Let's keep this on the list. I'm sure I don't have Silver Bullet answers.
On Tue, Oct 18, 2022, 11:15 AM Malatesh <malates...@gmail.com> wrote: > Hi. > Thank you for the interest you have shown. > > > - both cameras work one at a time ? > [A]: No. I am using one by one and not at one time both cameras > - does order of plugin affect which one blanks ? > [A]: First plugged camera will give blank and second plugged will work > This certainly suggests two cameras are on or plugged in at the same time. that contradicts your first answer - are they both the same camera model ? > [A]: No one is logitech and another is microsoft > - can you borrow a 3rd camera ? > [A]: Third camera works > I think you need to retest and permute all combinations or at least some of them. I suspect your application doesn't know what to do with two cameras why don't you try another app and see if it works. Cheese is the one on my desktop > Actual Error: > When I click camera preview with two camera connected, one is giving error > some time with "xhci_configure_reset_endpoint:4543 Error to set dequeue > ptr for endpoint 3, 81, err 18, 0". > This is because "ep status is 0 and *Endpoint is disabled".* > > Full Log: > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011861> set halted 1 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011890> real interrupt > (status=0x00000008) > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011897> event[77] = 32 > (0x0000000000000000 0x0c000000 0x02038000) > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011901> trb 0x0 status c > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011904> slot=2 epno=3 > stream=0 remainder=0 status=12, td_event 0x0 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011907> stream_id=0 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011910> > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011940> trb halted 1, running > 0 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011943> > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011944> Ep(129) No:129 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011946> Ep ID(129to3):3 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011949> dev 2, ep address 81 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011952> xfer > 0xfffffe003198f148, 0 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011954> ep 81 is not started > yet > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011957> ------> epno:3, Oct > 18 16:35:42 WT544810D076E1 kernel: <3645.011861> set halted 1 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011890> real interrupt > (status=0x00000008) > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011897> event[77] = 32 > (0x0000000000000000 0x0c000000 0x02038000) > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011901> trb 0x0 status c > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011904> slot=2 epno=3 > stream=0 remainder=0 status=12, td_event 0x0 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011907> stream_id=0 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011910> > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011940> trb halted 1, running > 0 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011943> > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011944> Ep(129) No:129 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011946> Ep ID(129to3):3 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011949> dev 2, ep address 81 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011952> xfer > 0xfffffe003198f148, 0 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011954> ep 81 is not started > yet > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011957> ------> epno:3, > *epstatus:0* device:2, ep_address 81 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011960> ----> *Endpoint is > disabled* > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011962> > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011965> command[5] = 16 > (0x0000000009891001, 0x00000000, 0x02034000) > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.012003> real interrupt > (status=0x00000008) > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.012010> event[78] = 33 > (0x0000000100fffdd0 0x13000000 0x02008400) > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.012013> Received command event > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.012042> trb 13000000, 2008400 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.012046> src 16, > (0x0000000009891001, 0x00000000, 0x02034000) > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.012051> -----> Set dequeue > ptr for EP No:3, EP Addr:81, EP Status:0, EP Error:18 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.012057> [ERROR] - > xhci_configure_reset_endpoint:4543 Error to set dequeue ptr for endpoint > 3, 81, err 18, 0 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.012061> ---> kick_ep 1 called: > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.012064> endpoint is not > running 3, 81, 18 device:2, ep_address 81 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011960> ---->* Endpoint is > disabled* > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011962> > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.011965> command[5] = 16 > (0x0000000009891001, 0x00000000, 0x02034000) > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.012003> real interrupt > (status=0x00000008) > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.012010> event[78] = 33 > (0x0000000100fffdd0 0x13000000 0x02008400) > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.012013> Received command event > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.012042> trb 13000000, 2008400 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.012046> src 16, > (0x0000000009891001, 0x00000000, 0x02034000) > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.012051> -----> Set dequeue > ptr for EP No:3, EP Addr:81, EP Status:0, EP Error:18 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.012057> [ERROR] - > xhci_configure_reset_endpoint:4543 Error to set dequeue ptr for endpoint > 3, 81, err 18, 0 > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.012061> ---> kick_ep 1 called: > > Oct 18 16:35:42 WT544810D076E1 kernel: <3645.012064> endpoint is not > running 3, 81, 18 > > > > > > > Regards, > Malatesh > > > On Thu, Oct 13, 2022 at 8:45 PM <jim.cro...@gmail.com> wrote: > >> On Wed, Oct 12, 2022 at 11:21 AM Malatesh <malates...@gmail.com> wrote: >> > >> > Hi Team, >> > >> > Good Morning/Afternoon/Evening. >> > >> > I connect two usb webcameras and one mouse, one keyboard to xhci >> controller, which has 4 usb v3.x ports. >> > Here, keyboard and mouse works fine without any issue. >> > But out of two cameras, only one camera works( I mean when I click >> preview only one camera show and one camera show blank ) >> > >> >> lemme ask some obvious questions: >> - both cameras work one at a time ? >> - does order of plugin affect which one blanks ? >> - are they both the same camera model ? >> - can you borrow a 3rd camera ? >> >
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