Comment 5 for bug 1730502

In addition to simply not getting any thumbnails, I saw very high CPU and RAM use by tumblerd after using Thunar to open a directory with lots of videos in it. Checking the journal, I also saw a bunch of messages saying "kernel: i915 0000:00:02.0: Resetting vcs0 after gpu hang". Uninstalling this package enabled thumbnail generation again, and I no longer see either of these other two issues.

Output from inxi -SCGx:
System: Host: mercury Kernel: 4.15.0-38-generic x86_64 bits: 64 gcc: 7.3.0
           Desktop: Xfce 4.12.3 (Gtk 2.24.31) Distro: Ubuntu 18.04.1 LTS
CPU: Dual core Intel Core i7-5600U (-MT-MCP-)
           arch: Broadwell rev.4 cache: 4096 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 10376
           clock speeds: max: 3200 MHz 1: 1167 MHz 2: 1213 MHz 3: 1591 MHz
           4: 1494 MHz
Graphics: Card: Intel HD Graphics 5500 bus-ID: 00:02.0
           Display Server: x11 (X.Org 1.19.6 )
           drivers: modesetting (unloaded: fbdev,vesa)
           Resolution: 1920x1080@60.05hz
           OpenGL: renderer: Mesa DRI Intel HD Graphics 5500 (Broadwell GT2)
           version: 4.5 Mesa 18.0.5 Direct Render: Yes