BTW: also, as I have an nvidia graphics card in that machine, one could think
something is wrong with the graphics drivers...
But I tried the nvidia drivers as recommended by the driver GUI tool as well as
nouveau. It "feels" like the nvidia drivers are even slightly worse.
On the Ubuntu live
I have an update on this and quite a bit of more information, even
though not very clear what it means and how to further go on fully
fixing it:
After some more usage i realized that the performance is still pretty
weak when using my desktop system for slightly more "real" work.
I kept getting
Hi Henning,
That is great news that "intel_iommu=off" on the kernel command line did
the trick.
You can follow this bug to get updates on when we will be disabling
IOMMU by default in the 5.15 kernel. It should be soon, the patches are
already submitted, and reviewed by the kernel team. The next
Hi Matthew,
Yes, that looks very good! have to dig a bit deeper and do some more
actual work, but at the first glance I can do the things that I
described above where impossible!
Thanks a lot!
I tried to build 5.17.7 with the 22.04 config and make olddefconfig
and then bindeb-pkg, but it took
Hi Henning,
Just a thought, could you try booting with IOMMU disabled?
Edit /etc/default/grub, and append "intel_iommu=off" to
GRUB_CMDLINE_LINUX_DEFAULT. Then save, and run "sudo update-grub" and
reboot.
Between 21.10 and 22.04 we enabled CONFIG_INTEL_IOMMU_DEFAULT_ON=y, and
it has caused all
