I am running Ubuntu 20.04 on an XPS15. And everytime I suspend and then come back from it, I get the following messages on the screen before the system actually starts:
ACPI Error: Thread 3824... cannot release Mutex [ECMX] acquired by thread 2383... (20200528/exmutex-378)
ACPI Error: Aborting method \_SB.PCI0.LPCB.ECDV._Q66 due to previous error (AE_AML_NOT_OWNER) 20200528/psparse-529)
i915 0000:00:02.0: [drm] **ERROR** failed to enable link training
I have installed Ubuntu 20.04.1 along with Windows 10 on XPS15 9500 and everything worked fine until Ubuntu asked me to do some updates. I clicked ok and after the updates finished I rebooted the system and landed on a black screen with a blinking cursor.
What works is: alt + ctrl + F4 so that I land on tty4, then I can click: alt + ← OR → which brings me from tty2 to tty6, if I click further I land either on tty1 or tty7 (where the login GUI is, which I have expected to be there by default).
So I would like to know how to land on the Login GUI by default without the black screen at the beginning?
The users exist when I check /etc/passwd, but are not shown here:
I remember on my old Macbook, when I closed the lid, I could open it one week later and it lost a few percentage points of energy over the week (about 10%).
When I do this with my xps13, the first problem is, that it doesn't really go to standby, when I close the lid, so I have to do the process manually.
Click the lock symbol:
Now the power LED is still on:
So I have to move the mouse again to end the black screen then press the pause button
As I took the picture I had 66% again, but it was at 55%, so I have lost 45% of energy in only ONE night in standby! So whats the trick here? Is there a feature to keep the energy in standby mode for 1-2 weeks or is this not possible with Ubuntu?
PS: I have also to mention that on Ubuntu I have closed ALL programs before activating the standby mode. On the Macbook I had about 10-20 programs open before just closing the lid and putting it to standby automatically.
From comments:
cat /sys/power/mem_sleep
results in
[s2idle] deep
When using the FileZilla client as an application directory (link), I can right-click an html file on a remote server → View/Edit and it will open in my predefined editor (e.g. VSCode).
BUT if I use the FileZilla flatpak version, then I get the following error:
The file 'index.html' cannot be opened: The associated program (/usr/bin/code) could not be found. Please check your filetype associations.
I can run /usr/bin/code from the command line, but it doesn't work with FileZilla.
After doing this:
sudo add-apt-repository ppa:alexlarsson/flatpak
sudo apt update
sudo apt install flatpak
I am getting this error:
E: Your kernels are unsigned. This system will fail to boot in a secure boot environment.
dpkg: error processing package grub-efi-amd64 (--configure):
installed grub-efi-amd64 package post-installation script subprocess returned error exit status 1
dpkg: dependency problems prevent configuration of grub-efi-amd64-signed:
grub-efi-amd64-signed depends on grub-efi-amd64 | grub-pc; however:
Package grub-efi-amd64 is not configured yet.
Package grub-pc is not installed.
dpkg: error processing package grub-efi-amd64-signed (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of shim-signed:
shim-signed depends on grub-efi-amd64-signed; however:
Package grub-efi-amd64-signed is not configured yet.
dpkg: error processing package shim-signed (--configure):
dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
No apport report written because the error message indicates its a followup error from a previous failure.
Errors were encountered while processing:
grub-efi-amd64
grub-efi-amd64-signed
shim-signed
E: Sub-process /usr/bin/dpkg returned an error code (1)
I think it is a known bug in Ubuntu 18.04 with unsigned kernels. Will flatpack work anyway?
Alt + Tab is the combination to switch between running programs. Also, if I hold alt after pressing tab once I can then use the arrow keys to go right or left and select the program I need.
But all of a sudden, without making any changes, when I click Alt + ← or → I get the prompt to log in to a new shell on tty3, tty4, tty5 etc.
Why did this happen and how can I change it to the old behavior?
I am running in my shell:
./hplip-3.18.7.run
Then it wants me to enter the root password, but does not accepting it!
Anybody know what this is?
If I run the script with sudo sudo ./hplip-3.18.7.run
, then it tells me at some step in the installation process: warning: hp-systray should not be run as root/superuser.
I am using Ubuntu 18.04:
NAME="Ubuntu"
VERSION="18.04.1 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.1 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic
This what the installer outputs at the beginning:
When I connect HP Laserjet Professional P 1102w to my XPS13 with Ubuntu 18.04, HP Device Manager recognizes the printer and tells me that the printer is idle (I have also installed the proprietary hp plugin).
Then I click Print Test Page and it tells me that it Started a print job and then Print job has completed, but my printer does NOT do anything!
Another thing that struck me is that ls /dev/usb outputs lp0, but as soon as I start to print a document it shows me ls: cannot access '/dev/usb': No such file or directory until I reconnect the printer device.
What could be wrong? The printer works just fine on my Mac as usual, what can I do to make it run on Ubuntu? I am struggeling for days with this problem now!
EDIT: I have already installed the needed proprietary binary plugin for my printer
Why does Gimp 2.10.4 show a second icon when running it?? One is brown and one is grey next to it. Is this a gui bug or a useful feature for whatever?
After moving the grey icon whithin the launcher/dock and then closing gimp and reopening it, there are even more of these icons :-D
I would like to create a Github issue for this, but it seems as there were so many issues for gimp that they closed the issues option on Github :-D
The file speck.ko can be found in /lib/modules/4.18.1-041801-generic/kernel/crypto and it was built by the NSA (added since Linux Kernel 4.17).
I really want to remove this thing from my computer. If I see it in the /crypto folder, does it mean it is enabled by default and used somehow?
I have recently updated from 16.04 to 18.04 and I wonder whether there will be new apt repositories for Ubuntu 18.04? Because the old apt repositories for xenial were deactivated whilst the update as taking place. So my questions are:
Thank you in advance!
I am on an XPS 13 1397 and have updated Ubuntu from 16.04 to 18.04.1. What is different, that the static application switcher appears only after about 1 sec after pressing Alt+Tab. I have already downloaded CompizConfig Settings Manager and configured the static application switcher as follows:
Behaviour --> Speed --> 50,000
Behaviour --> Timestep --> 10,000
Behaviour --> Popup Window Delay --> 0,000
But nothing changes.
I have installed flatpak to install gimp on Ubuntu 16.04:
flatpak install https://flathub.org/repo/appstream/org.gimp.GIMP.flatpakref
After the installation was done I couldn't find any application on my system, it also did not appear on my Desktop. Where to look for it?
UPDATE:
Searching for gimp did not give me the right result, anyway by searching for GNU Image Manipulation Program gave me the right result
When I open Ubuntu Software, it shows me that there are some updates which have to be done. But after clicking them for several times, the installation process just doesn't work. I also tried to restart.
If I use the Software Updater it tells me this message:
If I click OK, the update ends. If I click settings all options are checked:
This whole update process was really not user friendly developed. Do you know what can be done else? I also tried the terminal sudo apt update sudo apt upgrade, there are still undone updates in the Software Center and the Software Updater!
The output of the terminal is:
W: GPG error: http://download.opensuse.org/repositories/isv:/ownCloud:/desktop/Ubuntu_16.04 Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY
E: The repository 'http://download.opensuse.org/repositories/isv:/ownCloud:/desktop/Ubuntu_16.04 Release' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
PS: Who has marked this as duplicate? The so called duplicate is about why is Ubuntu Software showing these updates? Should I install them? My question is about how to install them? I can't install them because it doesnt work!
SOLUTION:
For me the terminal, the software-center etc failed, but Synaptic Package Manger worked! Even if it makes no sense at all, because all these apps do the same thing. I hope Ubuntu could explain this to me.
Firestarter was a package available through Debian that showed active connections (and a few other features which gufw does not have).
You could observe the log of attempts to connect and create rules to either block or allow similar connections by clicking on the log entries.
Is there a way to get this sort of functionality now that Firestarter is not in active development and no longer an available Debian package?
And are there ways to use firestarter with a VPN?
If I follow the steps of gnometerminator.blogspot.de:
sudo add-apt-repository ppa:gnome-terminator
sudo apt-get update
sudo apt-get install terminator
then I end up having terminator version 0.98, but according to the terminator launchpad site there is already version 1.91
Whats wrong here? Thank you in advance
I have just scanned my system and clamav has detected a few suspect files:
File: .cahe/mozilla/firefox/jqxk4r44.default/cache2/entries/750B6E2F1286....
Status: PUA.Win.Exploit.CVE_2012_1461-1
File: .cahe/mozilla/firefox/jqxk4r44.default/cache2/entries/F099C33HJ45J....
Status: PUA.Win.Exploit.CVE_2012_1461-1
File: .config/libreoffice/4/user/basic/Standard/Module1.xba
Status: PUA.Doc.Tool.LibreOfficeMacro-2
File: Downloads/nodejs/node-v8.9.4-linux-x64/lib/node_modules/imurmurhash/imurmurhash.min.js
Status: PUA.Win.Trojan.Xored-1
How likely is it that these files are real threats / trojans?
When I move the mouse to certain areas, the brightness changes. Bright areas make the screen even brighter and dark areas make it even darker. This is really annoying. Does anybody know a solution?
I am using Ubuntu 16.04 on an XPS13 9370. Hardware is Intel(R) UHD Graphics 620 and driver is i915_bpo.
Thank you in advance
I have added the unity-tweak-tools to the unity-control-center as follows:
sudo gedit usr/share/applications/unity-tweak-tools
then completed the line Categories=Settings; as follows and added another line:
Categories=GNOME;GTK;Settings;X-Unity-Settings-Panel;X-GNOME-PersonalSettings;
X-Unity-Settings-Panel=/usr/bin/unity-tweak-tools
It seems to work and the icon is getting shown up in the System Settings window, but after clicking it, nothing happens. Does anybody know the problem?
Thank you in advance