Created attachment 144681 [details]
gpu crash dump
# dmesg -T
[Sat Jun 29 10:24:11 2019] [drm] GPU HANG: ecode 8:0:0x708ee40b, in Xorg , reason: Hang on render ring, action: reset
[Sat Jun 29 10:24:11 2019] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
[Sat Jun 29 10:24:11 2019] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
[Sat Jun 29 10:24:11 2019] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
[Sat Jun 29 10:24:11 2019] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
[Sat Jun 29 10:24:11 2019] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[Sat Jun 29 10:24:11 2019] drm/i915: Resetting chip after gpu hang
[Sat Jun 29 10:24:22 2019] drm/i915: Resetting chip after gpu hang
# uname -a ; lsb_release -dr ; lspci -v -s 00:02.0
Linux zadel 4.9.0-9-amd64 #1 SMP Debian 4.9.168-1+deb9u3 (2019-06-16) x86_64 GNU/Linux
Description: Debian GNU/Linux 9.9 (stretch)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 5500 (rev 09) (prog-if 00 [VGA controller])
Subsystem: Lenovo HD Graphics 5500
Flags: bus master, fast devsel, latency 0, IRQ 47
Memory at e0000000 (64-bit, non-prefetchable) [size=16M]
Memory at c0000000 (64-bit, prefetchable) [size=512M]
I/O ports at 3000 [size=64]
[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities:  MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [a4] PCI Advanced Features
Kernel driver in use: i915
Kernel modules: i915
Please reproduce with a recent kernel, say 5.1, or even better with drm-tip [https://cgit.freedesktop.org/drm-tip] if you want to be in a position to test patches.
For what it's worth, I think we fixed this bug about 3 years ago.
Author: Chris Wilson <email@example.com>
Date: Wed Sep 21 14:51:08 2016 +0100
drm/i915/execlists: Reset RING registers upon resume