Short question:
How can I find out if a kernel upgrade has caused my hardware to stop working?
Longer version:
If I understand correctly:
- Ubuntu 16.04.1 used kernel version 4.4
- Ubuntu 16.04.2 uses kernel version 4.8
I have a hunch that the bluetooth and graphics on my Gigabyte Brix no longer work properly as a result of upgrading from kernel version 4.4 to 4.8. (To be clear, they worked fine with fresh install Ubuntu 16.04.1, they do not work properly with fresh install Ubuntu 16.04.2 or fully-upgraded 16.04.2.)
How can I find out if kernel version 4.4 supported a particular piece of hardware and 4.8 does not?
(In case it is relevant, the precise problems are: bluetooth won't discover some things and will connect but won't otherwise work with other things; graphics see here.)
Here are some details about the hardware:
rowand@rowand-desktop:~$ sudo lshw
[sudo] password for rowand:
rowand-desktop
description: Desktop Computer
product: GB-BACE-3160 (Default string)
vendor: GIGABYTE
version: 1.x
serial: Default string
width: 64 bits
capabilities: smbios-3.0 dmi-3.0 vsyscall32
configuration: boot=normal chassis=desktop family=Default string sku=Default string uuid=<removed>
*-core
description: Motherboard
product: MZBSWMP-00
vendor: GIGABYTE
physical id: 0
version: 1.x
serial: Default string
slot: Default string
*-cpu
description: CPU
product: Intel(R) Celeron(R) CPU J3160 @ 1.60GHz
vendor: Intel Corp.
physical id: 34
bus info: cpu@0
version: Intel(R) Celeron(R) CPU J3160 @ 1.60GHz
slot: SOCKET 0
size: 991MHz
capacity: 2400MHz
width: 64 bits
clock: 80MHz
capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes rdrand lahf_lm 3dnowprefetch epb tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms dtherm ida arat cpufreq
configuration: cores=4 enabledcores=4 threads=4
*-pci
description: Host bridge
product: Intel Corporation
vendor: Intel Corporation
physical id: 100
bus info: pci@0000:00:00.0
version: 35
width: 32 bits
clock: 33MHz
configuration: driver=iosf_mbi_pci
resources: irq:0
*-display
description: VGA compatible controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 35
width: 64 bits
clock: 33MHz
capabilities: pm msi vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:313 memory:80000000-80ffffff memory:90000000-9fffffff ioport:f000(size=64) memory:c0000-dffff
*-usb
description: USB controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 14
bus info: pci@0000:00:14.0
version: 35
width: 64 bits
clock: 33MHz
capabilities: pm msi xhci bus_master cap_list
configuration: driver=xhci_hcd latency=0
resources: irq:309 memory:81500000-8150ffff
*-usbhost:0
product: xHCI Host Controller
vendor: Linux 4.8.0-42-generic xhci-hcd
physical id: 0
bus info: usb@1
logical name: usb1
version: 4.08
capabilities: usb-2.00
configuration: driver=hub slots=7 speed=480Mbit/s
*-usb:1
description: Bluetooth wireless interface
vendor: Intel Corp.
physical id: 5
bus info: usb@1:5
version: 0.01
capabilities: bluetooth usb-2.00
configuration: driver=btusb maxpower=100mA speed=12Mbit/s
Please say if more information is required.
