Hi!
First post here, so please forgive and correct any formatting mistakes or breeches in etiquette.
So I might need to file a bug report, but I’m unsure and want to make sure I know what info to include. I use an Ubuntu Mate box to play media on my TV through an HDMI cable. It’s worked great besides occasional freezes, but on the newest kernel update (I think from 4.04.4.0-36-generic to 4.4.0.38-generic) the TV suddenly receives no signal. Rebooting with the previous kernel fixes the problem.
Here’s some hardware info (while booted on the working 4.04.4.0-36 kernel)
sudo lshw -c video:
*-display:0
description: VGA compatible controller
product: Mobile 4 Series Chipset Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 07
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:29 memory:fd800000-fdbfffff memory:d0000000-dfffffff ioport:cc00(size=8)
*-display:1 UNCLAIMED
description: Display controller
product: Mobile 4 Series Chipset Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2.1
bus info: pci@0000:00:02.1
version: 07
width: 64 bits
clock: 33MHz
capabilities: pm bus_master cap_list
configuration: latency=0
resources: memory:fdd00000-fddfffff
uname -a:
Linux daddy-U80A 4.4.0-36-generic #55-Ubuntu SMP Thu Aug 11 18:01:55 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux