This update, among other things, adds support for VK_EXT_descriptor_heap, which should bring significant performance boost to Nvidia cards, once it’s properly implemented.
This update, among other things, adds support for VK_EXT_descriptor_heap, which should bring significant performance boost to Nvidia cards, once it’s properly implemented.
Has anyone been able to get HDR working in Kubuntu 25.10 without the system crashing entirely?
It currently works for me on Ubuntu with Gnome and current drivers, so it’s not (just) NVidia. I do notice HDR mode is slightly more dim on my screen though, so I turned it off. It’ll be nice to see improvements.
Have you tried moving to a newer kernel? It should be working with Nvidia latest and KDE latest (Mine is solid on CachyOS) so it could be a kernel bug for you. No real downside to installing a newer one; but depending on your setup there could be a few regressions that might force you back to stable.
So there are no real downsides except for potentially that it won’t work and will waste a whole bunch of time and you’ll have to revert.
Yep. No downsides.
That’s literally how any update on a computer ever will work. Real downsides worth mentioning would be like “you’ll be unbootable, you can’t rollback, it’ll update a bunch of other packages, it might delete user home”. Having to select an old entry in your grub config at boot because the new kernel doesn’t play nice with any number of custom peripherals or packages on your system is not what I would consider a serious downside and you’d have to do it if Kubuntu decided to roll a kernel update anyway. Do you uh, use linux?
KDE on endeavouros works with HDR for me (latest drivers). Ubuntu is usually a few months behind on updates, but I wouldn’t expect plasma 6 to crash every time when trying HDR. I hope you’re able to narrow down the cause, or have a magical update that fixes it.
It’s not just Plasma I think. I can’t even ctrl-alt-fkey into a terminal. The whole system freezes.
HDR improvements are coming in some later driver version.
https://forums.developer.nvidia.com/t/vulkan-extensions-needed-for-hdr-is-missing/334268/14?u=tda0626
No one should buy a product on a promise of future functionality. The answer is a clear “no” as of now.
I agree on that, but Nvidia GPU are by far the most common GPUs among gamers. Some of them might be excited to hear that their HDR woes are getting fixed at some point, possibly in near-ish future. Some people in that forum thread are saying that the HDR extensions are actually already included in the driver, even though the Nvidia guy said otherwise.
So the answer is shrug with a side of “thoughts and prayers!”