Re: [Emc-users] uvcvideo vs v4l video
On 7/25/2014 9:31 PM, Jon Elson wrote: I have a pretty recent Dell Optiplex 980 desktop, and my scanner will not work at all on the rear ports. But, it works fine on the front ports. I don't see any difference in the lsusb listing between the two hubs, so I have no idea what is going on, but clearly the front and back ports are different on this machine, too! Are you certain the rear ports are enabled in BIOS setup? Many of the Optiplex line allow disabling various groups of USB ports rather than disabling the USB controller. --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com -- Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] uvcvideo vs v4l video
On 07/26/2014 03:26 AM, Gregg Eshelman wrote: Are you certain the rear ports are enabled in BIOS setup? Yes, the scanner enumerates and can be seen on the bus, but it locks up and can't complete a page scan. Keyboards, cameras, and other gear work fine on the rear ports. They seem to have the same internal hub chips on both sets of ports. Jon -- Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] uvcvideo vs v4l video
On 07/24/2014 09:06 PM, Gene Heskett wrote: the real problem that caused the usb disconnect? If the dmesg dump says something like: hub 1-0:1.0: port 2 disabled by hub (EMI?), re-enabling... Then I'll lay you long odds it really *is* EMI from your myriad steppers and suchlike. Spent quite a while figuring that out, but in my case it was an acrylic jacket: http://softsolder.com/2009/01/28/usb-disconnects-nobody-moves-nobody-gets-hurt/ Now, if that's not what dmesg says, I'd still suspect EMI... -- Ed softsolder.com -- Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] uvcvideo vs v4l video
On Friday 25 July 2014 07:50:25 Ed Nisley did opine And Gene did reply: On 07/24/2014 09:06 PM, Gene Heskett wrote: the real problem that caused the usb disconnect? If the dmesg dump says something like: hub 1-0:1.0: port 2 disabled by hub (EMI?), re-enabling... Its not saying exactly that Ed. Jul 24 20:30:04 shop kernel: [ 762.082869] usb 1-6: USB disconnect, address 3 Jul 24 20:30:04 shop kernel: [ 762.340067] usb 1-6: new high speed USB device using ehci_hcd and address 4 Jul 24 20:30:05 shop kernel: [ 762.800062] usb 4-2: new full speed USB device using uhci_hcd and address 3 Jul 24 20:30:05 shop kernel: [ 763.360812] usb 4-2: not running at top speed; connect to a high speed hub Jul 24 20:30:05 shop kernel: [ 763.450170] usb 4-2: configuration #1 chosen from 1 choice Jul 24 20:30:05 shop kernel: [ 763.459947] uvcvideo: Found UVC 1.00 device USB 2.0 PC Camera (058f:5608) Jul 24 20:30:06 shop kernel: [ 763.465178] input: USB 2.0 PC Camera as /devices/pci:00/:00:1d.2/usb4/4-2/4-2:1.0/input/input7 I will move it to a rear panel usb socket just for SG. Currently plugged into a front panel socket, which may or may not be clean enough for a high speed connection. The FP socket may not be as directly grounded as a rear panel socket could be. The front panel is of course a plastic casting so any ground is 8 of breakout cable away on the rear of the motherboard. The camera itself is grounded thru its alignment adjusting screws, to the frame of the machine. It also is grounded, but likely not well enough. All food for thought, and inspection with my 100mhz dual trace scope. I do recall having to put both a capacitor, and a small debounce (3 base_thread intervals IIRC) in the probe facility on it. Then I'll lay you long odds it really *is* EMI from your myriad steppers and suchlike. Spent quite a while figuring that out, but in my case it was an acrylic jacket: http://softsolder.com/2009/01/28/usb-disconnects-nobody-moves-nobody-ge ts-hurt/ Sounds like you need a heat leak into the basement, and a humidifier installed in the furnace. I have both in the house, but only electric heat in the shop and wall fans, for overtemps where all this is taking place even when its pouring it out of one of those famous boots. :) That high humidity failure points to EMI also. Now, if that's not what dmesg says, I'd still suspect EMI... Thanks Ed. Cheers, Gene Heskett -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS -- Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] uvcvideo vs v4l video
On Friday 25 July 2014 15:42:23 Gene Heskett did opine And Gene did reply: On Friday 25 July 2014 07:50:25 Ed Nisley did opine And Gene did reply: On 07/24/2014 09:06 PM, Gene Heskett wrote: the real problem that caused the usb disconnect? If the dmesg dump says something like: hub 1-0:1.0: port 2 disabled by hub (EMI?), re-enabling... Its not saying exactly that Ed. Jul 24 20:30:04 shop kernel: [ 762.082869] usb 1-6: USB disconnect, address 3 Jul 24 20:30:04 shop kernel: [ 762.340067] usb 1-6: new high speed USB device using ehci_hcd and address 4 Jul 24 20:30:05 shop kernel: [ 762.800062] usb 4-2: new full speed USB device using uhci_hcd and address 3 Jul 24 20:30:05 shop kernel: [ 763.360812] usb 4-2: not running at top speed; connect to a high speed hub Jul 24 20:30:05 shop kernel: [ 763.450170] usb 4-2: configuration #1 chosen from 1 choice Jul 24 20:30:05 shop kernel: [ 763.459947] uvcvideo: Found UVC 1.00 device USB 2.0 PC Camera (058f:5608) Jul 24 20:30:06 shop kernel: [ 763.465178] input: USB 2.0 PC Camera as /devices/pci:00/:00:1d.2/usb4/4-2/4-2:1.0/input/input7 I will move it to a rear panel usb socket just for SG. Currently plugged into a front panel socket, which may or may not be clean enough for a high speed connection. The FP socket may not be as directly grounded as a rear panel socket could be. The front panel is of course a plastic casting so any ground is 8 of breakout cable away on the rear of the motherboard. The camera itself is grounded thru its alignment adjusting screws, to the frame of the machine. It also is grounded, but likely not well enough. All food for thought, and inspection with my 100mhz dual trace scope. I do recall having to put both a capacitor, and a small debounce (3 base_thread intervals IIRC) in the probe facility on it. Then I'll lay you long odds it really *is* EMI from your myriad steppers and suchlike. Spent quite a while figuring that out, but in my case it was an acrylic jacket: http://softsolder.com/2009/01/28/usb-disconnects-nobody-moves-nobody- ge ts-hurt/ Sounds like you need a heat leak into the basement, and a humidifier installed in the furnace. I have both in the house, but only electric heat in the shop and wall fans, for overtemps where all this is taking place even when its pouring it out of one of those famous boots. :) That high humidity failure points to EMI also. Now, if that's not what dmesg says, I'd still suspect EMI... Thanks Ed. Cheers, Gene Heskett I looked at the noise, and other than about 1.3 volts P-P of 60 hz hum with perhaps 100 millivolts of stepper driver hash superimposed when it was completely unplugged, nothing of note. An lsusb suggested that the front panel plugs were usb 1.1 only, so I moved it to one of the rear panel plugs directly on the D-525-MW motherboard, On reboot it was correctly linked to /dev/video0, and it ran solidly for about 3 hours while I finished cutting out the brass makings for the new X screw cover on my lathe, not a single burp in that 3 hours. I think it wasn't 100% compatible with a usb-1.1 port. Cheers, Gene Heskett -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS -- Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] uvcvideo vs v4l video
I have seen front usb ports that use very poor wiring/board layout. (some that just don't work they are so badly designed) sam On 07/25/2014 08:31 PM, Gene Heskett wrote: On Friday 25 July 2014 15:42:23 Gene Heskett did opine And Gene did reply: On Friday 25 July 2014 07:50:25 Ed Nisley did opine And Gene did reply: On 07/24/2014 09:06 PM, Gene Heskett wrote: the real problem that caused the usb disconnect? If the dmesg dump says something like: hub 1-0:1.0: port 2 disabled by hub (EMI?), re-enabling... Its not saying exactly that Ed. Jul 24 20:30:04 shop kernel: [ 762.082869] usb 1-6: USB disconnect, address 3 Jul 24 20:30:04 shop kernel: [ 762.340067] usb 1-6: new high speed USB device using ehci_hcd and address 4 Jul 24 20:30:05 shop kernel: [ 762.800062] usb 4-2: new full speed USB device using uhci_hcd and address 3 Jul 24 20:30:05 shop kernel: [ 763.360812] usb 4-2: not running at top speed; connect to a high speed hub Jul 24 20:30:05 shop kernel: [ 763.450170] usb 4-2: configuration #1 chosen from 1 choice Jul 24 20:30:05 shop kernel: [ 763.459947] uvcvideo: Found UVC 1.00 device USB 2.0 PC Camera (058f:5608) Jul 24 20:30:06 shop kernel: [ 763.465178] input: USB 2.0 PC Camera as /devices/pci:00/:00:1d.2/usb4/4-2/4-2:1.0/input/input7 I will move it to a rear panel usb socket just for SG. Currently plugged into a front panel socket, which may or may not be clean enough for a high speed connection. The FP socket may not be as directly grounded as a rear panel socket could be. The front panel is of course a plastic casting so any ground is 8 of breakout cable away on the rear of the motherboard. The camera itself is grounded thru its alignment adjusting screws, to the frame of the machine. It also is grounded, but likely not well enough. All food for thought, and inspection with my 100mhz dual trace scope. I do recall having to put both a capacitor, and a small debounce (3 base_thread intervals IIRC) in the probe facility on it. Then I'll lay you long odds it really *is* EMI from your myriad steppers and suchlike. Spent quite a while figuring that out, but in my case it was an acrylic jacket: http://softsolder.com/2009/01/28/usb-disconnects-nobody-moves-nobody- ge ts-hurt/ Sounds like you need a heat leak into the basement, and a humidifier installed in the furnace. I have both in the house, but only electric heat in the shop and wall fans, for overtemps where all this is taking place even when its pouring it out of one of those famous boots. :) That high humidity failure points to EMI also. Now, if that's not what dmesg says, I'd still suspect EMI... Thanks Ed. Cheers, Gene Heskett I looked at the noise, and other than about 1.3 volts P-P of 60 hz hum with perhaps 100 millivolts of stepper driver hash superimposed when it was completely unplugged, nothing of note. An lsusb suggested that the front panel plugs were usb 1.1 only, so I moved it to one of the rear panel plugs directly on the D-525-MW motherboard, On reboot it was correctly linked to /dev/video0, and it ran solidly for about 3 hours while I finished cutting out the brass makings for the new X screw cover on my lathe, not a single burp in that 3 hours. I think it wasn't 100% compatible with a usb-1.1 port. Cheers, Gene Heskett -- Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] uvcvideo vs v4l video
Sam, re: front panel usb ports poor design i've seen frequent disconnects and reconnects, even re-enumerating ( i think ) changing ttyUSB0 to ttyUSB1 on the dongle i use to talk to machines. avoid any usb port that 'feels odd', 'feels loose' or where connector looks like it sticks out _not_ square i see the disconnect in dmesg tomp On 07/25/2014 10:09 PM, sam sokolik wrote: I have seen front usb ports that use very poor wiring/board layout. (some that just don't work they are so badly designed) sam -- Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] uvcvideo vs v4l video
On 07/25/2014 08:31 PM, Gene Heskett wrote: An lsusb suggested that the front panel plugs were usb 1.1 only, so I moved it to one of the rear panel plugs directly on the D-525-MW motherboard, On reboot it was correctly linked to /dev/video0, and it ran solidly for about 3 hours while I finished cutting out the brass makings for the new X screw cover on my lathe, not a single burp in that 3 hours. I think it wasn't 100% compatible with a usb-1.1 port. You really DON'T want to be running a camera on USB 1.1! That is only 12 mbits/second. Also, any gear that is USB 1.1 only has to be really old, and may be non-compliant in some way. I have a pretty recent Dell Optiplex 980 desktop, and my scanner will not work at all on the rear ports. But, it works fine on the front ports. I don't see any difference in the lsusb listing between the two hubs, so I have no idea what is going on, but clearly the front and back ports are different on this machine, too! Jon -- Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] uvcvideo vs v4l video
On Friday 25 July 2014 23:09:22 sam sokolik did opine And Gene did reply: I have seen front usb ports that use very poor wiring/board layout. (some that just don't work they are so badly designed) sam I won't argue a bit on that Sam. After my experience trying to make a wired usb mouse keyboard work on the front panel of the other of those same boxes, and having to move both to the rear to make them work, I tend to agree with that. Usb breakouts for the front panel must be crap. Oddly enough a wireless logitek plugged into the front panel did work, most of the time. Cheers, Gene Heskett -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS -- Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] uvcvideo vs v4l video
Greetings; My camera on the milling machine is having spastic spells. Dmesg says its disconnecting but I see no evidence of that as being a mechanical cable problem. None of the disconnect/reconnect sessions can be blamed on my moving the usb cable that hooks it up. Its the only video device in the system other than the i915 on the D-525MW mainboard. And when it comes back up, it comes back up as /dev/video1, not /dev/video0 which is I believe where it started. The camera is configured to use /dev/v41, and after the failure all the by-id and by- path links in /dev/v4l are links to /dev/video1. Camview can't switch as it is configured to use v4l2:0, and goes into about 10 lines a second of reporting the failure message. How can I make it (=camview) even mouthier so that it might spit out the real problem that caused the usb disconnect? Thanks. Cheers, Gene Heskett -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Genes Web page http://geneslinuxbox.net:6309/gene US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS -- Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
