[Bug 108103] Failed to initialize GPU and Screen corruption at the top of the screen.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108103

--- Comment #21 from Vasily Galkin <galkin-vv at ya.ru> ---
Created attachment 142841
  --> https://bugs.freedesktop.org/attachment.cgi?id=142841&action=edit
142788: j4105 with 4.20 - drm tip full dmesg from boot via journalctl

The problem reproduces on every boot. It always hangs while iommu is enabled;
Sometimes - with other kernel or after soft reboot - the error messages are a
bit different, but I'm not sure - I lost them after reboot.

Nothing changed after updating from 4.19 to more recent kernel - ubuntu's build
of drm-tip. The exact verison of new kernel is:

Linux version 4.20.0-994-lowlatency (kernel at gloin) (gcc version 8.2.0 (Ubuntu
8.2.0-12ubuntu1)) #201812142101 SMP PREEMPT Sat Dec 15 02:06:59 UTC 2018

https://kernel.ubuntu.com/~kernel-ppa/mainline/drm-tip/2018-12-15/

These binary packages represent builds of the mainline or stable Linux kernel
tree at the commit below:

  cod/tip/drm-tip/2018-12-15 (2abfab12278273a26679335d0c65980816c42206

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