Do you have a web hosting business?
No. But a large family 
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Keep your family close to your heartt!!!
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Good advice
My username is âskywalkerâ⌠in every Linux related forum and in my PC. 
Nope. Though I have done everything you have advised me , the same âUnsupported GPUâ warning is showing and no GPU and no opencl.
Command:
sudo dnf5 install ocl-icd
Result:
Package âocl-icd-2.3.2-7.fc41.x86_64â is already installed.
Yours is working probably because of newer GPU model. 
I have uninstalled Davinci and deleted all the rest of the folders and files related to Resolve and now I am going to test that H3rz3n guyâs Davinci Helper. Letâs see what happens. BTW, how can I see whether the GPU is idle or not when working in the video editor?
The tool radeontop tells it.
What does clinfo output?
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It is either not working or I am missing something. I have downloaded it from here: GitHub - clbr/radeontop and I ran the command:
./radeontop
inside the extracted folder, it gave the result:
bash: ./radeontop: No such file or directory
What am I missing? I have downloaded the prerequisite dependencies except âlibncursesâ because it is showing:
No match for argument: libncurses
So???
clinfo output:
Number of platforms 0
ICD loader properties
ICD loader Name OpenCL ICD Loader
ICD loader Vendor OCL Icd free software
ICD loader Version 2.3.2
ICD loader Profile OpenCL 3.0
OpenCL is there, OCL ICD is there and Davinci Resolve cannot detect RX 550 GPU⌠what a shame. 
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I have used this âHelperâ. It is beautiful and very easy and the result:
DEBUG : No supported GPU has been found inside your system.
If you know that you have a DaVinci Resolve compatible GPU,
please open an issue and paste this error code on the project GitHub page
You have to be in the directory where radeontop is when you issue that command
or
you have to type the full pathname
or
you have to move radeontop to a bin directory that is in your PATH, and then you can just type radeontop
Read up on paths in linux
https://medium.com/towards-data-engineering/understanding-the-path-variable-in-linux-2e4bcbe47bf5
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Thatâs not good.
Iâm now off for the rest of the week.
Regarding radeontop you need someone knowing Fedora.
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root@fedora:/home/skywalker# cd Downloads
root@fedora:/home/skywalker/Downloads# ls
DaVinci_Resolve_19.0.3_Linux.zip radeontop radeontop-master.zip
root@fedora:/home/skywalker/Downloads# cd radeontop
root@fedora:/home/skywalker/Downloads/radeontop# ./radeontop
bash: ./radeontop: No such file or directory
root@fedora:/home/skywalker/Downloads/radeontop#
I already did this. What more should I do?
Read about paths. Then you will understand the bash: message.
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I have installed radeontop using
sudo dnf5 install radeontop
and it is working. Thanks. BTW, I will read that article on âpathâ.
Iâm back, it was a great time spent at EICMA, Milan.
Huge lots of motorcycles, great news from NIU, all kind of stuff offtopic here 
So back to the AMD and OpenCL, I found a hint:
Which tells, it may be necessary to install additional kernel modules (linux-modules-extra on Ubuntu), which seemed to help.
Fedora seems to have something similar:
Iâd try to install that package, and take a second chance for the previous method.
Fingers crossed⌠
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@kovacslt , @nevj radeontop is showing that graphics card usage increases when I use kdenlive (I have started using kdenlive as Davinci Resolveâs âUnsupported GPUâ problem is still unsolved). That means my RX 550 is working. Though my CPU usage is also high⌠moving between 70% - 88%. Is it normal? I will later record a video on it I will post it here.
Another thing, I made a partition automount on startup using fstab and it did automount. But I could not create any file or folder in it. Whenever I tried to do that, it showed, âYou have no permissionâŚâ!!! Why!!! I have the Administrative privilege but Fedora didnât let me do it.
The root has it, you donât. Hence the sudoâŚ
As root, you need to add write permission either to your user, or to a group your user is member of.
Read this:
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@kovacslt , @nevj and @other friends, regarding the GPU usage, please see the pictures below:
- GPU, CPU and RAM usage during playback in kdenlive:
Now what is your opinion. Is my GPU working correctly or I have to do something more?
Playing a timeline in an editor is definitely not the same as playing a video in a player. So high CPU usage is not a surprise.
As for the actual values, it would be interesting to know:
-resolution/framerate of the timeline
-resolution/framerate of the footage you dropped into the timeline
-encoding method and bitrate of the footage
Just to get the idea: a 4k60P footage encoded in h265 is way much harder to decode and play, than 720*480 mpeg2.
Edit:
If for something your GPU is used, it may be VAAPI and/or OpenGL.
If those drivers are installed, glxinfo and vainfo will tell.
For example glxinfo | grep vendor should return something AMD or alike.
So does vainfo | grep Driver.
Edit:
Just got back to my desktop which has AMD GPU.
The results here, for reference:
laco@Nagygep:~$ vainfo | grep Driver
libva info: VA-API version 1.17.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/radeonsi_drv_video.so
libva info: Found init function __vaDriverInit_1_17
libva info: va_openDriver() returns 0
vainfo: Driver version: Mesa Gallium driver 22.3.6 for AMD Radeon RX 6600 XT (navi23, LLVM 15.0.6, DRM 3.49, 6.1.0-26-amd64)
laco@Nagygep:~$ glxinfo | grep vendor
server glx vendor string: SGI
client glx vendor string: Mesa Project and SGI
OpenGL vendor string: AMD
laco@Nagygep:~$
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See the clip details in the image below (RED marked):
I captured this footage using my action camera. I think it was captured in 2k.
vainfo | grep Driver result:
bash: vainfo: command not found...
glxinfo | grep vendor result:
server glx vendor string: SGI
client glx vendor string: Mesa Project and SGI
OpenGL vendor string: AMD