> But building a new kernel and switching to it without deeper experience and a fallback would be too hard for me.
No need to build a new kernel. There are binaries in the link that was posted above. You can grab some of those to try. Just note that you need to turn off secure boot if you have it enabled because they're not signed. This is an important debugging step as it helps to identify if it's already fixed in a newer kernel and it's a backport effort for a fix or if it's still an upstream issue. If it's still an upstream issue it should be reported to the developers of the driver. > pci bus timeout, check dma status Maybe it's an issue with the DMA implementation of the wireless driver. You can experiment with the IOMMMU disabled (amd_iommu=off) to see if that changes anything. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2077920 Title: [RTL8821CE] awful performance To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2077920/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
