July 2020 - luv-main - example.com

Additional info, Gnome 3.30.2
by Mark Trickett 19 Jul '20

19 Jul '20

Hello All, I forgot to mention the display manager, which is also where significant issues about the UI arise for me. The old Windows 3.x interface was limited, but functional. Gnome, and others, did add and improve, but the latest iterations have forgotten usability as much as the much reviled Windows 10 "tiles" interface. Some of my query does address issues with Gnome, and I am open to discussion of alternative window/display managers that might be more like what I am used to. Regards, Mark Trickett

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32 bit CAPT printer driver under 64 bit Debian Buster
by Mark Trickett 18 Jul '20

18 Jul '20

I have had this Canon LBP5050N printer quite a while, and it saw some use with a visitor running Windows on a laptop. I did try to get it up and running in the past, but the printer driver is something of a nightmare to install even on a 32 bit system. Why persist, because it is a photo quality colour laser printer, it will connect USB, but as the N at the end of the designation indicates, it has a network connection. Any help would be appreciated. Apart from that printer, I will be sorting out a HP LJ4+ with a network card, not genuine HP, and may need to alter the IP address it currently has, along with another obsolete colour laser, but I gather that the support for Brother is much easier. Regards, Mark Trickett

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Scanner success, or so far
by Mark Trickett 18 Jul '20

18 Jul '20

Hello All, I have managed to do a scan with scanimage from the command line, this was what worked for me. <quote> I experience the same problem with 1.0.27-3.2. Inspecting the udev rules, I found that the file 60-libsane.rules is missing a line to apply permissions to the device if it has been recognized. Such a line is present towards the file’s end in older versions: ENV{libsane_matched}=="yes", RUN+="/bin/setfacl -m g:scanner:rw $env{DEVNAME}" Putting this line into a file /etc/udev/rules.d/65-libsane.rules allows scanners to be recognized normally after a reboot. -Juergen <endquote> I copied the line and put it in the correct file, owned by root, and group of root, and it is working. There are no other files in /etc/udev/rules.d/ where I was expecting to find some. I then unplugged the scanner, and plugged it back in. This is the LIDE 210, and tomorrow I will try the LIDE 120 that the earlier backends for sane would not support. Regards, Mark Trickett

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Scanner works, and does not
by Mark Trickett 18 Jul '20

18 Jul '20

Hello All, An "interesting" scanner issue. I have been reading up on Debian bug reports, and there is similarities, but also differences. I am using Debian Buster, I think it is up to date, I can scan with Simple Scan, but not with scanimage from the command line. I have found the scanner with lsusb, the permissions look right, and looking at other bits, I cannot see any obvious fault. I have not had to add myself to the scanner group in the past, and it appears that may not fix the issue from reading. I would appreciate comments and suggestions. Regards, Mark Trickett

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Resizing the whole screen with Debian 10 and Wayland
by Mark Trickett 18 Jul '20

18 Jul '20

Hello all, I am having a few problems with Debian 10 (Buster) 64 bit, the image, even during the boot sequence, more than fills the screen. I loose some of the text off the left edge of the screen, and more all round once up and running with Wayland, including the top bar. I also am having trouble resizing windows, currently Firefox is running maximised, but I want to reduce it a bit and I am having trouble getting any response. It is running on an AMD Ryzen 5 with 16 Gb of ram, and Gigabyte Nvidia Geforce GT 710 video card (NV106) driving a 24" LED Wintal 12V TV. While I can comprehend what Wayland is trying to do, and why, I am finding the discard of the older metaphors and way of working to be a serious "bug". They do have some excellent ideas, the top left corner hotspot is not intuitive, at least at first, and the new "menu" is not without merit, but such abandonment of prior ways of working is more than just irritating, it gets in the way of doing things. Regards, Mark Trickett

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KVM pc-i440fx-5.0 vs pc-q35-5.0
by Russell Coker 13 Jul '20

13 Jul '20

https://documentation.suse.com/sles/15-SP1/html/SLES-all/cha-libvirt-config… For KVM, QEMU, and some other AMD64 virtual machine systems that use QEMU code you have a choice of pc-i440fx-5.0 (default) and pc-q35-5.0 for the machine type. The command "kvm -L help" gives you a list of machine types. The above URL is the only one I could find mentioning the difference, it says that "q35 is an Intel* chipset and includes PCIe, supports up to 12 USB ports, and has support for SATA and IOMMU". https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/latest-vir… I have the virtual IO drivers for storage (included in Linux by default and available for Windows at the above URL). I use the curses terminal for Linux VMs and am experimenting with VNC for Windows VMs so don't need USB keyboard and mouse. I don't need passthrough PCIe and the IOMMU only matters if you are running a hypervisor not for a guest. So would there be any benefit in using q35? -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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S390X emulation
by Russell Coker 05 Jul '20

05 Jul '20

https://etbe.coker.com.au/2020/07/05/debian-s390x-emulation/ I just wrote a blog post about how to setup S390X emulation on Debian, a virtual mainframe running Linux. I have a play machine you can login to if you want to login to a virtual S390. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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PCI Ethernet cards for free
by Russell Coker 01 Jul '20

01 Jul '20

I have some 2 port PCI 100BaseT cards. These are sometimes really useful (and were expensive), but most machines only have PCIe nowadays. Email me off-list if you want some. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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