this post was submitted on 14 Sep 2024
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submitted 2 months ago* (last edited 2 months ago) by fool@programming.dev to c/linux@lemmy.ml
 

What was your last RTFM adventure? Tinker this, read that, make something smoother! Or explodier.

As for me, I wanted to see how many videos I could run at once. (Answer: 60 frames per second or 60 frames per second?)

With my sights on GPUizing some ethically sourced motion pictures, I RTFW, graphed, and slapped on environment variables and flags like Lego bricks. I got the Intel VAAPI thingamabob to jaunt by (and found that it butterized my mpv videos)

$ pacman -S blahblahblahblahblahtfm
$ mpv --show-profile=fast
Profile fast: 
 scale=bilinear
 dscale=bilinear
 dither=no
 correct-downscaling=no
 linear-downscaling=no
 sigmoid-upscaling=no
 hdr-compute-peak=no
 allow-delayed-peak-detect=yes
$ mpv --hwdec=auto --profile=fast graphwar-god-4KEDIT.mp4
# fucking silk

But there was no pleasure without pain: Mr. Maxwell F. N. 940MX (the N stands for Nvidia) played hooky. So I employed the longest envvars ever

$ NVD_LOG=1 VDPAU_TRACE=2 VDPAU_NVIDIA_DEBUG=3 NVD_BACKEND=direct NVD_GPU=nvidia LIBVA_DRIVER_NAME=nvidia VDPAU_DRIVER=nvidia prime-run vdpauinfo
GPU at BusId 0x1 doesn't have a supported video decoder
Error creating VDPAU device: 1
# stfu

to try translating Nvidia VDPAU to VAAPI -- of course, here I realized I rtfmed backwards and should've tried to use just VDPAU instead. So I did.

Juice was still not acquired.

Finally, after a voracious DuckDuckGoing (quacking?), I was then blessed with the freeing knowledge that even though post-Kepler is supposed to support H264, Nvidia is full of lies...

 ______
< fudj >
 ------
          \   ‘^----^‘
           \ (◕(‘人‘)◕)
              (  8    )        ô
              (    8  )_______( )
              ( 8      8        )
              (_________________)
                ||          ||
               (||         (||

and then right before posting this, gut feeling: I can't read.

$ lspci | grep -i nvidia
... NVIDIA Corporation GM108M [GeForce 940MX] (rev a2)
# ArchWiki says that GM108 isn't supported.
# Facepalm

SO. What was your last RTFM adventure?

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[–] confuser@lemmy.zip 22 points 2 months ago* (last edited 2 months ago) (1 children)

for me it usually goes

me: reads the manual, fails, then asks for help

person helping: heres a canned tip

me: didnt help

person helping: you should read the manual

me: no i am beyond that, i need help with my problem

person helping: oh turns out i couldnt actually help you, anyways go try somewhere else

[–] JustEnoughDucks@feddit.nl 3 points 2 months ago

And if it was an issue on github:

Closed: "couldn't reproduce" 10 seconds after that last comment.

[–] boredsquirrel@slrpnk.net 9 points 2 months ago

I learned that rpm-ostree cant remove packages from an OCI image, ever.

So even if I have a blue-build process for example in secureblue removing Firefox, it is just removed on my side, locally. Thats why I cant reinstall it.


Instead of learning about all the Flatpak packaging conventions, I just translated the docs!

[–] Skunk@jlai.lu 5 points 2 months ago

Hardware related on a Linux home built NAS.

My mobo has 2 nvme ports and supports 10th and 11th gen intel cpu. I have a 10th gen i5 and 2 nvme ssd for cache.

The biggest 512Gb ssd is on the front (normal) side of the mobo, under a heatsink. The smaller 128Gb is under the mobo, inaccessible once fixed onto the case.

In bios and in OS I can’t see the 512 cache drive, only the 128. Quick RTFM on the motherboard manual states: "Front nvme slot only works with 11th gen cpu".

FFS 🤦‍♂️

The server is fully built in a hard to fit everything ITX case.

Guess who is having only 128Gb cache instead of disassembling everything ?

[–] beeng@discuss.tchncs.de 3 points 2 months ago

Quacking, I like it!

[–] Albbi@lemmy.ca 3 points 2 months ago (1 children)

Never used Kubernetes before, but really wanted to get into it with this new project. Project already has docker-compose. Found a converter to Kubernetes. Ran it and it mostly worked, but I had to dive into a week of reading the documentation and testing to get the rest of the way there.

[–] fool@programming.dev 1 points 2 months ago

The depth of a dive is always delightful! Does K8s have a solid use-case for the project or did you just sK8 for fun?

[–] lnxtx@feddit.nl 3 points 2 months ago

No mention about the limited API in the Nessus Professional documentation.
Waste of time trying to test API, debbuging why some method doesn't work.

[–] bismuthbob@sopuli.xyz 2 points 2 months ago (1 children)

For me, it was getting a handle on rsync for a better method of updating backup drives. I was tired of pushing incremental changes manually, but I decided to do a bit of extra reading before making the leap. Learning about the -n option for testing prior to a sync has saved me more headaches than I'd care to enumerate. There's a big difference between changing a handful of files and copying several TB of files into the wrong subfolder!

[–] fool@programming.dev 1 points 2 months ago (1 children)

Oh I love the "walk me through what I'm about to do" concept. Dry runs should be more common -- especially in shell scripts...

The world would be a better place if every install.sh had a --help, some nice printf's saying "Moving this here" / "Overwrite? [Y/N]", and perhaps even a shoehorned-in set -x.

Hope your r/w wasn't eaten up by the subfolder incident (that I presume happened) :P

[–] bismuthbob@sopuli.xyz 2 points 2 months ago

I'm lucky I manually ran a few jobs before I started using rsync in scripts. When I didn't think things through, I saw the output in real-time. After that, I got very careful about testing any scripts and accounting for minor changes in setup.

[–] not_amm@lemmy.ml 2 points 1 month ago

Couldn't get the geolocation work for weeks in openSUSE. I, supposedly, read the manual and checked everywhere and even asked in the opensuse forum, since the timing was perfect with Mozilla shutting down MLS, and it probably was a reason, but also any other alternative didn't work. Some days ago I decided to RTFM of geoclue again, only to find out that I could just "hardcode" my location in an /etc/geolocation file >:(

[–] ahal@lemmy.ca 1 points 2 months ago

Wanted to see if I could do anything exciting with the new Satisfactory dedicated server API. There's no documentation of it anywhere online, but there's a random markdown file documenting it in the installation directory. Got it working but turns out it can't do much. Oh well

[–] GolfNovemberUniform@lemmy.ml 1 points 2 months ago

I think it was using the Void Linux package manager.

[–] Charlatan@lemm.ee 1 points 2 months ago

Trying to setup dnscrypt-proxy on my personal laptop. I tend to think I things are more complicated, so I went down the rabbit hole searching for all manner of issues and setup guides. It's not hard.... RTFM