On Thu, 15 Aug 2019, Randy Dunlap <rdun...@infradead.org> wrote: > On 8/15/19 6:15 PM, Nathaniel Russell wrote: >> I would really like help with the kernel error with my uvcvideo driver. >> > > Hi again. > > What makes you think that the problem is related to the uvcvideo driver? > Does some previous kernel version work correctly? If so, what version(s)? > > > Does this warning message only happen when the uvcvideo driver is being > loaded? > Can you suppress loading of the uvcvideo driver to find out? > > Most of the problems/errors/warnings that I see are related to the i915 > driver: > > [ 13.032341] timed out waiting for port C ready: got 0x20, expected 0xe0 > [ 13.032872] WARNING: CPU: 1 PID: 239 at > drivers/gpu/drm/i915/intel_display.c:1597 vlv_wait_port_ready+0x99/0xe0 [i915] > [ 13.033632] RIP: 0010:vlv_wait_port_ready+0x99/0xe0 [i915] > > although there are a few uvcvideo warnings: > [ 13.039305] uvcvideo 1-5:1.0: Entity type for entity Extension 4 was not > initialized! > [ 13.039318] uvcvideo 1-5:1.0: Entity type for entity Extension 3 was not > initialized! > [ 13.039330] uvcvideo 1-5:1.0: Entity type for entity Processing 2 was not > initialized! > [ 13.039339] uvcvideo 1-5:1.0: Entity type for entity Camera 1 was not > initialized! > > > Laurent, do you see any uvc issues here? Any ideas/suggestions? > > > @intel-gfx: any ideas about what is going on here with the i915 driver?
Please file a bug over at , add drm.debug=14 module parameter, attach dmesg to the bug, all the way from boot to reproducing the issue. BR, Jani.  https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel > > > > Original message to lkml: > https://lore.kernel.org/lkml/CAONH+Jm-O6=dq+k2n5pntnmg2sq1kcvnfluwevh6w82opef...@mail.gmail.com/T/#u > > Previous message for 5.1.21 kernel: > https://lore.kernel.org/lkml/CAONH+JkTFujY9vEyNNuem+9rJ2qBKkf-PbKk9=DBSVEp6kW=y...@mail.gmail.com/ > > > thanks. -- Jani Nikula, Intel Open Source Graphics Center