One webcam, two /dev/video
by François Patte
Bonjour,
On my desktop, when I plug an usb webcam, two /dev/video (0 and 1) are
created. Only one displays video though.
Why?
Thank you.
--
François Patte
UFR de mathématiques et informatique
Laboratoire CNRS MAP5, UMR 8145
Université Paris Descartes
45, rue des Saints Pères
F-75270 Paris Cedex 06
Tél. +33 (0)6 7892 5822
http://www.math-info.univ-paris5.fr/~patte
5 years, 7 months
Plymouth graphical glitches when PSR is enabled
by zfnoctis＠gmail.com
Just a heads up that setting i915.enable_psr=1 causes my Dell Latitude 7490 (Intel UHD 620) to display graphical corruption *only* in Plymouth while entering in my drive's password. I understand that PSR is currently not supported on Fedora, however it looks like the Intel developers are planning to have it enabled by default next kernel release[1] for Skylake and newer.
I have to say, PSR seems to be otherwise fully baked, once I'm past LUKS there are no graphical issues at all. I can reproduce this on drm-intel-next and mainline, but I'm not sure at this point if it's a problem with Plymouth or i915.
[1] https://lists.freedesktop.org/archives/intel-gfx/2018-September/175255.html
5 years, 7 months
Videos on Fox news don't work
by ToddAndMargo
Hi All,
Fedora 28, x64
Xfce 4.12
Firefox 61.0.2
I have a customer I just installed Fedora Core 28 on.
He can not watch Foxnews.com videos, but can watch
videos everywhere else.
And my machine, also FC28 and Xfve 4.12, Foxnews.com
works perfectly. I can't figure out what is different.
How to troubleshoot his?
Many thanks,
-T
5 years, 7 months
glibc scriptlet error?
by Tom Horsley
Seems like I've been getting this for a long time now on
every glibc update:
Running scriptlet: glibc-2.27-30.fc28.x86_64 412/417
/var/tmp/rpm-tmp.8JLoGA: line 5: /sbin/sln: No such file or directory
Anyone know what an sln is and why glibc expects to find it?
5 years, 7 months
Fedora 28 "crash"
by Bob Goodwin
.
Thursday evening we had a power failure and I shutdown all the computers
to get the load off my UPS's. I have booted the Fedora 28 computer this
morning and a what was a non-problem has blossomed into a real one. The
other three all booted normally when I started things after the power
came back on, however I did not try the F28 until this morning.
Since the F28 install a window has always come after the xfce desktop opens:
"Oops, We're sorry, it looks like boot_image-/
vmlinuz-4.17.18.200.fc28.x86_64 crashed. Please contact the developer ..."
I ignored it until now since it seemed to be meaningless, the system
connected to the LAN and the internet and went happily on its way. Not
so today, the cursor arrow sits in the error message box and can't be
moved and the Only thing that works is ctrl-alt-F1 which brings back the
user boot screen asking for a password, normally bobg, but I tried
alternate as well as root, which brings up Gnome, also frozen in some
strange fashion, I never use that so did not investigate much there, a
presentation hard for me t read. Along with the Oops window is another
that ells me I am connected to enp2so or whatever.
Tried the two alternative kernels, no difference.
I can ssh from this computer which allows me to reboot it conveniently
[bobg@Box10 ~]$ ssh -X bobg(a)192.168.1.83
bobg(a)192.168.1.83's password:
Warning: No xauth data; using fake authentication data for X11 forwarding.
Last login: Sat Sep 15 13:51:55 2018
[bobg@box83 ~]$ su
Password:
[root@box83 bobg]# reboot
I tried "startxfce4" via ssh from this computer after a fresh start, the
xfce splash screen comes up but that crashes with a lot of errors and
I'm not even certain that approach should work.
So I am stuck and need some help troubleshooting.
Bob
--
Bob Goodwin - Zuni, Virginia, USA
http://www.qrz.com/db/W2BOD
box10 FEDORA-27/64bit LINUX XFCE Fastmail POP3
5 years, 7 months
HP & Ghostscript - possible problems
by Max Pyziur
Greetings,
Until recently, printing with our HP 3015 was a cinch: all jobs were
accepted.
Then in the last week (I think?) certain jobs (images in particular) have
been rejected or failed.
Using the command:
su -c 'journalctl -u cups.service' > troubleshoot-logs.txt
And then reading through the output, the consistent message that comes up
is:
Sep 14 10:55:44 pegasus cupsd[9287]: cupsdSetBusyState: newbusy="Printing
jobs and dirty files", busy="Printing jobs and dirty files"
Sep 14 10:55:44 pegasus cupsd[9287]: [Job 1260]
./base/gsicc_manage.c:1244: gsicc_open_search(): Could not find
default_rgb.icc
Sep 14 10:55:44 pegasus cupsd[9287]: [Job 1260] |
./base/gsicc_manage.c:2025: gsicc_set_device_profile(): cannot find device
profile
Sep 14 10:55:44 pegasus cupsd[9287]: [Job 1260] GPL Ghostscript 9.24:
Unrecoverable error, exit code 1
Sep 14 10:55:44 pegasus cupsd[9287]: [Job 1260] Page = 612x792; 12,12 to
600,780
Sep 14 10:55:44 pegasus cupsd[9287]: [Job 1260] slow_collate=0,
slow_duplex=0, slow_order=0
Sep 14 10:55:44 pegasus cupsd[9287]: [Job 1260] This document does not
conform to the Adobe Document Structuring Conventions and may not print
correctly.
Sep 14 10:55:44 pegasus cupsd[9287]: [Job 1260]
./base/gsicc_manage.c:1244: gsicc_open_search(): Could not find
default_gray.icc
Sep 14 10:55:44 pegasus cupsd[9287]: [Job 1260] |
./base/gsicc_manage.c:2025: gsicc_set_device_profile(): cannot find device
profile
Sep 14 10:55:45 pegasus cupsd[9287]: [Job 1260] PID 9941 (gs) stopped with
status 1!
Sep 14 10:55:45 pegasus cupsd[9287]: Expiring subscriptions...
Sep 14 10:55:45 pegasus cupsd[9287]: [Job 1260] PID 9942 (pstops) exited
with no errors.
Sep 14 10:55:45 pegasus cupsd[9287]: [Job 1260] PID 9937
(/usr/lib/cups/filter/pdftops) stopped with status 1.
Sep 14 10:55:45 pegasus cupsd[9287]: [Job 1260] HP PS filter ENDS
"Unrecoverable error, exit code 1" seems to be key.
I noticed that the ghostscript rpm was updated on 9/5/2018; could this be
the source of this problem, and has anyone else encountered something
similar?
Much thanks,
Max Pyziur
pyz(a)brama.com
5 years, 7 months
singing hard drive
by ToddAndMargo
Hi All,
Fedora 28 x64
I have a server at a customer site whose hard drive
(mechanical) is constantly singing/rattling.
How would you chase down the offender?
Many thanks,
-T
5 years, 7 months
astropy.io.ascii
by Patrick Dupre
Hello,
How can I install astropy.io.ascii
in fedora?
Thank.
===========================================================================
Patrick DUPRÉ | | email: pdupre(a)gmx.com
Laboratoire de Physico-Chimie de l'Atmosphère | |
Université du Littoral-Côte d'Opale | |
Tel. (33)-(0)3 28 23 76 12 | | Fax: 03 28 65 82 44
189A, avenue Maurice Schumann | | 59140 Dunkerque, France
===========================================================================
5 years, 7 months
Appstreram?
by Jonathan Ryshpan
Whenever Discover, the KDE App manager starts, it shows this message:
Please make sure that Appstream is properly set up on your system.
Wikipedia tells me that:
AppStream is an agreement between major Linux vendors (i.e. Red Hat,
Canonical, SUSE, Debian, Mandriva, etc.) to create an infrastructure
for application installers on Linux and sharing of metadata.
but there's little more on the web.
Discover seems to run just fine.
How can I verify that Appstream is set up properly? If not, how can
the installation be fixed?
Thanks - jon
5 years, 7 months
