https://bugs.freedesktop.org/show_bug.cgi?id=109206

--- Comment #27 from JerryD <jvdelisle@charter.net> ---
I am following 7 serious bug reports on kernel, redhat, freedesktop bugzillas.
This one is by far the most critical when one can not boot the machine. I am
happy to try to test things. I am not set up to compile a kernel, but I can try
release candidates. If anyone sees something that might work, please let me
know.

model name      : AMD Ryzen 5 2500U with Radeon Vega Mobile Gfx

Command line: BOOT_IMAGE=/vmlinuz-4.19.15-300.fc29.x86_64
root=/dev/mapper/fedora-root ro resume=/dev/mapper/fedora-swap
rd.lvm.lv=fedora/root rd.lvm.lv=fedora/swap rhgb quiet LANG=en_US.UTF-8
idle=nomwait iommu=pt processor.max_cstate=1

DMI: HP HP ENVY x360 Convertible 15-bq1xx/83C6, BIOS F.20 12/25/2018

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