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  1. digitaltrails

    How to shorten first line characteres in multiple files

    You'd have to start with the original files and capture a bit of each match so you can append .chr1 onto it: sed 's/>Vibrio_cholerae_\([^\W]*\)/>\1.chr1/' The \( \) enclose a capturing group that follows Vibrio_cholerae_. The group to be captured is [^\W]*, which is to say a set of...
  2. digitaltrails

    Brightness and contrast control for desktop monitors

    Oh, OK. Using xrandr to squish the brightness toward one end or the other of a fixed physical backlight brightness effectively cuts the dynamic range available to X11 - effectively providing less bits to distribute the color over. Where as using DDC to adjust the backlight just shifts the...
  3. digitaltrails

    Brightness and contrast control for desktop monitors

    Exactly so - I did deliberately say "I won't directly benefit..." :)
  4. digitaltrails

    Brightness and contrast control for desktop monitors

    Thanks, but the main HiDPI monitor isn't an issue, I just set my font sizes as I wish. I scale up my non HiDPI 1.75 to match that. I'll be sticking with KDE, they're rapidly addressing many of the issues that bug me. I've got the furniture arranged the way I want it, I'll likely never...
  5. digitaltrails

    Brightness and contrast control for desktop monitors

    It's a bit puzzling... Does it use DDC/CI? I guess it must if it's changing the actual backlight. One of the reasons I went with ddcutil, was that it seemed to robustly deal with DDC/CI for different monitors. I'm also a bit confused because RedShiftGUI appears to include a binary file...
  6. digitaltrails

    Brightness and contrast control for desktop monitors

    I think HDR is commonly/often included these days, but you don't have to enable it. In fact I don't turn on or use HDR, but nevertheless, the newer backlight is far far brighter :cool:. A brighter backlight is actually very useful in a sunny room. On the other side of the equation, when the...
  7. digitaltrails

    Brightness and contrast control for desktop monitors

    If anyone is interested in brightness and contrast controls for external desktop monitors (Visual Display Units), read on... A while back I bought a new monitor that happened to be HDR, that means it also has a very bright backlight. In daylight the backlight is great, but it's too bright at...
  8. digitaltrails

    merging 2 .pdf into 1

    Thanks, I missed that bit, or was psychologically in denial of such an approach being possible :)
  9. digitaltrails

    How to shorten first line characteres in multiple files

    The pattern argument to sed is slightly wrong, this would work: sed 's/>Vibrio_cholerae_/>/g' This just changes >Vibrio_cholerae_ to >. If there is only one line to change in each file, the `g` is unnecessary, so the pattern could be: sed 's/>Vibrio_cholerae_/>/'
  10. digitaltrails

    merging 2 .pdf into 1

    From poppler-tools-23: pdfunite(1) General Commands Manual pdfunite(1) NAME pdfunite - Portable Document Format (PDF) page merger SYNOPSIS pdfunite [options] PDF-sourcefile1..PDF-sourcefilen PDF-destfile...
  11. digitaltrails

    Issue with ACL's

    If I read the post correctly, it was a username of user100, not UID 100. So the UID is not likely an issue.
  12. digitaltrails

    Issue with ACL's

    Thanks for the follow up, now I've learnt something too.
  13. digitaltrails

    Issue with ACL's

    In order to be able to alter an existing file, you also need permission to update the directory it resides in. The permissions on /tmp are usually rxwrwxrwt, the t (sticky bit permission) will only allow the owner to modify a resident file. Rather than applying an ACL or permissions to /tmp...
  14. digitaltrails

    [Solved] This feels like a stupid question: How to make "everything".. bigger?

    It looks like KDE Plasma 5.26+ may have addressed the issue of blurry xwayland-apps: https://pointieststick.com/2022/06/17/this-week-in-kde-non-blurry-xwayland-apps/
  15. digitaltrails

    [Solved] This feels like a stupid question: How to make "everything".. bigger?

    Gnome wayland fractional scaling appently results in blurry X-Window apps because "any scale above 100% - fractional or not - reduces the screen size available to X applications proportionally"...
  16. digitaltrails

    [solved]How to install an linux app when there isn't a option for your distro?

    Isn't that "application" just the Radeon driver? I'm not a Radeon user, but the advantage of using an AMD GPU is that the driver is baked into the kernel, so there is no driver to download (unless you have an old kernel that doesn't support that particular card or you elected not to include it...
  17. digitaltrails

    [solved]How to install an linux app when there isn't a option for your distro?

    It depends on the nature of the application. If source is available and the build dependencies are not too complex, then I'll just build it myself. If it's a normal user application with fairly standard library requirements, and comes in rpm format, I might use rpm2cpio to take the rpm...
  18. digitaltrails

    How to debug persistent crashing ?

    It would help if you code quoted log text to make it easier for us to read, like this: sudo smartctl /dev/sda -a smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-136-generic] (local build) Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org === START OF INFORMATION...
  19. digitaltrails

    How to debug persistent crashing ?

    I would start by looking at the logs. Have you checked the logs using journalctl or looked in /var/log/ or at ~/.local/share/sddm/xorg-session.log (I'm not exactly sure where ubuntu keeps some of its log files). If it uses journalctl, then journalctl --boot -1 after a reboot should be worth a...
  20. digitaltrails

    Share your backup scripts / software ideas and strategies

    Verification not part of my daily backup routine because, for 1.4 TB, it takes too long. Instead, I occasionally run rsync --dry-run --verbose --checksum to see if anything unexpected has changed. Doing that check comparing the /home SSD and the internal backup drive this takes about 5.5...
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