Public bug reported:

at each boot I see the messages:
10:34:47 kernel: uvcvideo: Failed to query (GET_INFO) UVC control 4 on unit 2: 
-32 (exp. 1).
10:34:47 kernel: uvcvideo: Failed to query (GET_INFO) UVC control 4 on unit 1: 
-32 (exp. 1).
10:34:46 kernel: uvcvideo: Failed to query (GET_INFO) UVC control 2 on unit 1: 
-32 (exp. 1).

this happen on a partition running Ubuntu 18.10 kernel 4.18.0-7-generic
but not on the partition running Ubuntu 18.04 kernel 4.15.0-34 on same
hardware

The integrated webcam works fine and i don't have other webcam
connected.

corrado@corrado-HP-p6-cc-0904:~$ uname -a
Linux corrado-HP-p6-cc-0904 4.18.0-7-generic #8-Ubuntu SMP Tue Aug 28 18:24:42 
UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
corrado@corrado-HP-p6-cc-0904:~$ inxi -Fx
System:    Host: corrado-HP-p6-cc-0904 Kernel: 4.18.0-7-generic x86_64 bits: 64 
compiler: gcc v: 8.2.0 
           Desktop: Gnome 3.30.0 Distro: Ubuntu 18.10 (Cosmic Cuttlefish) 
Machine:   Type: Laptop System: Hewlett-Packard product: HP 250 G3 Notebook PC 
v: 0991100000000000000600087 
           serial: <root required> 
           Mobo: Hewlett-Packard model: 2211 v: 86.49 serial: <root required> 
UEFI: Insyde v: F.36 
           date: 12/18/2014 
Battery:   ID-1: BAT1 charge: 20.9 Wh condition: 20.9/20.9 Wh (100%) model: 
13-42 OA03031 status: Full 
CPU:       Topology: Dual Core model: Intel Core i5-4210U bits: 64 type: MT MCP 
arch: Haswell rev: 1 
           L2 cache: 3072 KiB 
           flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 
19155 
           Speed: 1024 MHz min/max: 800/2700 MHz Core speeds (MHz): 1: 1098 2: 
1098 3: 1097 4: 1101 
Graphics:  Device-1: Intel Haswell-ULT Integrated Graphics driver: i915 v: 
kernel bus ID: 00:02.0 
           Display: x11 server: X.Org 1.20.1 driver: i915 resolution: 
1366x768~60Hz 
           OpenGL: renderer: Mesa DRI Intel Haswell Mobile v: 4.5 Mesa 18.1.5 
direct render: Yes 
Audio:     Device-1: Intel Haswell-ULT HD Audio driver: snd_hda_intel v: kernel 
bus ID: 00:03.0 
           Device-2: Intel 8 Series HD Audio driver: snd_hda_intel v: kernel 
bus ID: 00:1b.0 
           Sound Server: ALSA v: k4.18.0-7-generic 
Network:   Device-1: Realtek RTL810xE PCI Express Fast Ethernet driver: r8169 
v: 2.3LK-NAPI port: 3000 
           bus ID: 08:00.0 
           IF: enp8s0 state: down mac: 5c:b9:01:06:ba:ce 
           Device-2: Ralink RT3290 Wireless 802.11n 1T/1R PCIe driver: 
rt2800pci v: 2.3.0 bus ID: 09:00.0 
           IF: wlp9s0f0 state: up mac: ac:d1:b8:82:03:5d 
Drives:    Local Storage: total: 465.76 GiB used: 16.78 GiB (3.6%) 
           ID-1: /dev/sda vendor: Seagate model: ST500LT012-1DG142 size: 465.76 
GiB 
Partition: ID-1: / size: 31.25 GiB used: 5.99 GiB (19.2%) fs: ext4 dev: 
/dev/sda6 
           ID-2: swap-1 size: 4.00 GiB used: 0 KiB (0.0%) fs: swap dev: 
/dev/sda2 
Sensors:   System Temperatures: cpu: 40.0 C mobo: 40.0 C 
           Fan Speeds (RPM): N/A 
Info:      Processes: 198 Uptime: 17m Memory: 3.79 GiB used: 1.02 GiB (26.9%) 
Init: systemd runlevel: 5 
           Compilers: gcc: N/A Shell: bash v: 4.4.19 inxi: 3.0.22 
corrado@corrado-HP-p6-cc-0904:~$

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Incomplete


** Tags: cosmic

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https://bugs.launchpad.net/bugs/1791908

Title:
  uvcvideo: Failed to query (GET_INFO) UVC control 4 on unit 2: -32
  (exp. 1).

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  at each boot I see the messages:
  10:34:47 kernel: uvcvideo: Failed to query (GET_INFO) UVC control 4 on unit 
2: -32 (exp. 1).
  10:34:47 kernel: uvcvideo: Failed to query (GET_INFO) UVC control 4 on unit 
1: -32 (exp. 1).
  10:34:46 kernel: uvcvideo: Failed to query (GET_INFO) UVC control 2 on unit 
1: -32 (exp. 1).

  this happen on a partition running Ubuntu 18.10 kernel
  4.18.0-7-generic but not on the partition running Ubuntu 18.04 kernel
  4.15.0-34 on same hardware

  The integrated webcam works fine and i don't have other webcam
  connected.

  corrado@corrado-HP-p6-cc-0904:~$ uname -a
  Linux corrado-HP-p6-cc-0904 4.18.0-7-generic #8-Ubuntu SMP Tue Aug 28 
18:24:42 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
  corrado@corrado-HP-p6-cc-0904:~$ inxi -Fx
  System:    Host: corrado-HP-p6-cc-0904 Kernel: 4.18.0-7-generic x86_64 bits: 
64 compiler: gcc v: 8.2.0 
             Desktop: Gnome 3.30.0 Distro: Ubuntu 18.10 (Cosmic Cuttlefish) 
  Machine:   Type: Laptop System: Hewlett-Packard product: HP 250 G3 Notebook 
PC v: 0991100000000000000600087 
             serial: <root required> 
             Mobo: Hewlett-Packard model: 2211 v: 86.49 serial: <root required> 
UEFI: Insyde v: F.36 
             date: 12/18/2014 
  Battery:   ID-1: BAT1 charge: 20.9 Wh condition: 20.9/20.9 Wh (100%) model: 
13-42 OA03031 status: Full 
  CPU:       Topology: Dual Core model: Intel Core i5-4210U bits: 64 type: MT 
MCP arch: Haswell rev: 1 
             L2 cache: 3072 KiB 
             flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 
19155 
             Speed: 1024 MHz min/max: 800/2700 MHz Core speeds (MHz): 1: 1098 
2: 1098 3: 1097 4: 1101 
  Graphics:  Device-1: Intel Haswell-ULT Integrated Graphics driver: i915 v: 
kernel bus ID: 00:02.0 
             Display: x11 server: X.Org 1.20.1 driver: i915 resolution: 
1366x768~60Hz 
             OpenGL: renderer: Mesa DRI Intel Haswell Mobile v: 4.5 Mesa 18.1.5 
direct render: Yes 
  Audio:     Device-1: Intel Haswell-ULT HD Audio driver: snd_hda_intel v: 
kernel bus ID: 00:03.0 
             Device-2: Intel 8 Series HD Audio driver: snd_hda_intel v: kernel 
bus ID: 00:1b.0 
             Sound Server: ALSA v: k4.18.0-7-generic 
  Network:   Device-1: Realtek RTL810xE PCI Express Fast Ethernet driver: r8169 
v: 2.3LK-NAPI port: 3000 
             bus ID: 08:00.0 
             IF: enp8s0 state: down mac: 5c:b9:01:06:ba:ce 
             Device-2: Ralink RT3290 Wireless 802.11n 1T/1R PCIe driver: 
rt2800pci v: 2.3.0 bus ID: 09:00.0 
             IF: wlp9s0f0 state: up mac: ac:d1:b8:82:03:5d 
  Drives:    Local Storage: total: 465.76 GiB used: 16.78 GiB (3.6%) 
             ID-1: /dev/sda vendor: Seagate model: ST500LT012-1DG142 size: 
465.76 GiB 
  Partition: ID-1: / size: 31.25 GiB used: 5.99 GiB (19.2%) fs: ext4 dev: 
/dev/sda6 
             ID-2: swap-1 size: 4.00 GiB used: 0 KiB (0.0%) fs: swap dev: 
/dev/sda2 
  Sensors:   System Temperatures: cpu: 40.0 C mobo: 40.0 C 
             Fan Speeds (RPM): N/A 
  Info:      Processes: 198 Uptime: 17m Memory: 3.79 GiB used: 1.02 GiB (26.9%) 
Init: systemd runlevel: 5 
             Compilers: gcc: N/A Shell: bash v: 4.4.19 inxi: 3.0.22 
  corrado@corrado-HP-p6-cc-0904:~$

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