Removing fisheye distortion
by Patrick O'Callaghan
My USB camera, which is used only for online video chats, has quite
marked fisheye distortion. Although this could be regarded as a feature
in some contexts, for me it's just a distraction. Is there a way of
removing this in real time? I mostly use Zoom, but if possible I'd like
to tweak the video somewhere between the driver and the application, in
other words create a "virtual camera" that works the way I want,
perhaps analogous to how audio pipelines work in Linux.
Does anything come to mind that can handle this?
poc
2 years, 1 month
OSPower critical state
by Patrick Dupre
Hello,
When I login in, I get
OSPower critical state
What is that?
===========================================================================
Patrick DUPRÉ | | email: pdupre(a)gmx.com
Laboratoire interdisciplinaire Carnot de Bourgogne
9 Avenue Alain Savary, BP 47870, 21078 DIJON Cedex FRANCE
Tel: +33 (0)380395988 | | Room# D114A
===========================================================================
2 years, 1 month
Entitlement Server?
by Jonathan Ryshpan
At the latest upgrade the following strange message appeared. What is
it about? Do need to take any action?
$ sudo dnf upgrade
[sudo] password for jonrysh:
Updating Subscription Management repositories.
Unable to read consumer identity
This system is not registered with an entitlement server. You can use
subscription-manager to register.
--
Sincerely Jonathan Ryshpan <jonrysh(a)pacbell.net>
"He who receives an idea from me, receives instructions
himself without lessening mine; as he who lights his
taper at mine, receives light without darkening me."
-- Thomas Jefferson on Copyright
2 years, 1 month
/dev/sdb5 = /home => /devsda5 - at login can't chdir to /home/phr ->
left in "/" - but then "cd" works ?!
by Philip Rhoades
People,
I installed a new disk with F34 and made the old disk with F33 on it the
backup disk - but I continued to use partition /dev/sdb5 mounted on
/home while I sorted out stuff. When I finally rsynced everything from
/dev/sdb5 to /dev/sda5 and mounted that on /home I got this weird
problem - I have never seen it before:
When /dev/sdb5 is mounted on /home everything works as expected but when
I umount that drive and then mount /dev/sda5 on /home and try and login
as user "phr", I get an "unable to change to dir /home/phr" message and
end up at "/". However, if I just type "cd" and enter, I end up in
/home/phr and everything seems to be working! The dirs, files and
permissions on both partitions seem to be identical so I am stumped
about what is causing this login error . . any ideas?
Thanks,
Phil.
--
Philip Rhoades
PO Box 896
Cowra NSW 2794
Australia
E-mail: phil(a)pricom.com.au
2 years, 1 month
Migrating from Pipewire to Pulseaudio in Fedora 34
by Cisco Tissera
Hello everyone,
I was wondering if there was a way, or a step by step guide, to migrate
from Pipewire to Pulseaudio in Fedora 34.
I really like Pipewire, however the audio server does not yet support some
of the assistive technologies that I'd like to use, while pulseaudio does.
I can't go into much detail, because I just know less than half that I
should, LOL.
I'd appreciate any answer.
Best regards.
Francisco.
2 years, 1 month
mediawriter :: SSl handshake failed
by Adrian Sevcenco
i'm using mediawriter to write some images and i have a lot of messages like this:
W@31612ms: Error QNetworkReply::SslHandshakeFailedError reading from QUrl("https://getfedora.org/releases.json") : "SSL
handshake failed"
In the browser the link seems fine .. is there any problem with mediawriter?
Thanks!
Adrian
2 years, 1 month
Kernel Panic with Kernel 5.13.6-200
by Stephen Morris
Hi,
I am running F34 in a Vmware Player VM and have just done the first
boot after installing the update that installed Kernel 5.13.6-200, which
fails with a kernel panic saying it can't mount the root volume, but
Kernel 5.13.4-200 boots quite happily. Is this a known issue?
regards,
Steve
2 years, 1 month
module loading problem
by Paolo Galtieri
Folks,
I'm having an issue with loading kernel modules after a kernel
update. Specifically I'm having an issue with loading virtual box
kernel modules. After an update I sign the modules according to the
information listed here
https://docs.fedoraproject.org/en-US/fedora/f33/system-administrators-gui...
After signing the modules and verifying them via
modinfo <module> | grep "^sig"
I reboot the system. After booting the system I run lsmod to check if
the modules have been loaded and they have not. I go check the modules
again and I find they are no longer signed.
I resign the modules and rather than rebooting I run insmod to install
them and this works.
Now I also have vmware installed on the system and I follow the exact
same procedure to sign the vmware kernel modules and reboot the system
and when I do an lsmod after rebooting the vmware modules are loaded.
I even tried rebuilding both the virtual box and vmware modules from
source, resigned all the modules and rebooted and again only the vmware
modules are loaded. The virtual box modules no longer show they are signed.
Can anybody tell me why the virtual box modules are no longer signed
after rebooting?
Any help is appreciated.
Paolo
2 years, 1 month
libvirt virsh define {vm_dumpxml.xml} does not work
by Peter Boy
In the process to migrate from CentOS 8 to Fedora I saved the definition of various VMs using "virsh dumpxml vm_id > vm_id.xml“
According to the manual I can restore using "virsh define vm_id.xml“
But I get
Error: Can’t check QEMU program file /usr/libexec/qemu-kvm: file or directory not found
A "dnf provides '/usr/libexec/qemu-kvm*‘“ can’t find a package.
Do I miss something? Any idea?
Peter
2 years, 1 month
