Package: base
Severity: important

Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

   * What led up to the situation?
        I installed a fresh Debian 8 (Jessie) on my Lenovo ThinkPad X220 
tablet. All features  worked as expected and to a usable/reasonable extend, 
INCLUDING the build in video camera (web-camera above the LCD bezel).

To test it i used cheese app and camera initiated as expected, produced video 
at the correct resolution, LED next to the camera turned on... all was good. 

A week in to using the OS/Laptop camera related issues surfaced. 

Bug#1. If tabled's screen folded in to a tablet mode (twisted and folded to 
that back of the LCD panel faces the keyboard on Lenovo X220 tablet, camera is 
no longer detected by OS. 

Returning (twisting) the LCD panel back in to traditional laptop mode does not 
resolve the issue. Camera still not detected. 

Bug#2. As of right now, at the full OS restart, running Cheese app - camera 
turns on as expected, produces a video from the camera in the app fro ~40 
seconds, and camera shuts off, while LED next to the camera stays on, and the 
Cheese app displays a message: "No camera detected".
LED stays on for another 5-10 seconds and turns off. 
At that point running "dmesg" shows a lot of errors related to /dev/video1 :


[   11.673646] thinkpad_acpi: This ThinkPad has standard ACPI backlight 
brightness control, supported by the ACPI video driver
[   58.933027] Linux video capture interface: v2.00
[   58.940526] uvcvideo: Found UVC 1.00 device Integrated Camera (04f2:b217)
[   59.113458] usbcore: registered new interface driver uvcvideo
[   61.752806] uvcvideo: Found UVC 1.00 device Integrated Camera (04f2:b217)
[   75.679877] uvcvideo: Failed to resubmit video URB (-19).
[   77.970672] uvcvideo: Found UVC 1.00 device Integrated Camera (04f2:b217)
[   92.368755] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core v4l2_common videodev media bnep nfsd auth_rpcgss oid_registry 
nfs_acl nfs lockd fscache sunrpc nls_utf8 nls_cp437 vfat fat snd_hda_codec_hdmi 
ecb arc4 iTCO_wdt iTCO_vendor_support x86_pkg_temp_thermal intel_powerclamp 
intel_rapl iwldvm coretemp snd_hda_codec_conexant kvm_intel wacom mac80211 kvm 
snd_hda_codec_generic efi_pstore btusb bluetooth 6lowpan_iphc evdev joydev 
pcspkr serio_raw efivars i915 iwlwifi snd_hda_intel snd_hda_controller cfg80211 
snd_hda_codec lpc_ich thinkpad_acpi i2c_i801 mfd_core wmi snd_hwdep 
drm_kms_helper snd_pcm drm nvram snd_timer snd i2c_algo_bit rfkill soundcore 
tpm_tis battery ac i2c_core tpm mei_me video mei shpchp button processor fuse 
parport_pc ppdev lp parport autofs4 ext4 crc16
[   92.368942]  [<ffffffffa09141b3>] ? uvc_delete+0x13/0x160 [uvcvideo]
[   92.368970]  [<ffffffffa08ef42a>] ? v4l2_release+0x4a/0x80 [videodev]
[   92.381641] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core v4l2_common videodev media bnep nfsd auth_rpcgss oid_registry 
nfs_acl nfs lockd fscache sunrpc nls_utf8 nls_cp437 vfat fat snd_hda_codec_hdmi 
ecb arc4 iTCO_wdt iTCO_vendor_support x86_pkg_temp_thermal intel_powerclamp 
intel_rapl iwldvm coretemp snd_hda_codec_conexant kvm_intel wacom mac80211 kvm 
snd_hda_codec_generic efi_pstore btusb bluetooth 6lowpan_iphc evdev joydev 
pcspkr serio_raw efivars i915 iwlwifi snd_hda_intel snd_hda_controller cfg80211 
snd_hda_codec lpc_ich thinkpad_acpi i2c_i801 mfd_core wmi snd_hwdep 
drm_kms_helper snd_pcm drm nvram snd_timer snd i2c_algo_bit rfkill soundcore 
tpm_tis battery ac i2c_core tpm mei_me video mei shpchp button processor fuse 
parport_pc ppdev lp parport autofs4 ext4 crc16
[   92.381741]  [<ffffffffa09141b3>] ? uvc_delete+0x13/0x160 [uvcvideo]
[   92.381749]  [<ffffffffa08ef42a>] ? v4l2_release+0x4a/0x80 [videodev]
[   92.381783] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core v4l2_common videodev media bnep nfsd auth_rpcgss oid_registry 
nfs_acl nfs lockd fscache sunrpc nls_utf8 nls_cp437 vfat fat snd_hda_codec_hdmi 
ecb arc4 iTCO_wdt iTCO_vendor_support x86_pkg_temp_thermal intel_powerclamp 
intel_rapl iwldvm coretemp snd_hda_codec_conexant kvm_intel wacom mac80211 kvm 
snd_hda_codec_generic efi_pstore btusb bluetooth 6lowpan_iphc evdev joydev 
pcspkr serio_raw efivars i915 iwlwifi snd_hda_intel snd_hda_controller cfg80211 
snd_hda_codec lpc_ich thinkpad_acpi i2c_i801 mfd_core wmi snd_hwdep 
drm_kms_helper snd_pcm drm nvram snd_timer snd i2c_algo_bit rfkill soundcore 
tpm_tis battery ac i2c_core tpm mei_me video mei shpchp button processor fuse 
parport_pc ppdev lp parport autofs4 ext4 crc16
[   92.381833]  [<ffffffffa09141b3>] ? uvc_delete+0x13/0x160 [uvcvideo]
[   92.381838]  [<ffffffffa08ef42a>] ? v4l2_release+0x4a/0x80 [videodev]
[   92.381857] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core v4l2_common videodev media bnep nfsd auth_rpcgss oid_registry 
nfs_acl nfs lockd fscache sunrpc nls_utf8 nls_cp437 vfat fat snd_hda_codec_hdmi 
ecb arc4 iTCO_wdt iTCO_vendor_support x86_pkg_temp_thermal intel_powerclamp 
intel_rapl iwldvm coretemp snd_hda_codec_conexant kvm_intel wacom mac80211 kvm 
snd_hda_codec_generic efi_pstore btusb bluetooth 6lowpan_iphc evdev joydev 
pcspkr serio_raw efivars i915 iwlwifi snd_hda_intel snd_hda_controller cfg80211 
snd_hda_codec lpc_ich thinkpad_acpi i2c_i801 mfd_core wmi snd_hwdep 
drm_kms_helper snd_pcm drm nvram snd_timer snd i2c_algo_bit rfkill soundcore 
tpm_tis battery ac i2c_core tpm mei_me video mei shpchp button processor fuse 
parport_pc ppdev lp parport autofs4 ext4 crc16
[   92.381905]  [<ffffffffa09141b3>] ? uvc_delete+0x13/0x160 [uvcvideo]
[   92.381911]  [<ffffffffa08ef42a>] ? v4l2_release+0x4a/0x80 [videodev]
[   92.381978] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops 
videobuf2_core v4l2_common videodev media bnep nfsd auth_rpcgss oid_registry 
nfs_acl nfs lockd fscache sunrpc nls_utf8 nls_cp437 vfat fat snd_hda_codec_hdmi 
ecb arc4 iTCO_wdt iTCO_vendor_support x86_pkg_temp_thermal intel_powerclamp 
intel_rapl iwldvm coretemp snd_hda_codec_conexant kvm_intel wacom mac80211 kvm 
snd_



   * What exactly did you do (or not do) that was effective (or
     ineffective)?
        Quitting the Cheese app and starting in again did not resolve the 
issue. 
Logging out of the user account and logging back in did not resolve the issue. 

Full restart of the OS, brings back the camera but only for ~40 seconds when 
using cheese, and camera turns off again.

   * What was the outcome of this action?
Full restart of the OS, brings back the camera but only for ~40 seconds when 
using cheese, and camera turns off again.


   * What outcome did you expect instead?
Camera to stay on, take photos and videos. 


*** End of the template - remove these template lines ***


-- System Information:
Debian Release: 8.4
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

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