Linux-Pollrate-Patch VS kernel-ark

mkdir ~/SourceCode; cd ~/SourceCode; sudo apt install git; git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git ; git clone https://github.com/KarsMulder/Linux-Pollrate-Patch ; cd linuxuname -rgit checkout v5.11git apply ../Linux-Pollrate-Patch/pollrate.patchmkdir -p ../builds/amd64sudo apt install libssl-dev kernel-package patch dwarves bison flex libelf-devcp /boot/config-$(uname -r) ../builds/amd64/.configmake O=../builds/amd64 olddefconfigpushd ../builds; wget https://iam.tj/projects/ubuntu/linux-deb-no-debug.patch ; popdpatch -p1 <../builds/linux-deb-no-debug.patchgit diffexport PKG_DEBUG=1scripts/config --file ../builds/amd64/.config --disable SYSTEM_TRUSTED_KEYSscripts/config --file ../builds/amd64/.config --disable CONFIG_DEBUG_INFO_BTFmake -j4 O=../builds/amd64 bindeb-pkg |& tee /tmp/kernel-build.logsudo dpkg -i ../builds/linux*5.16.0-rc1+*.deb

If degrading your entire system to USB2 speeds is unacceptable: I wrote a kernel patch that can override the polling rate under the xHCI driver, but never upstreamed it because of reasons. I haven't tested it since last year (because even I find it too much hassle to compile my own kernel to solve this problem) so I don't know if it still works, but I suppose you can try it if you're really desperate.

I think this is intended as more of a proof of concept than as a useful change, but apparently this driver is going to be enabled on Fedora rawhide soon.

https://github.com/torvalds/linux/blob/master/drivers/net/ph...

MR where they are working though a build system issue: https://gitlab.com/cki-project/kernel-ark/-/merge_requests/3...

EDIT: Actually, I tested this just now by setting module.sig_enforce=1 in the kernel cmdline and it doesn't work. It turns out Fedora/Ubuntu/etc ship this custom patch in the kernel that explicitly allows using platform (secure boot) keys for verifying kernel modules: https://gitlab.com/cki-project/kernel-ark/-/commit/07db43366d560153fd1d418cfebe2370fb20697e. The patch is not in the upstream kernel yet, so Arch doesn't have it.

kernel patched with simpledrm fix/workaround for nvidia (see: https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1788 )

kernel patched with futex2 kernel patched with fsync compatibility kernel patched with winesync kernel patched with cherry-picked zen patches kernel patched with OpenRGB kernel patched with AMD CPCC kernel patched to enable amdgpu for pre-polaris cards by default instead of radeon kernel patched with steam deck support kernel configured with ashmem, binder, and android support for Waydroid kernel patched with windows surface support kernel patched with simpledrm fix/workaround for nvidia (see: https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1788 ) QSG_RENDER_LOOP=”basic” set for nvidia cards — fixes nouveau Wayland freezes. The nvidia proprietary driver sets this anyway after installation. This fixes the issue of KDE Wayland often times freezing on first login before nvidia proprietary drivers are installed. mesa-git provided for AMD/Intel drivers instead of latest release, built and updated regularly (every few weeks to a month on average)

Do do indeed, but they also curate their own downstream patches for the kernel and system libs. Their kernel repo is here https://gitlab.com/cki-project/kernel-ark. You have to specifically opt in to vanilla mainline builds of the kernel via https://fedoraproject.org/wiki/Kernel_Vanilla_Repositories.