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josephg
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Joined: 10 Jan 2016
Posts: 783
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 Posted: Fri Jun 16, 2017 8:44 am Post subject: |
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i'm not sure what i've done.. i don't think i did anything but power up, login, regular browsing, emails and some spotify. i didn't even sudo anything. but magically this has just appeared in my dmesg just now 
| Code: | [ 351.355169] [drm:0xf8917ffb] *ERROR* CPU pipe A FIFO underrun
[ 1700.212063] usb 1-2: new high-speed USB device number 2 using ehci-pci
[ 1700.370182] usb 1-2: New USB device found, idVendor=04f2, idProduct=b070
[ 1700.370189] usb 1-2: New USB device strings: Mfr=2, Product=1, SerialNumber=3
[ 1700.370194] usb 1-2: Product: CNF7051
[ 1700.370198] usb 1-2: Manufacturer: Chicony Electronics Co., Ltd.
[ 1700.370202] usb 1-2: SerialNumber: SN0001
[ 1700.502921] Linux video capture interface: v2.00
[ 1700.585393] uvcvideo: Found UVC 1.00 device CNF7051 (04f2:b070)
[ 1700.606821] usbcore: registered new interface driver uvcvideo
[ 1700.606824] USB Video Class driver (1.1.1)
[ 2280.040128] usb 1-2: USB disconnect, device number 2
[ 2288.272212] usb 1-2: new high-speed USB device number 3 using ehci-pci
[ 2288.430498] usb 1-2: New USB device found, idVendor=04f2, idProduct=b070
[ 2288.430505] usb 1-2: New USB device strings: Mfr=2, Product=1, SerialNumber=3
[ 2288.430509] usb 1-2: Product: CNF7051
[ 2288.430514] usb 1-2: Manufacturer: Chicony Electronics Co., Ltd.
[ 2288.430518] usb 1-2: SerialNumber: SN0001
[ 2288.434118] uvcvideo: Found UVC 1.00 device CNF7051 (04f2:b070)
[ 2291.792347] usb 1-2: USB disconnect, device number 3
[ 2643.366530] [drm:0xf8917ffb] *ERROR* CPU pipe A FIFO underrun |
strange that this device didn't come up at boot or soon thereafter 
Last edited by josephg on Fri Jun 16, 2017 9:22 am; edited 1 time in total |
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josephg
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Joined: 10 Jan 2016
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| Posted: Fri Jun 16, 2017 8:52 am Post subject: |
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guess too early to celebrate  i don't see this listed in lspci or lsusb.
| Code: | $ luvcview
luvcview 0.2.6
SDL information:
Video driver: x11
A window manager is available
Device information:
Device path: /dev/video0
ERROR opening V4L interface: No such file or directory |
hmm.. missing some v4l interface file or directory  is it /dev/video0?
| Code: | $ ls -lh /dev/vid*
ls: cannot access '/dev/vid*': No such file or directory |
no /dev/video0 |
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josephg
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Joined: 10 Jan 2016
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| Posted: Fri Jun 16, 2017 9:00 am Post subject: |
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| NeddySeagoon wrote: | Device nodes are not created until the devices are detected.
That's done by reading the vendor and device IDs from the devices.
You can use mknod to create the /dev/video0 character device, with major number 81, minor number 0 but it won't help.
There will be nothing behind it in the kernel. |
there seems to be something behind it now what if i create /dev/video0 manually? so i do.. but no joy
| Code: | $ ls -lh /dev/vid*
crw-rw-r-- 1 root video 81, 0 2017-06-16 09:55 /dev/video0
$ luvcview
luvcview 0.2.6
SDL information:
Video driver: x11
A window manager is available
Device information:
Device path: /dev/video0
ERROR opening V4L interface: No such device or address
$ mpv tv://
Playing: tv://
[tv] Selected driver: v4l2
[tv] name: Video 4 Linux 2 input
[tv] unable to open '/dev/video0': No such device or address
[tv] ioctl set mute failed: Bad file descriptor
[tv] 0 frames successfully processed, 0 frames dropped.
Failed to recognize file format.
Exiting... (Errors when loading file) |
and still no webcam devices found by skype.
i'm missing something.. |
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josephg
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| Posted: Fri Jun 16, 2017 9:12 am Post subject: |
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| Jaglover wrote: | | Device node is not created if the hardware is not found. Did you try to boot with SystemRescueCD? You need to figure out if this is the hardware or your Gentoo. |
| Code: | root@sysresccd /root % uname -a
Linux sysresccd 4.9.28-std501-amd64 #2 SMP Thu May 18 18:16:21 UTC 2017 x86_64 Intel(R) Core(TM)2 Duo CPU T5870 @ 2.00GHz GenuineIntel GNU/Linux
root@sysresccd /root % lsmod | grep uvc
root@sysresccd /root % modprobe uvcvideo
modprobe: FATAL: Module uvcvideo not found in directory /lib/modules/4.9.28-std501-amd64 |
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josephg
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| Posted: Fri Jun 16, 2017 9:25 am Post subject: |
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| testing further. i did a modprobe -r uvcvideo and then a modprobe uvcvideo. the chicony didn't appear in dmesg. seems i've lost it again. does it appear whenever it wants, rather than when i want? |
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josephg
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| Posted: Fri Jun 16, 2017 9:31 am Post subject: |
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some of my research showed folks talking about lid open/close/etc. so i tried it.. closed the laptop lid, and opened it after a while. there was chicony webcam in my dmesg again.. with some other stuff
| dmesg: | [ 78.620112] random: crng init done
[ 167.461491] Linux video capture interface: v2.00
[ 167.508592] usbcore: registered new interface driver uvcvideo
[ 167.508596] USB Video Class driver (1.1.1)
[ 215.008510] usbcore: deregistering interface driver uvcvideo
[ 220.073561] Linux video capture interface: v2.00
[ 220.101514] usbcore: registered new interface driver uvcvideo
[ 220.101519] USB Video Class driver (1.1.1)
[ 527.492056] usb 1-2: new high-speed USB device number 2 using ehci-pci
[ 527.649513] usb 1-2: New USB device found, idVendor=04f2, idProduct=b070
[ 527.649521] usb 1-2: New USB device strings: Mfr=2, Product=1, SerialNumber=3
[ 527.649525] usb 1-2: Product: CNF7051
[ 527.649530] usb 1-2: Manufacturer: Chicony Electronics Co., Ltd.
[ 527.649534] usb 1-2: SerialNumber: SN0001
[ 527.655898] uvcvideo: Found UVC 1.00 device CNF7051 (04f2:b070)
[ 535.192541] ------------[ cut here ]------------
[ 535.192549] WARNING: CPU: 0 PID: 2173 at drivers/gpu/drm/drm_irq.c:1385 0xf8909699
[ 535.192551] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev videobuf2_core nf_tables nfnetlink ctr ccm ext4 jbd2 mbcache arc4 ath9k ath9k_common i915 ath9k_hw mac80211 i2c_algo_bit drm_kms_helper sr_mod r852 sm_common nand ath syscopyarea firewire_ohci sdhci_pci nand_ecc sdhci nand_bch bch sysfillrect cfg80211 sysimgblt fb_sys_fops drm mmc_core nand_ids firewire_core mtd evdev snd_hda_codec_realtek i2c_i801 cdrom input_leds pcspkr psmouse lpc_ich i2c_smbus snd_hda_codec_generic led_class rfkill mfd_core thermal fan crc_itu_t intel_agp battery intel_gtt uhci_hcd snd_hda_intel snd_hda_codec button ac video ehci_pci backlight ehci_hcd snd_hwdep snd_hda_core usbcore acpi_cpufreq snd_pcm coretemp snd_timer snd hwmon shpchp soundcore agpgart usb_common [last unloaded: videobuf2_memops]
[ 535.192688] CPU: 0 PID: 2173 Comm: kworker/0:2 Tainted: G U 4.9.16-gentoo-jgv #85
[ 535.192691] Hardware name: TOSHIBA Satellite Pro A300/Portable PC, BIOS 2.20 12/07/2009
[ 535.192696] Workqueue: kacpi_notify 0xc1313154
[ 535.192701] 00000569 c12857b3 00000000 00000000 c103a0f2 c14f7fb4 00000000 0000087d
[ 535.192714] f82c2688 00000569 f8909699 f8909699 00000009 f43a2008 f43e0000 00070008
[ 535.192726] f88dff80 c103a1b3 00000009 00000000 00000000 f8909699 00000001 00000004
[ 535.192738] Call Trace:
[ 535.192744] [<c12857b3>] ? 0xc12857b3
[ 535.192747] [<c103a0f2>] ? 0xc103a0f2
[ 535.192752] [<f8909699>] ? 0xf8909699
[ 535.192755] [<f8909699>] ? 0xf8909699
[ 535.192757] [<f88dff80>] ? 0xf88dff80
[ 535.192760] [<c103a1b3>] ? 0xc103a1b3
[ 535.192762] [<f8909699>] ? 0xf8909699
[ 535.192766] [<f890d2de>] ? 0xf890d2de
[ 535.192769] [<f82ad50c>] ? 0xf82ad50c
[ 535.192772] [<f890d5e1>] ? 0xf890d5e1
[ 535.192774] [<c1313e03>] ? 0xc1313e03
[ 535.192778] [<f893ae2b>] ? 0xf893ae2b
[ 535.192780] [<c10535b3>] ? 0xc10535b3
[ 535.192784] [<c1053803>] ? 0xc1053803
[ 535.192787] [<c1053847>] ? 0xc1053847
[ 535.192789] [<f811e2c2>] ? 0xf811e2c2
[ 535.192793] [<f811e056>] ? 0xf811e056
[ 535.192795] [<c131661f>] ? 0xc131661f
[ 535.192798] [<c1325be4>] ? 0xc1325be4
[ 535.192800] [<c131315d>] ? 0xc131315d
[ 535.192803] [<c104d3c2>] ? 0xc104d3c2
[ 535.192806] [<c104ddc7>] ? 0xc104ddc7
[ 535.192809] [<c1072337>] ? 0xc1072337
[ 535.192811] [<c104dd90>] ? 0xc104dd90
[ 535.192814] [<c1052319>] ? 0xc1052319
[ 535.192817] [<c1052280>] ? 0xc1052280
[ 535.192819] [<c148f983>] ? 0xc148f983
[ 535.192823] ---[ end trace 424d7e96ed851f32 ]---
[ 535.192840] ------------[ cut here ]------------
[ 535.192844] WARNING: CPU: 0 PID: 2173 at drivers/gpu/drm/drm_irq.c:1385 0xf8909699
[ 535.192846] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev videobuf2_core nf_tables nfnetlink ctr ccm ext4 jbd2 mbcache arc4 ath9k ath9k_common i915 ath9k_hw mac80211 i2c_algo_bit drm_kms_helper sr_mod r852 sm_common nand ath syscopyarea firewire_ohci sdhci_pci nand_ecc sdhci nand_bch bch sysfillrect cfg80211 sysimgblt fb_sys_fops drm mmc_core nand_ids firewire_core mtd evdev snd_hda_codec_realtek i2c_i801 cdrom input_leds pcspkr psmouse lpc_ich i2c_smbus snd_hda_codec_generic led_class rfkill mfd_core thermal fan crc_itu_t intel_agp battery intel_gtt uhci_hcd snd_hda_intel snd_hda_codec button ac video ehci_pci backlight ehci_hcd snd_hwdep snd_hda_core usbcore acpi_cpufreq snd_pcm coretemp snd_timer snd hwmon shpchp soundcore agpgart usb_common [last unloaded: videobuf2_memops]
[ 535.192957] CPU: 0 PID: 2173 Comm: kworker/0:2 Tainted: G U W 4.9.16-gentoo-jgv #85
[ 535.192960] Hardware name: TOSHIBA Satellite Pro A300/Portable PC, BIOS 2.20 12/07/2009
[ 535.192963] Workqueue: kacpi_notify 0xc1313154
[ 535.192966] 00000569 c12857b3 00000000 00000000 c103a0f2 c14f7fb4 00000000 0000087d
[ 535.192979] f82c2688 00000569 f8909699 f8909699 00000009 f438f008 f43e0000 00071008
[ 535.192991] f88dff80 c103a1b3 00000009 00000000 00000000 f8909699 00000001 00000004
[ 535.193003] Call Trace:
[ 535.193006] [<c12857b3>] ? 0xc12857b3
[ 535.193009] [<c103a0f2>] ? 0xc103a0f2
[ 535.193012] [<f8909699>] ? 0xf8909699
[ 535.193014] [<f8909699>] ? 0xf8909699
[ 535.193017] [<f88dff80>] ? 0xf88dff80
[ 535.193020] [<c103a1b3>] ? 0xc103a1b3
[ 535.193023] [<f8909699>] ? 0xf8909699
[ 535.193027] [<f890d2de>] ? 0xf890d2de
[ 535.193029] [<f82ad50c>] ? 0xf82ad50c
[ 535.193032] [<f890d5e1>] ? 0xf890d5e1
[ 535.193035] [<c1313e03>] ? 0xc1313e03
[ 535.193038] [<f893ae2b>] ? 0xf893ae2b
[ 535.193041] [<c10535b3>] ? 0xc10535b3
[ 535.193044] [<c1053803>] ? 0xc1053803
[ 535.193046] [<c1053847>] ? 0xc1053847
[ 535.193049] [<f811e2c2>] ? 0xf811e2c2
[ 535.193052] [<f811e056>] ? 0xf811e056
[ 535.193055] [<c131661f>] ? 0xc131661f
[ 535.193057] [<c1325be4>] ? 0xc1325be4
[ 535.193060] [<c131315d>] ? 0xc131315d
[ 535.193062] [<c104d3c2>] ? 0xc104d3c2
[ 535.193066] [<c104ddc7>] ? 0xc104ddc7
[ 535.193068] [<c1072337>] ? 0xc1072337
[ 535.193071] [<c104dd90>] ? 0xc104dd90
[ 535.193073] [<c1052319>] ? 0xc1052319
[ 535.193077] [<c1052280>] ? 0xc1052280
[ 535.193079] [<c148f983>] ? 0xc148f983
[ 535.193106] ---[ end trace 424d7e96ed851f33 ]---
[ 535.729681] usb 1-2: USB disconnect, device number 2 |
is this a bug or something wrong with my kernel config? |
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josephg
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Joined: 10 Jan 2016
Posts: 783
Location: usually offline
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| Posted: Fri Jun 16, 2017 9:46 am Post subject: |
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testing further, and i seem to be getting somewhere  and i can repeat this each time.
if i close the laptop lid, a new usb device "UVC 1.00 device CNF7051 (04f2:b070)" appears.. and /dev/video0 is created.
this usb device disconnects and /dev/video0 disappears, when i reopen the laptop lid  no wonder i couldn't find it in lspci or lsusb or anywhere else.
| Code: | [ 37.604153] usb 1-2: new high-speed USB device number 2 using ehci-pci
[ 37.762274] usb 1-2: New USB device found, idVendor=04f2, idProduct=b070
[ 37.762282] usb 1-2: New USB device strings: Mfr=2, Product=1, SerialNumber=3
[ 37.762287] usb 1-2: Product: CNF7051
[ 37.762291] usb 1-2: Manufacturer: Chicony Electronics Co., Ltd.
[ 37.762294] usb 1-2: SerialNumber: SN0001
[ 38.180222] Linux video capture interface: v2.00
[ 38.225271] uvcvideo: Found UVC 1.00 device CNF7051 (04f2:b070)
[ 38.242882] usbcore: registered new interface driver uvcvideo
[ 38.242887] USB Video Class driver (1.1.1)
[ 52.501345] usb 1-2: USB disconnect, device number 2 |
| Code: | [ 66.806181] usb 1-2: new high-speed USB device number 3 using ehci-pci
[ 66.964430] usb 1-2: New USB device found, idVendor=04f2, idProduct=b070
[ 66.964438] usb 1-2: New USB device strings: Mfr=2, Product=1, SerialNumber=3
[ 66.964442] usb 1-2: Product: CNF7051
[ 66.964447] usb 1-2: Manufacturer: Chicony Electronics Co., Ltd.
[ 66.964451] usb 1-2: SerialNumber: SN0001
[ 66.972333] uvcvideo: Found UVC 1.00 device CNF7051 (04f2:b070)
[ 73.908351] usb 1-2: USB disconnect, device number 3 |
| Code: | [ 87.728214] usb 1-2: new high-speed USB device number 4 using ehci-pci
[ 87.886172] usb 1-2: New USB device found, idVendor=04f2, idProduct=b070
[ 87.886180] usb 1-2: New USB device strings: Mfr=2, Product=1, SerialNumber=3
[ 87.886184] usb 1-2: Product: CNF7051
[ 87.886188] usb 1-2: Manufacturer: Chicony Electronics Co., Ltd.
[ 87.886192] usb 1-2: SerialNumber: SN0001
[ 87.889910] uvcvideo: Found UVC 1.00 device CNF7051 (04f2:b070)
[ 95.473370] usb 1-2: USB disconnect, device number 4 |
| Code: | [ 218.829038] usb 1-2: new high-speed USB device number 5 using ehci-pci
[ 218.986212] usb 1-2: New USB device found, idVendor=04f2, idProduct=b070
[ 218.986219] usb 1-2: New USB device strings: Mfr=2, Product=1, SerialNumber=3
[ 218.986224] usb 1-2: Product: CNF7051
[ 218.986228] usb 1-2: Manufacturer: Chicony Electronics Co., Ltd.
[ 218.986232] usb 1-2: SerialNumber: SN0001
[ 218.990747] uvcvideo: Found UVC 1.00 device CNF7051 (04f2:b070)
[ 228.854470] usb 1-2: USB disconnect, device number 5 |
| Code: | [ 556.508086] usb 1-2: new high-speed USB device number 6 using ehci-pci
[ 556.665100] usb 1-2: New USB device found, idVendor=04f2, idProduct=b070
[ 556.665107] usb 1-2: New USB device strings: Mfr=2, Product=1, SerialNumber=3
[ 556.665112] usb 1-2: Product: CNF7051
[ 556.665117] usb 1-2: Manufacturer: Chicony Electronics Co., Ltd.
[ 556.665121] usb 1-2: SerialNumber: SN0001
[ 556.668891] uvcvideo: Found UVC 1.00 device CNF7051 (04f2:b070)
[ 559.393409] usb 1-2: USB disconnect, device number 6 |
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josephg
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Joined: 10 Jan 2016
Posts: 783
Location: usually offline
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| Posted: Fri Jun 16, 2017 10:05 am Post subject: |
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i captured this with lid closed. with lid open, there is nothing.
| Code: | $ lsusb -v -d 04f2:b070
Bus 001 Device 012: ID 04f2:b070 Chicony Electronics Co., Ltd Camera
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x04f2 Chicony Electronics Co., Ltd
idProduct 0xb070 Camera
bcdDevice 8.34
iManufacturer 2
iProduct 1
iSerial 3
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 523
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 98mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 2
bFunctionClass 14 Video
bFunctionSubClass 3 Video Interface Collection
bFunctionProtocol 0
iFunction 5
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 1 Video Control
bInterfaceProtocol 0
iInterface 5
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdUVC 1.00
wTotalLength 103
dwClockFrequency 15.000000MHz
bInCollection 1
baInterfaceNr( 0) 1
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 2
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 5
iTerminal 0
VideoControl Interface Descriptor:
bLength 26
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 4
guidExtensionCode {7033f028-1163-2e4a-ba2c-6890eb334016}
bNumControl 8
bNrPins 1
baSourceID( 0) 3
bControlSize 1
bmControls( 0) 0x0f
iExtension 0
VideoControl Interface Descriptor:
bLength 26
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 5
guidExtensionCode {3fae1228-d7bc-114e-a357-6f1edef7d61d}
bNumControl 8
bNrPins 1
baSourceID( 0) 4
bControlSize 1
bmControls( 0) 0xff
iExtension 0
VideoControl Interface Descriptor:
bLength 18
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Camera Sensor
bAssocTerminal 0
iTerminal 0
wObjectiveFocalLengthMin 0
wObjectiveFocalLengthMax 0
wOcularFocalLength 0
bControlSize 3
bmControls 0x00000000
VideoControl Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 5 (PROCESSING_UNIT)
Warning: Descriptor too short
bUnitID 3
bSourceID 1
wMaxMultiplier 0
bControlSize 2
bmControls 0x0000153f
Brightness
Contrast
Hue
Saturation
Sharpness
Gamma
Backlight Compensation
Power Line Frequency
White Balance Temperature, Auto
iProcessing 0
bmVideoStandards 0x 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 6
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
VideoStreaming Interface Descriptor:
bLength 14
bDescriptorType 36
bDescriptorSubtype 1 (INPUT_HEADER)
bNumFormats 1
wTotalLength 277
bEndPointAddress 129
bmInfo 0
bTerminalLink 2
bStillCaptureMethod 0
bTriggerSupport 1
bTriggerUsage 1
bControlSize 1
bmaControls( 0) 27
VideoStreaming Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
bFormatIndex 1
bNumFrameDescriptors 5
guidFormat {59555932-0000-1000-8000-00aa00389b71}
bBitsPerPixel 16
bDefaultFrameIndex 1
bAspectRatioX 0
bAspectRatioY 0
bmInterlaceFlags 0x00
Interlaced stream or variable: No
Fields per frame: 2 fields
Field 1 first: No
Field pattern: Field 1 only
bCopyProtect 0
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 1
bmCapabilities 0x00
Still image unsupported
wWidth 640
wHeight 480
dwMinBitRate 3072000
dwMaxBitRate 18432000
dwMaxVideoFrameBufferSize 614400
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 2000000
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 2
bmCapabilities 0x00
Still image unsupported
wWidth 352
wHeight 288
dwMinBitRate 1013760
dwMaxBitRate 6082560
dwMaxVideoFrameBufferSize 202752
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 2000000
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 3
bmCapabilities 0x00
Still image unsupported
wWidth 320
wHeight 240
dwMinBitRate 768000
dwMaxBitRate 4608000
dwMaxVideoFrameBufferSize 153600
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 2000000
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 4
bmCapabilities 0x00
Still image unsupported
wWidth 176
wHeight 144
dwMinBitRate 253440
dwMaxBitRate 1520640
dwMaxVideoFrameBufferSize 50688
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 2000000
VideoStreaming Interface Descriptor:
bLength 46
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 5
bmCapabilities 0x00
Still image unsupported
wWidth 160
wHeight 120
dwMinBitRate 192000
dwMaxBitRate 1152000
dwMaxVideoFrameBufferSize 38400
dwDefaultFrameInterval 333333
bFrameIntervalType 5
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 2000000
VideoStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 13 (COLORFORMAT)
bColorPrimaries 1 (BT.709,sRGB)
bTransferCharacteristics 1 (BT.709)
bMatrixCoefficients 4 (SMPTE 170M (BT.601))
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0080 1x 128 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0100 1x 256 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0320 1x 800 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 4
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0b20 2x 800 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 5
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x1320 3x 800 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 6
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x1400 3x 1024 bytes
bInterval 1 |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54588
Location: 56N 3W
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| Posted: Fri Jun 16, 2017 10:46 am Post subject: |
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josephg,
| Code: | $ lsusb -v -d 04f2:b070
Bus 001 Device 012: ID 04f2:b070 Chicony Electronics Co., Ltd Camera |
That's it! It will be a broken flexible printed circuit, where it gets flexed by the lid hinge.
There may be separate flexible printed circuits for the screen and other parts mounted in the lid, or they may be separate.
You might find that it works with the lid in some positions but not others.
When the lid is closed, the ends of the break touch.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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josephg
l33t
Joined: 10 Jan 2016
Posts: 783
Location: usually offline
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| Posted: Fri Jun 16, 2017 11:40 am Post subject: |
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guess i'll have to open up this laptop  hope i'll be able to put it all back together again with no spare bit left over |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54588
Location: 56N 3W
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| Posted: Fri Jun 16, 2017 1:51 pm Post subject: |
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josephg,
Be very careful how you handle the flexies. They have been well flexed over the last 9 years.
You don't want to damage the screen flexible PCB.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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josephg
l33t
Joined: 10 Jan 2016
Posts: 783
Location: usually offline
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| Posted: Mon Jun 19, 2017 8:54 am Post subject: |
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| thank you again NeddySeagoon. guess i could live without a webcam for a few more.. but it is nice to know gentoo works as it should, and issue is hardware problemo. i think i should not attempt this laptop disassembly, till i can manage a whole day free without distractions.. |
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Kernel & Hardware
