Bug#893597: i965-va-driver: GPU hang on hardware encode

[Christian Schlüter]

Package: i965-va-driver
Version: 2.0.0+dfsg1-1
Severity: important

Dear Maintainer,

hardware video encoding to h264, hevc, vp8 and vp9 leads to a GPU hang
on KBL.
Mpeg2 encoding is possible.
Works with i965_drv_video.so built from git master.

   * What led up to the situation?
	I tried to encode a video with ffmpeg using vaapi.
   * What exactly did you do (or not do) that was effective (or
     ineffective)?
	ffmpeg -vaapi_device /dev/dri/renderD128 -i test-in.mkv \
	-c:v h264_vaapi test-out.mkv
   * What was the outcome of this action?
	From dmesg:
		[359448.285065] i915 0000:00:02.0: Resetting rcs0 after gpu hang
		[359457.277061] i915 0000:00:02.0: Resetting rcs0 after gpu hang
		[359466.269015] i915 0000:00:02.0: Resetting rcs0 after gpu hang
		[359475.261057] i915 0000:00:02.0: Resetting rcs0 after gpu hang
		[359480.285171] i915 0000:00:02.0: Resetting vcs0 after gpu hang
   * What outcome did you expect instead?
   		A hardware encoded video file.



-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.16.0-rc5-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages i965-va-driver depends on:
ii  libc6                          2.27-2
ii  libdrm-intel1                  2.4.90-1
ii  libdrm2                        2.4.90-1
ii  libva2 [libva-driver-abi-1.0]  2.1.0-1

i965-va-driver recommends no packages.

Versions of packages i965-va-driver suggests:
ii  i965-va-driver-shaders  2.0.0~pre3+ds1-2

-- no debconf information