Bug 2119843

Created attachment 1906576 [details]
Log showing the problem, kernel 5.19.2-300, around line 856

1. Please describe the problem:

Kernel 5.19.2-300 throws errors in vc5_hdmi_reset.  This doesn't happen in kernel 5.19.1-300.  This can result in a totally black screen rather than a normal screen.


2. What is the Version-Release number of the kernel:

vmlinuz-5.19.2-300.fc37.aarch64


3. Did it work previously in Fedora? If so, what kernel version did the issue
   *first* appear?  Old kernels are available for download at
   https://koji.fedoraproject.org/koji/packageinfo?packageID=8 :

It worked in the immediately previous kernel.  I.e., vmlinuz-5.19.1-300.fc37.aarch64 is fine, but vmlinuz-5.19.2-300.fc37.aarch64
has the problem.


4. Can you reproduce this issue? If so, please provide the steps to reproduce
   the issue below:

100% reproducible.

Install kernel 5.19.2-300 and reboot the pi.  Then examine the boot logs with journalctl.


5. Does this problem occur with the latest Rawhide kernel? To install the
   Rawhide kernel, run ``sudo dnf install fedora-repos-rawhide`` followed by
   ``sudo dnf update --enablerepo=rawhide kernel``:

That installs vmlinuz-6.0.0-0.rc1.20220817git3cc40a443a04.14.fc38.aarch64 which has a similar problem.  It manifests in vc4_hdmi_write rather than in vc5_hdmi_reset.  I'll attach a log for all three kernels (5.19.1, 5.19.2, and 6.0.0-0.rc1.20220817git3cc40a443a04.14).


6. Are you running any modules that not shipped with directly Fedora's kernel?:

No external modules are installed.

7. Please attach the kernel logs. You can get the complete kernel log
   for a boot with ``journalctl --no-hostname -k > dmesg.txt``. If the
   issue occurred on a previous boot, use the journalctl ``-b`` flag.