail.
Does anyone have a good workflow for automatically checking which packages I have already installed, and updating them when they need to be updated?
I usually take the upgrade path in ubuntu, rather than fresh install, but I'd like to try the latter route for 12.04.
However, one of the most thoroughly configured and critical tools on my system is the virtualbox windows virtual machine that I run for some key tasks I have not yet been able to move entirely to Linux.
How can I ensure that I completely back this up when I wipe and install for 12.04? Will it be in exactly the current state? Which files will I need to back up to guarantee all settings and content transfer correctly?
Also, a major part of my motivation in doing a fresh install is that I intend to go from a 32-bit 11.10 to a 64-bit 12.04 setup. Will this affect/break my virtual machine?
I have a google voice number so I can receive phone calls dialed to an actual phone number when I'm logged into gmail (via the gtalk widget sidebar).
I see I can use Empathy to make voice calls with other gtalk users.
Is it possible that I can receive phone calls when logged into Empathy, ie, that someone dial my google voice phone number, and it pops up as a call when I'm logged into empathy, the same way it does in the gtalk sidebar widget?
(Currently, I route my gtalk calls to skype, but it would be even better if this worked seamlessly within Empathy.)