users December 2024

users@lists.fedoraproject.org

55 participants
57 discussions

KGpg "An error occurred while scanning your keyring"
by Jonathan Ryshpan 13 Oct '25

13 Oct '25

This error pops up whenever my system boots up. Clicking on [Details <<] produces a message box with the single entry "Details" in it. What's happening? Thanks - jon

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ESC/P thermal receipt printers and Linux...
by Fernando Cassia 19 Aug '25

19 Aug '25

Running dmesg after plugging my POS-5890K labelled usb thermal receipt printer, it identifies itself as full-speed USB device number 9 using ehci-pci idVendor=0416, idProduct=5011 Mfr=1, Product=2, SerialNumber=3 Product: POS58 USB Printer Manufacturer: GD32 Microelectronics SerialNumber: Printer I found the hard way that these printers are not supported by CUPS by default ... one has to go the extra length to either send esc/p codes manually via your own app http://kg4zqz.blogspot.com/2016/08/escposf-thermal-printer-filter-and.html ...or compile a driver from source, just like 20 years ago for some printers... maybe 2018 will be the year of desktop linux *sarcasm* I've tried this driver and it didn't work... http://scruss.com/blog/2015/07/12/thermal-printer-driver-for-cups-linux-and… (the driver source was fetched by git from its current github repo, so it's not out of date, it's in fact newer than the above blog post) What gives more clues is the small piece of thermal paper that came with the printer with a printout of its self-test (surely from Windows). It reads: 58-IV-U Thermal Printer Version: 58.E-Z04-AA Revised date: 06-Jan-2017 Command Standard: EPSON (ESC/POS) Print mode: Normal mode & Hex Mode Print method: Line Thermal Print width: 384 dots/line Print speed: 90 mm/s Chinese Mode: NO Print density: Level3 Current Codepage:0 Interface Type: USB Current Character: Chinese (GB18030) Alphanumeric Code Page: 0: OEM437 (Std.Europe) 1: Katakana 2:OEM850 (Multilingual) (…) 96:(Thai2) I wonder why the CUPS folks have not released a generic “EPSON ESC/POS” printer driver where the above parameters can be tweaked and entered manually. The driver mentioned above was compiled, and installed but didn’t work. A sample print gave gibberish. A second text-only printing (by clicking the CUPS “print self-test page” read “IF YOU CAN READ THIS YOU’RE USING THE WRONG DRIVER FOR YOUR PRINTER”. A crude bug-finding code it seems… Any ideas before I head over to the CUPS maling list and pull my hair? For instance, this blog post https://mike42.me/blog/2015-03-getting-a-usb-receipt-printer-working-on-lin… talks about using "usblp" but commenters say "usblp" was deprecated (already in 2015) So what does replace usblp? And look, here someone else also pulling his hair. https://stackoverflow.com/questions/45926734/raw-cups-printer-how-to-avoid-… FFS, a line printer was the first type of printer, back in the days of RS232 ports. If we can't get a USB line printer detected and configured and send ASCII to it, we're doomed. All because there's a dozen poorly documented layers of software crap obscuring it... FC

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Fedora F41 Hard Disk Performance
by Stephen Morris 28 Jan '25

28 Jan '25

Hi, To test my hard disk performance I have run Kdiskmark and used the Real World Performance Profile. For its sequential read performance it is showing around 156 MB/s on my ST3000DM007-1WY1 (3TB Seagate Barracuda), which given that device support 1/3/6 Gb/s I/O speeds and the device is plugged into a 6Mb/s Sata port on the motherboard, is very poor performance. Doing some research on disk performance I found a reference to bad disk performance be attributable to BTRFS and that the disk should be formatted as EXT4, is this sentiment reasonable and if so why is Fedora pushing the use of BTRFS. regards, Steve

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default printer
by Patrick Dupre 18 Jan '25

18 Jan '25

Hello, I cannot change my default printer. It may be a bug. I tried gnome-control-center system-config-printer I set cat ${HOME}/.cups/lpoptions Dest XP-4200 Where it is fine Actually, it must be Default XP-4200 in /etc/cups/printers.conf </Printer> <DefaultPrinter XP-4200> PrinterId 9 UUID urn:uuid:7cc7a97b-0232-3d49-4cca-12994ccdb510 Info EPSON XP-4200 Series MakeModel EPSON XP-4200 Series , Epson Inkjet Printer Driver (ESC/P-R) for Linux DeviceURI usb://EPSON/XP-4200%20Series?serial=5842374A3134333728&interface=1 State Idle StateTime 1735644923 ConfigTime 1735651795 Type 4124 Accepting Yes Shared Yes JobSheets none none QuotaPeriod 0 PageLimit 0 KLimit 0 OpPolicy default ErrorPolicy stop-printer </DefaultPrinter> But still another printer is used as default printer Thanks =========================================================================== Patrick DUPRÉ | | email: pdupre(a)gmx.com ===========================================================================

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Colorized vtty text...
by Felix Miata 10 Jan '25

10 Jan '25

...annoys me greatly. There's simply not enough contrast for the comfort I expect from vtty use. e.g., dnf5 command output. In general, I'd like to limit vttys to 4 colors: FG & BG as specified in .bashrc by setterm, plus red for errors (e.g. dead symlinks), and suitable contrast color for red, like it used to be. Is this possible? If so, how? If not possible globally, how about specifically for dnf5? -- Evolution as taught in public schools is, like religion, based on faith, not based on science. Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata

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Opengl Access
by Stephen Morris 09 Jan '25

09 Jan '25

When an application is run and it says it can't access Opengl, when I issue the command "sudo dnf provides */opengl", how do I determine what needs to be installed when that command returns a whole host of different packages which include documentation packages? Unfortunately I don't remember which application it was I was trying to run and I don't remember whether it did what I was trying to do or whether I went looking for something else. regards, Steve

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Re: qemu/kvm startup
by Jonathan Billings 03 Jan '25

03 Jan '25

On Dec 28, 2024, at 14:00, Robert McBroom via users <users(a)lists.fedoraproject.org> wrote: > > Have two installations of f41 setup to run virtual machines. On one, all that is required to get started is to execute "virt-manager" in a terminal with privilege. On the other, I have to use "systemctl start libvirtd" first or "virt-manager" doesn't find any of the installed machines. Nothing has been changed in "/etc/libvirt" configuration files. > > What needs to be set to get the virtual machines to initialize on the second installation? If one is upgraded from a prior release that already had libvirtd.service started on boot, it probably still does so you don’t need to start it every boot. In F41 (maybe 40, my memory is foggy with holiday cheer), libvirtd was changed to use socket activation, so it *should* start if the libvirtd.socket is enabled and activated. But I believe there’s service can be started/enabled as well, which is what I do since I have some VMs that start on boot. -- Jonathan Billings

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qemu/kvm startup
by Robert McBroom 03 Jan '25

03 Jan '25

Have two installations of f41 setup to run virtual machines. On one, all that is required to get started is to execute "virt-manager" in a terminal with privilege. On the other, I have to use "systemctl start libvirtd" first or "virt-manager" doesn't find any of the installed machines. Nothing has been changed in "/etc/libvirt" configuration files. What needs to be set to get the virtual machines to initialize on the second installation?

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betterbird in the repos?
by ToddAndMargo 28 Dec '24

28 Dec '24

Hi All, Is betterbird hiding somewhere in the repos? $ dnf provides betterbird ... No matches found. -T

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Tracer Output
by Stephen Morris 27 Dec '24

27 Dec '24

Hi, How does Tracer decide on what messages to display and what instructions to provide. For example, what does it look at to produce the following snippet of its output, especially when I ran "sudo akonadictl restart" and that command said Akonadi wasn't running? If it is restarting other associated applications then where are the messages about what it is restarting and whether or not it was successful? You should restart: * Some applications using: akonadictl restart akonadictl restart * These applications manually: DiscoverNotifier akonadi_archivemail_agent akonadi_birthdays_resource akonadi_contacts_resource akonadi_followupreminder_agent akonadi_ical_resource akonadi_indexing_agent akonadi_maildir_resource akonadi_maildispatcher_agent akonadi_mailfilter_agent akonadi_mailmerge_agent akonadi_migration_agent akonadi_newmailnotifier_agent akonadi_sendlater_agent akonadi_unifiedmailbox_agent sudo akonadictl restart Akonadi is not running. regards, Steve

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