...if you have a bad BIOS, and wish to boot with more than one connected display. https://gitlab.freedesktop.org/drm/intel/-/issues/4762 explains the issue, which has just been announced fixed. But, it appears the fix may only be landing in kernel 5.17rc3.
I tried to get the latest available kernel that is packaged by Debian people by reading on https://wiki.debian.org/HowToUpgradeKernel https://wiki.debian.org/DebianExperimental I put Package: linux-image Pin: release a=experimental Pin-Priority: 800 in /etc/apt/preferences.d/linux-kernel and deb http://deb.debian.org/debian experimental main in /etc/apt/sources.list, but apt-cache and aptitude don't seem to know that <http://ftp.us.debian.org/debian/pool/main/l/linux/linux-image-5.16.0-trunk-amd64-unsigned_5.16.4-1~exp1_amd64.deb> exists. (# aptitude search linux-image c linux-image-5.10.0-9-amd64 - c linux-image-5.14.0-0.bpo.2-amd - i A linux-image-5.15.0-2-amd64 - Linux 5.15 for 64-bit PCs (signed) i A linux-image-5.15.0-3-amd64 - Linux 5.15 for 64-bit PCs (signed) p linux-image-5.15.0-3-amd64-dbg - Debug symbols for linux-image-5.15.0-3- p linux-image-5.15.0-3-amd64-uns - Linux 5.15 for 64-bit PCs p linux-image-5.15.0-3-cloud-amd - Linux 5.15 for x86-64 cloud (signed) p linux-image-5.15.0-3-cloud-amd - Debug symbols for linux-image-5.15.0-3- p linux-image-5.15.0-3-cloud-amd - Linux 5.15 for x86-64 cloud p linux-image-5.15.0-3-rt-amd64 - Linux 5.15 for 64-bit PCs, PREEMPT_RT ( p linux-image-5.15.0-3-rt-amd64- - Debug symbols for linux-image-5.15.0-3- p linux-image-5.15.0-3-rt-amd64- - Linux 5.15 for 64-bit PCs, PREEMPT_RT i linux-image-amd64 - Linux for 64-bit PCs (meta-package) p linux-image-amd64-dbg - Debugging symbols for Linux amd64 confi p linux-image-amd64-signed-templ - Template for signed linux-image package p linux-image-cloud-amd64 - Linux for x86-64 cloud (meta-package) p linux-image-cloud-amd64-dbg - Debugging symbols for Linux cloud-amd64 v linux-image-generic - p linux-image-rt-amd64 - Linux for 64-bit PCs (meta-package) p linux-image-rt-amd64-dbg - Debugging symbols for Linux rt-amd64 co) which is what I found and installed using dpkg -i, resulting in this addition to the search list: i linux-image-5.16.0-trunk-amd64 - Linux 5.16 for 64-bit PCs # inxi -S System: Host: ab560 Kernel: 5.16.0-trunk-amd64 x86_64 bits: 64 Console: pty pts/0 Distro: Debian GNU/Linux bookworm/sid # What have I missed that prevents finding a recent kernel using package management instead of relying on a web browser and wget? -- Evolution as taught in public schools is, like religion, based on faith, not based on science. Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata