users November 2024

users@lists.fedoraproject.org

82 participants
98 discussions

KGpg "An error occurred while scanning your keyring"
by Jonathan Ryshpan 12 Oct '25

12 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(the driver source was fetched by git from its current github repo, so it's not out of date, it's in fact newer than the above blog post) What gives more clues is the small piece of thermal paper that came with the printer with a printout of its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 27 Jan '25

27 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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Two issues - one frustrating
by Paolo Galtieri 16 Dec '24

16 Dec '24

Folks, I have 2 issues with F40 and F40. One of them is frustrating the other a genuine problem. First the genuine problem. I have VMware installed on my system and every time I install kernel updates the compilation of the vmmon and vmnet VMware modules fail. here is an excerpt of the issue: >>> ./include/linux/rwlock.h:56:48: note: in definition of macro 'read_lock' >>> 56 | #define read_lock(lock) _raw_read_lock(lock) >>> | ^~~~ >>> /tmp/git/vmware-host-modules/vmnet-only/bridge.c:587:4: note: in expansion o >>> 587 | dev_lock_list(); >>> | ^~~~~~~~~~~~~ On another system I download the VMware modules from https://github.com/mkubecek/vmware-host-modules.git and the apply the following patch --- a/vmnet-only/vmnetInt.h +++ b/vmnet-only/vmnetInt.h @@ -41,8 +41,13 @@ compat_skb_set_network_header(skb, sizeof (struct ethhdr)), \ dev_queue_xmit(skb) \ ) -#define dev_lock_list() read_lock(&dev_base_lock) -#define dev_unlock_list() read_unlock(&dev_base_lock) +#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 9, 0) +# define dev_lock_list() rcu_read_lock() +# define dev_unlock_list() rcu_read_unlock() +#else +# define dev_lock_list() read_lock(&dev_base_lock) +# define dev_unlock_list() read_unlock(&dev_base_lock) +#endif extern struct proto vmnet_proto; and the kernel builds without issues. The reason I mention this error is that this failure occurs during the kernel update and not when I try to build the VMware modules. Now for the frustrating issue. I run the MATE desktop and since F40 I see a strange problem with mate-terminal. I have MATE configured to remember running application on logout so they are restarted when I login. At the time I logout my mate-terminals are 24x80. When I log back in they are 7x42. New ones are 24x80. So every time I login I have to resize my terminals. This is frustrating. This problem only occurs with the MATE desktop and mate-terminal combination. If I run gnome-terminal or xfce-terminal under MATE they remain at 24x80. If I run Xfce desktop and run mate-terminal it remains 24x80 through logout and login. This does not happen with F39. I don't know what changed to cause this. I first noticed this after upgrading a system from F39 -> F40. This issue also happens with F40 and F41 virtual machines and with F40 Server and doing a groupinstall of the MATE desktop. I don't know where MATE saves the session information to see if the problem is when MATE saves the current desktop state. Any assistance is appreciated. Paolo

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tip: Firefox -> File -> eMail link: Thunderbird is already running
by ToddAndMargo 15 Dec '24

15 Dec '24

Hi All, Fedora 41 thunderbird-128.4.3-1.fc41.x86_64 firefox-132.0.1-2.fc41.x86_64 Since upgrading from Fedora 39 to Fedora 41, when I go into --> Firefox -> File -> eMail link I get told that Thunderbird is already running, which it is. This is a regression bug that I reported over on: Firefox file-> email link regression: Thunderbird is already running https://bugzilla.mozilla.org/show_bug.cgi?id=1933006 Whilst our intrepid heroes over on Mozilla work on this regression, the work around is to install 124.0.1-2 from fc40's repo: # dnf downgrade firefox --releasever=40 And that worked perfectly. -T

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What is DNF Check-upgrade Actually Doing
by Stephen Morris 04 Dec '24

04 Dec '24

Hi, I have to questions around what that command is doing. 1). Why is it producing the messages "Updating and loading repositories:"and "Repositories loaded." with nothing between them which means that it didn't do anything? This functionality is independent of whether the command is issued under sudo or not. 2). When it does list repositories between the two messages, what is it actually doing when the command is not issued under sudo, particularly when issuing the command lists the two updates repositories and then issuing it again immediately after produces nothing between the two messages? regards, Steve

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DNF Upgrade Query
by Stephen Morris 01 Dec '24

01 Dec '24

Hi, When I issue the command "sudo dnf upgrade", and it decides it needs to update and refresh all repositories, with the command I've just issued I noticed that it refreshed the google-chrome repository twice. Why is DNF doing that when there is only one repository definition in the .repo file, unlike the standard Fedora .repo files which have 3 repositories defined (not necessarily all active). regards, Steve

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Re: Python 2 to 3 conversion
by Bob Marčan 01 Dec '24

01 Dec '24

On Mon, 25 Nov 2024 17:16:39 -0600 "Michael Hennebry" <hennebry(a)web.cs.ndsu.nodak.edu> wrote: > On Wed, 20 Nov 2024, Michael Hennebry wrote: > > > On Tue, 19 Nov 2024, Bob Mar?an via users wrote: > > > >> I am a retired Sysadmin who fully understands all the frustrations brought > >> about by the SW installation without real control. Although only for my > >> system, I regularly build a SW package (RPM) for SW, which is not in > >> distribution. Which is actually quite easy. So I always have a clean system > >> and can be very easy to update or delete. However, this is less and less > >> necessary as more SW is available. > > > > My guess is that it's only easy after you have done it a few times. > > This is a matter on which I would really like to be wrong. > Could you point me at directions? > > -- > Michael hennebry(a)mail.cs.ndsu.NoDak.edu What guidance do you need? https://duckduckgo.com/?q=writing+rpm+spec+file&t=ffab&atb=v366-1&ia=web https://duckduckgo.com/?q=fedora+using+mock&t=ffab&atb=v366-1&ia=web Will this be enough? BR, Bob

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F41 installation issue on Framework 16 laptop: stuck keyboard input (solution)
by Sam Varshavchik 30 Nov '24

30 Nov '24

I've been using a Framework 16 laptop that was originally installed with F40 and updated to F41 (XFCE Spin), without any issues. I just ran into a hillarious installation issue, posting it here in order to feed the search engines. I just received a second Framework 16, so I fed the F41 XFCE spin image to it. After booting it the keyboard responsiveness was horrible. Typed text took 5-10 seconds to be echoed back in the terminal, or in Anaconda. I thought I had a hardware issue, I even took it apart again, and reseated the keyboard connector, no dice. Still lagging. But when I booted to a grub prompt, the keyboard was perfectly normal. I booted back into the live image. Eventually I had a Eureka moment: I have to keep the mouse moving, constantly, in order for I/O processing to occur. I can type ahead, then touch the touchpad, and all the buffered input got echoed back immediately. Some further experimentation I determined that not only keyboard input, but also some display refreshing gets stuck until I manually move the mouse. The kernel that's shipping with the F41 live images is a dud. I ran the Anaconda installer (constantly twiddling the touchpad to keep everything moving), then rebooted (the problem remained), then dnf-update-d. After rebooting into the latest kernel, 6.11.10, everything was working fine.

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Python 2 to 3 conversion
by Patrick O'Callaghan 30 Nov '24

30 Nov '24

I'm attempting to convert a small Python-2 script to Python-3. Google appears to think that the best approach is something called 2to3, but I can't get it to work. I'm far from being a Python expert, but am at least using a virtual environment: poc@Bree:~$ cd venv poc@Bree:~/venv$ source bin/activate (venv) poc@Bree:~/venv$ type 2to3 2to3 is /home/poc/venv/bin/2to3 (venv) poc@Bree:~/venv$ 2to3 Traceback (most recent call last): File "/home/poc/venv/bin/2to3", line 5, in <module> from cmd_2to3.__main__ import main File "/home/poc/venv/lib64/python3.13/site-packages/cmd_2to3/__main__.py", line 2, in <module> from lib2to3.main import main as l2to3_main ModuleNotFoundError: No module named 'lib2to3' (venv) poc@Bree:~/venv$ pip install lib2to3 ERROR: Could not find a version that satisfies the requirement lib2to3 (from versions: none) ERROR: No matching distribution found for lib2to3 Any thoughts? I find the online documentation on 2to3 (such as it is) remarkably obtuse. poc

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