• 1 Post
  • 25 Comments
Joined 3 years ago
Cake day: June 25th, 2023
  • ryrybang@lemmy.worldtoLinux@lemmy.ml•*Permanently Deleted*
    1·
    3 months ago

    Thanks for reading through this. No Nvidia card. it’s AMD Ryzen 7 CPU with integrated Radeon Vega 10 GPU. 20 GB system memory with 2 GB allocated for the video card. I didn’t install anything for graphics, I just let Fedora do its defaults.

    I looked up the codecs to get the specifics. This was the first thing I found when having Firefox + YouTube issues: https://docs.fedoraproject.org/en-US/quick-docs/openh264/

    Installed that and it wasn’t any better. Then had to figure out how to remove it and try the rpmfusion stuff (whatever that is).

    Here’s the output of systemd-analyze critical-chain:

    The time when unit became active or started is printed after the "@" character.
The time the unit took to start is printed after the "+" character.

graphical.target @12.832s

└─sddm.service @12.832s

  └─plymouth-quit.service @12.727s +98ms

    └─systemd-user-sessions.service @12.681s +20ms

      └─remote-fs.target @12.659s

        └─remote-fs-pre.target @8.131s

          └─nfs-client.target @8.130s

            └─gssproxy.service @8.044s +85ms

              └─network.target @8.037s

                └─wpa_supplicant.service @8.002s +33ms

                  └─basic.target @4.810s

                    └─dbus-broker.service @4.627s +137ms

                      └─dbus.socket @4.607s +1ms

                        └─sysinit.target @4.596s

                          └─systemd-resolved.service @4.452s +143ms

                            └─systemd-tmpfiles-setup.service @3.827s +613ms

                              └─local-fs.target @3.814s

                                └─boot-efi.mount @3.692s +119ms

                                  └─boot.mount @3.552s +118ms

                                    └─systemd-fsck@dev-disk-by\x2duuid-e61e388b\x2d6938\x2d4f16\x2d9746\x2dce2c084d3f44.service @3.206s +170ms

                                      └─dev-disk-by\x2duuid-e61e388b\x2d6938\x2d4f16\x2d9746\x2dce2c084d3f44.device

    And here’s the output of systemd-analyze plot > plot.svg (had to covert to jpg to allow the upload):

  • ryrybang@lemmy.worldtoLinux@lemmy.ml•*Permanently Deleted*
    1·
    3 months ago

    I just switched from Win 10 & 11 to Fedora KDE, about 2 weeks ago. Total Linux newbie. Not looking to hack my OS or anything. I’m relatively computer literate, but not at all a programmer. I just want an OS that works and mostly gets out of the way. And obviously doesn’t spam me with ads or steal my data or lock me into a subscription.

    So far: Fedora and Plasma have been wonderful. But…

    • Computer feels slightly slower. I’m surprised by this.

    • Fedora or Mint…“it just works” isn’t exactly true based on my experience. “Most stuff mostly works okay” is more like it.

    • I had a service keep crashing upon boot: xwaylandvideobridge. Trying to read people’s reports and diagnose was frustrating. I ended up removing it (which I had to look up and figure out how to do). Not sure if I broke anything or not, but it seems like things are working.

    • Boot time is definitely slower compared to Win11. Not slow, just slower. Like 35 seconds. I tried to figure this one out using stuff like “systemd-analyze” but that was also annoying / frustrating. Trying to interpret the output and then trying to interpret what the tech people are saying in the forums. Plus my specific output I was getting from those programs didn’t look right or make logical sense (like it was adding up a bunch of processes as 11 seconds, but then saying each of those processes itself took 11 seconds, which I guess is possible if they are running simultaneously, but not sure).

    • Weird stuff with youtube / video codecs. Firefox would glitch/hang/freeze playing youtube, especially if god forbid you try and do something radical like scroll back in a video. I seriously thought my video card was self-immolating. I finally just figured this out after much suffering. I think there was something about cisco h.whatever codecs, which I installed. But those are apparently terrible. Then I followed this not newbie-friendly fix after trying to figure out how to remove the Cisco ones: https://rpmfusion.org/Howto/Multimedia?highlight=(\bCategoryHowto\b). Not sure why this kind of stuff doesn’t work out of the box. Having one of the biggest websites glitch using one of the biggest browsers is…not…great.

    • HP printer: finally, some good news! I have an HP laser printer and had to print some stuff off last night (a PDF and Word doc). Plugged in the printer, it recognized it correctly, I added printer, it added itself smoothly. Then ctrl-p worked flawlessly.

  • ryrybang@lemmy.worldtoAsk Science@lemmy.world•In space how does one tell what direction being no fixed point? Or how does one tell up from down and so on?English
    4·
    3 months ago

    Speed of light is a constant. For everyone. Because it’s linked to time, which is part of 3D space.

    Let’s say you are standing still. Shoot a laser straight out in front of you. Measure the speed, you get c, the speed of light.

    Now, start running forward at 10 mph. Shoot the laser again. Measure the speed. You still get c. Not c + 10, but exactly c.

    Run backwards shoot laser out in front of you. Still exactly c.

    Because your personal time/clock has changed by moving so that you end up measuring the speed of light the same.

    Anyone looking at you, regardless of their relative motion to you will also measure your laser at c.

    It’s just how the universe is.

    Also, speed of light isn’t really the best term. More like maximum speed of the universe. Light just happens to travel at that speed because it has no mass. Everything with no mass travels at that speed.