When attempting to enable GPU playback processing in Kdenlive, the checkbox is greyed out. The movit & rtaudio packages are installed. Any ideas why this might be? I’m using Endeavour / Arch with an AMD 6800 GPU; kdenlive is installed from the Arch repos.
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Same issue here, curious if there’s a possible fix.
Kernel: 6.9
GPU: Iris Xe, another machine tested with AMD Vega 8 and 5700 XT also doesn’t work.
Distro: Arch
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Same problem, also on arch. I installed movit from AUR and that didn’t seem to make a difference.
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You mean these items:
I am also using an AMD 6800H with Radeon graphics and an Nvidia RTX3060 card.
I installed Kdenlive from Flathub. Maybe you should try that.
No, those options are for encoding. The OP is talking about the option in settings->playback to use the GPU for playback while editing.
The tooltip for that option though says it needs MLT compiled with movit et al. - so if that’s correct, just installing movit and rtaudio isn’t sufficient, you need to rebuild MLT with support for them enabled.
I have a vague memory of this no longer being done for the prebuilt binaries because it was Too Unstable to use at present, but you’ll have to hunt through the release notes to find more details on that.
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The solution on reddit doesn’t seem to be working and, oddly, I still have the same issue with the appimage.
It looks like GPU playback is hardcoded disabled in Kdenlive. In mainwindow.cpp lines 258-262,
// Disable movit until it's stable
m_gpuAllowed = false;
KdenliveSettings::setGpu_accel(false);
// m_gpuAllowed = EffectsRepository::get()->hasInternalEffect(QStringLiteral("glsl.manager"));
I guess we’ll have to wait until it’s fixed.
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Hello ! I have the same issue
I’ve already done the easiest part : get MLT and movit
Does anyone have a clue or anything so far ?
Hi, and welcome to the community and forum.
The post from @Nathan right above yours says it all: “Disable movit until it’s stable”. And it’s not yet stable enough …
Then should we use another video editor for the time being?! 
Hmm, not a matter of should, more of could, me thinks. FOSS also means freedom of choice, so choose what helps you accomplish your goals …
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No. Actually my reply was out of frustration. Yesterday I installed Davinci Resolve 18.6, which I downloaded earlier, in Windows and it had no issue of recognizing my GPU which is Nvidia GT730 2GB DDR5. But unfortunately when I ran the KDENLIVE ‘Config Wizard’ (also in Windows), it could not detect the GPU. Oh, I ran the check after selecting ‘Nvidia Hardware Acceleration’. Same thing happens in Linux also. So, either it is a bug or something I am missing. I don’t know what. As I want to migrate from Windows to Linux permanently, Fedora to be precise and I am in the learning phase now, I tried installing ‘Davinci Resolve’ in Linux as it is my preferred FREE industry standard all-in-one video editor for my small projects. So, I tried to install it and found that installing Davinci in latest Linux distros is not only a P-I-A but also very problematic to run (if somewhat you install it in Linux) except Blackmagic’s own recommended distro specifically made to run Resolve but it is based on very old kernel. So, I stopped trying. Now, my second and only choice is KDENLIVE because I don’t want to use SHOTCUT as its owner, Dan Dennedy is an arrogant fool. I will disclose the proof in Fedora’s community forum under the same username I use here. Anyway. So, as the same problem of NOT RECOGNIZING THE GPU is happening in both Windows and Fedora, I think either it’s a problem of KDENLIVE itself or I am missing something. Please help me to solve this problem. I need this. 
Check whether a bug report exists already (bugs.kde.org), and if so add your comments and observations. If there is none, create one with as specific information as possible.
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I searched there. No such bug report. So, I have submitted one: 492393 – Kdenlive is not recognizing Nvidia GT 730 2GB DDR5 graphics card.
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@berndmj , still no update on my bug report. Looks like the assigned person has not found it interesting or didn’t give any importance. 
Hmm, you created the bug report on August 30th. Today is September 6th. The dev team is just two people strong, they work on Kdenlive in their free time (meaning they have a job irl to put food on the table and a roof over the heads of their families), and they need a breather once in a while. And they just finished a release with lots of bug fixes (some have been around for more than seven days) and cool new features.
I am just asking for some patience. Alternatively, you could donate some serious money to pay for a developer who could then work on improving GPU support …
it’s hardcoded in mainwindow.cpp in line 178 to 179 , When i set it to true and recompiled the kdenlive , It just crashed everytime means all my entire projects are garbo now ;(
It’s a problem with the dependency movit library.
The compilation was done and tested in Arch Linux with no compilation errors.
So please don’t wait much longer if you are time limited then must use a different video editor & that’s it