Youtube videos are laggy

Youtube videos are laggy special in full screen, what is the problem? and how to fix it? I’m using Lenovo Ideapad gaming 3 16IAH7 with nividia rtx 3060

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Increase the number of VCPUs assigned to your qube.
Maybe also this issue with youtube specifically:

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Also relevant:

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Disable ambient/theater mode.

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@OvalZero I don’t think that this is the problem as the gpu is somewhat powerful.

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how do you check how many VCPU your system has total and what happens to other qubes if you max it?

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You can get the number of pCPUs using this command in dom0 terminal:

lscpu

Or:

xl cpupool-list
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First I’m on Qubes (4.2.3) / Fedora 41 and I’m also having these issues on watching laggy youtube videos using Firefox (133.03) especially in full-screen. So I tried Mullvad Browser (14.03) and Microsoft Edge (131.0.2903.112) and for me it was better no more laggy videos even in 4K. Hope this helps :smiley:

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I wonder if a GPU passthrough will fix this issue? I also tried using brave browser but no result.