[Bug 109206] Kernel 4.20 amdgpu fails to load firmware on Ryzen 2500U

[bugzilla-daemon at freedesktop.org]

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

--- Comment #59 from Jay Fitzpatrick <jayfitzpatrick at gmail.com> ---
(In reply to Jay Fitzpatrick from comment #56)
> (In reply to Ondrej Lang from comment #53)
> > According to the linux kernel 5.2 changelog
> > (https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2), the fix for
> > the DMCU firmware issue on raven1 platform is included in that release.
> > 
> > I went ahead and tested this and can confirm that I was able to boot without
> > a blank screen into my machine with kernel 5.2 without needing to use the
> > workaround.
> > 
> > I tested with:
> > 1.) re-installed latest linux-firmware package
> > 2.) installed kernel 5.2
> > 3.) re-generated the initramfs
> > 4.) booted into linux using kernel 5.2 and had no blank screen, dmesg output
> > is clean with no erros for amdgpu
> > 
> > Tested on:
> > HP HP ENVY x360 Convertible 15-bq1xx/83C6, BIOS F.21 04/29/2019
> > 
> > I guess if someone else can confirm my findings, maybe on different raven1
> > hardware, this ticket can be closed.
> 
> 
> Hi Ondrej
> 
> While I have not been able to test the 5.2 kernel on my Fedora system I have
> installed the 5.3 kernel from rawhide and am seeing the same results:
> 
> [root at envy ~]# cp /home/XXX/raven_dmcu.bin /usr/lib/firmware/amdgpu/
> [root at envy ~]# dracut -f --kver 5.3.0-0.rc0.git2.2.fc31.x86_64
> [root at envy ~]# reboot
> 
> Tested on HP ENVY x360 Convertible 15-bq1xx/83C6, BIOS F.20 12/25/2018
> Kernel version 5.3.0-0.rc0.git2.2.fc31.x86_64 
> 
> Installing rawhide kernel on Fedora without debug enabled:
> sudo dnf config-manager
> --add-repo=http://alt.fedoraproject.org/pub/alt/rawhide-kernel-nodebug/
> fedora-rawhide-kernel-nodebug.repo
> sudo yum upgrade

--Update--

While kernel versions 5.3.0-0.rc0.git2.2.fc31.x86_64 and
5.3.0-0.rc0.git2.4.fc31.x86_64 versions of the kernel seemed to be pretty
stable when it came to booting the system / touchscreen working etc, there was
a massive amount of video tearing (within Chrome / Konsole) within my KDE
session, enough to force me to roll back to 5.1.16-300.fc30.x86_64

Jay

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