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Hi
Looking journalctl I can see this error every boot:
may 16 21:25:41 oscar_mobii kernel: [drm] RC6 disabled, disabling runtime PM support
may 16 21:25:41 oscar_mobii kernel: [drm] initialized overlay support
may 16 21:25:41 oscar_mobii kernel: [drm] Initialized i915 1.6.0 20151218 for 0000:00:02.0 on minor 0
may 16 21:25:41 oscar_mobii kernel: ------------[ cut here ]------------
may 16 21:25:41 oscar_mobii kernel: WARNING: CPU: 1 PID: 6 at drivers/gpu/drm/i915/intel_fbdev.c:412 intel_fb_initial_config+0
may 16 21:25:41 oscar_mobii kernel: WARN_ON(!encoder->crtc)
may 16 21:25:41 oscar_mobii kernel: Modules linked in:
may 16 21:25:41 oscar_mobii kernel: videobuf2_vmalloc snd_hwdep videobuf2_memops iTCO_wdt gpio_ich iTCO_vendor_support snd_pc
may 16 21:25:41 oscar_mobii kernel: CPU: 1 PID: 6 Comm: kworker/u4:0 Not tainted 4.5.1-1-ARCH #1
may 16 21:25:41 oscar_mobii kernel: Hardware name: Point of View mobii/mobii, BIOS 080015 06/23/2009
may 16 21:25:41 oscar_mobii kernel: Workqueue: events_unbound async_run_entry_fn
may 16 21:25:41 oscar_mobii kernel: c167d927 9063cf5d 00000286 f5903d08 c128858f f5903d48 f8ad1808 f5903d38
may 16 21:25:41 oscar_mobii kernel: c105a1b7 f8ac1e28 f5903d68 00000006 f8ad1808 0000019c f8a78e94 f8a78e94
may 16 21:25:41 oscar_mobii kernel: 00000000 00000001 00000001 f5903d54 c105a22e 00000009 f5903d48 f8ac1e28
may 16 21:25:41 oscar_mobii kernel: Call Trace:
may 16 21:25:41 oscar_mobii kernel: [<c128858f>] dump_stack+0x58/0x79
may 16 21:25:41 oscar_mobii kernel: [<c105a1b7>] warn_slowpath_common+0x87/0xc0
may 16 21:25:41 oscar_mobii kernel: [<f8a78e94>] ? intel_fb_initial_config+0x2e4/0x600 [i915]
may 16 21:25:41 oscar_mobii kernel: [<f8a78e94>] ? intel_fb_initial_config+0x2e4/0x600 [i915]
may 16 21:25:41 oscar_mobii kernel: [<c105a22e>] warn_slowpath_fmt+0x3e/0x60
may 16 21:25:41 oscar_mobii kernel: [<f8a78e94>] intel_fb_initial_config+0x2e4/0x600 [i915]
may 16 21:25:41 oscar_mobii kernel: [<f8a78bb0>] ? intel_crtc_fb_gamma_get+0x40/0x40 [i915]
may 16 21:25:41 oscar_mobii kernel: [<f86b776f>] drm_setup_crtcs+0x21f/0xa90 [drm_kms_helper]
may 16 21:25:41 oscar_mobii kernel: [<c107fa67>] ? ttwu_do_wakeup+0x17/0x150
may 16 21:25:41 oscar_mobii kernel: [<c108074b>] ? try_to_wake_up+0x15b/0x360
may 16 21:25:41 oscar_mobii kernel: [<c1080964>] ? wake_up_process+0x14/0x20
may 16 21:25:41 oscar_mobii kernel: [<f86b828c>] drm_fb_helper_initial_config+0xbc/0xe30 [drm_kms_helper]
may 16 21:25:41 oscar_mobii kernel: [<c10932d9>] ? pick_next_task_fair+0x419/0x4e0
may 16 21:25:41 oscar_mobii kernel: [<f8a79dc9>] intel_fbdev_initial_config+0x19/0x30 [i915]
may 16 21:25:41 oscar_mobii kernel: [<c10777ce>] async_run_entry_fn+0x4e/0x170
may 16 21:25:41 oscar_mobii kernel: [<c15072b1>] ? __schedule+0x3b1/0xa70
may 16 21:25:41 oscar_mobii kernel: [<c106fe7a>] process_one_work+0x11a/0x430
may 16 21:25:41 oscar_mobii kernel: [<c10701c7>] worker_thread+0x37/0x4a0
may 16 21:25:41 oscar_mobii kernel: [<c1070190>] ? process_one_work+0x430/0x430
may 16 21:25:41 oscar_mobii kernel: [<c10751d6>] kthread+0xa6/0xc0
may 16 21:25:41 oscar_mobii kernel: [<c150b0c9>] ret_from_kernel_thread+0x21/0x38
may 16 21:25:41 oscar_mobii kernel: [<c1075130>] ? kthread_worker_fn+0x150/0x150
may 16 21:25:41 oscar_mobii kernel: ---[ end trace 82654d82f1777583 ]---
may 16 21:25:41 oscar_mobii kernel: fbcon: inteldrmfb (fb0) is primary device
may 16 21:25:41 oscar_mobii kernel: ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
may 16 21:25:41 oscar_mobii kernel: ieee80211 phy0: hwaddr 001060e2f841, RTL8187SE + rtl8225-se
may 16 21:25:41 oscar_mobii kernel: ------------[ cut here ]------------
may 16 21:25:41 oscar_mobii kernel: WARNING: CPU: 1 PID: 15 at drivers/gpu/drm/i915/intel_fbdev.c:412 intel_fb_initial_config+
may 16 21:25:41 oscar_mobii kernel: WARN_ON(!encoder->crtc)
may 16 21:25:41 oscar_mobii kernel: Modules linked in: arc4 videobuf2_vmalloc snd_hwdep videobuf2_memops iTCO_wdt gpio_ich iTC
may 16 21:25:41 oscar_mobii kernel: CPU: 1 PID: 15 Comm: kworker/1:0 Tainted: G W 4.5.1-1-ARCH #1
may 16 21:25:41 oscar_mobii kernel: Hardware name: Point of View mobii/mobii, BIOS 080015 06/23/2009
may 16 21:25:41 oscar_mobii kernel: Workqueue: events output_poll_execute [drm_kms_helper]
may 16 21:25:41 oscar_mobii kernel: c167d927 51ea75e0 00000286 f591fd2c c128858f f591fd6c f8ad1808 f591fd5c
may 16 21:25:41 oscar_mobii kernel: c105a1b7 f8ac1e28 f591fd8c 0000000f f8ad1808 0000019c f8a78e94 f8a78e94
may 16 21:25:41 oscar_mobii kernel: 00000000 00000001 00000001 f591fd78 c105a22e 00000009 f591fd6c f8ac1e28
may 16 21:25:41 oscar_mobii kernel: Call Trace:
may 16 21:25:41 oscar_mobii kernel: [<c128858f>] dump_stack+0x58/0x79
may 16 21:25:41 oscar_mobii kernel: [<c105a1b7>] warn_slowpath_common+0x87/0xc0
may 16 21:25:41 oscar_mobii kernel: [<f8a78e94>] ? intel_fb_initial_config+0x2e4/0x600 [i915]
may 16 21:25:41 oscar_mobii kernel: [<f8a78e94>] ? intel_fb_initial_config+0x2e4/0x600 [i915]
may 16 21:25:41 oscar_mobii kernel: [<c105a22e>] warn_slowpath_fmt+0x3e/0x60
may 16 21:25:41 oscar_mobii kernel: [<f8a78e94>] intel_fb_initial_config+0x2e4/0x600 [i915]
may 16 21:25:41 oscar_mobii kernel: [<f8a78bb0>] ? intel_crtc_fb_gamma_get+0x40/0x40 [i915]
may 16 21:25:41 oscar_mobii kernel: [<f86b776f>] drm_setup_crtcs+0x21f/0xa90 [drm_kms_helper]
may 16 21:25:41 oscar_mobii kernel: [<c107fa67>] ? ttwu_do_wakeup+0x17/0x150
may 16 21:25:41 oscar_mobii kernel: [<c107c5a6>] ? ttwu_stat+0x76/0x100
may 16 21:25:41 oscar_mobii kernel: [<f8701acd>] ? drm_modeset_lock+0x2d/0xd0 [drm]
may 16 21:25:41 oscar_mobii kernel: [<f8701fa4>] ? drm_modeset_lock_all_ctx+0x94/0xb0 [drm]
may 16 21:25:41 oscar_mobii kernel: [<f86b809d>] drm_fb_helper_hotplug_event+0xbd/0x120 [drm_kms_helper]
may 16 21:25:41 oscar_mobii kernel: [<f8a79f1a>] intel_fbdev_output_poll_changed+0x1a/0x20 [i915]
may 16 21:25:41 oscar_mobii kernel: [<f86ab5f1>] drm_kms_helper_hotplug_event+0x21/0x30 [drm_kms_helper]
may 16 21:25:41 oscar_mobii kernel: [<f86ab7e8>] output_poll_execute+0x188/0x1c0 [drm_kms_helper]
may 16 21:25:41 oscar_mobii kernel: [<c106fe7a>] process_one_work+0x11a/0x430
may 16 21:25:41 oscar_mobii kernel: [<c10701c7>] worker_thread+0x37/0x4a0
may 16 21:25:41 oscar_mobii kernel: [<c1070190>] ? process_one_work+0x430/0x430
may 16 21:25:41 oscar_mobii kernel: [<c10751d6>] kthread+0xa6/0xc0
may 16 21:25:41 oscar_mobii kernel: [<c150b0c9>] ret_from_kernel_thread+0x21/0x38
may 16 21:25:41 oscar_mobii kernel: [<c1075130>] ? kthread_worker_fn+0x150/0x150
may 16 21:25:41 oscar_mobii kernel: ---[ end trace 82654d82f1777584 ]---
may 16 21:25:41 oscar_mobii kernel: ------------[ cut here ]------------
may 16 21:25:41 oscar_mobii kernel: WARNING: CPU: 1 PID: 15 at drivers/gpu/drm/drm_atomic_helper.c:715 drm_atomic_helper_updat
may 16 21:25:41 oscar_mobii kernel: Modules linked in: arc4 videobuf2_vmalloc snd_hwdep videobuf2_memops iTCO_wdt gpio_ich iTC
may 16 21:25:41 oscar_mobii kernel: CPU: 1 PID: 15 Comm: kworker/1:0 Tainted: G W 4.5.1-1-ARCH #1
may 16 21:25:41 oscar_mobii kernel: Hardware name: Point of View mobii/mobii, BIOS 080015 06/23/2009
may 16 21:25:41 oscar_mobii kernel: Workqueue: events output_poll_execute [drm_kms_helper]
may 16 21:25:41 oscar_mobii kernel: c167d927 51ea75e0 00000286 f591fd00 c128858f 00000000 f86bb6bc f591fd30
may 16 21:25:41 oscar_mobii kernel: c105a1b7 c15e2d90 00000001 0000000f f86bb6bc 000002cb f86b343a f86b343a
may 16 21:25:41 oscar_mobii kernel: f5b67c00 00000000 f39c5200 f591fd40 c105a2c2 00000009 00000000 f591fd68
may 16 21:25:41 oscar_mobii kernel: Call Trace:
may 16 21:25:41 oscar_mobii kernel: [<c128858f>] dump_stack+0x58/0x79
may 16 21:25:41 oscar_mobii kernel: [<c105a1b7>] warn_slowpath_common+0x87/0xc0
may 16 21:25:41 oscar_mobii kernel: [<f86b343a>] ? drm_atomic_helper_update_legacy_modeset_state+0x26a/0x280 [drm_kms_helper]
may 16 21:25:41 oscar_mobii kernel: [<f86b343a>] ? drm_atomic_helper_update_legacy_modeset_state+0x26a/0x280 [drm_kms_helper]
may 16 21:25:41 oscar_mobii kernel: [<c105a2c2>] warn_slowpath_null+0x22/0x30
may 16 21:25:41 oscar_mobii kernel: [<f86b343a>] drm_atomic_helper_update_legacy_modeset_state+0x26a/0x280 [drm_kms_helper]
may 16 21:25:41 oscar_mobii kernel: [<f8a62794>] intel_atomic_commit+0xed4/0x16e0 [i915]
may 16 21:25:41 oscar_mobii kernel: [<f8a63f0e>] ? intel_atomic_check+0x3de/0x1110 [i915]
may 16 21:25:41 oscar_mobii kernel: [<f8a63b30>] ? intel_link_compute_m_n+0x50/0x50 [i915]
may 16 21:25:41 oscar_mobii kernel: [<f8702ccf>] ? drm_atomic_check_only+0x19f/0x690 [drm]
may 16 21:25:41 oscar_mobii kernel: [<f8702558>] ? drm_atomic_set_crtc_for_connector+0x48/0xd0 [drm]
may 16 21:25:41 oscar_mobii kernel: [<f87031f2>] drm_atomic_commit+0x32/0x60 [drm]
may 16 21:25:41 oscar_mobii kernel: [<f86b5f53>] restore_fbdev_mode+0x253/0x290 [drm_kms_helper]
may 16 21:25:41 oscar_mobii kernel: [<f8701fa4>] ? drm_modeset_lock_all_ctx+0x94/0xb0 [drm]
may 16 21:25:41 oscar_mobii kernel: [<f86b8127>] drm_fb_helper_restore_fbdev_mode_unlocked+0x27/0x70 [drm_kms_helper]
may 16 21:25:41 oscar_mobii kernel: [<f86b819d>] drm_fb_helper_set_par+0x2d/0x60 [drm_kms_helper]
may 16 21:25:41 oscar_mobii kernel: [<f86b80ac>] drm_fb_helper_hotplug_event+0xcc/0x120 [drm_kms_helper]
may 16 21:25:41 oscar_mobii kernel: [<f8a79f1a>] intel_fbdev_output_poll_changed+0x1a/0x20 [i915]
may 16 21:25:41 oscar_mobii kernel: [<f86ab5f1>] drm_kms_helper_hotplug_event+0x21/0x30 [drm_kms_helper]
may 16 21:25:41 oscar_mobii kernel: [<f86ab7e8>] output_poll_execute+0x188/0x1c0 [drm_kms_helper]
may 16 21:25:41 oscar_mobii kernel: [<c106fe7a>] process_one_work+0x11a/0x430
may 16 21:25:41 oscar_mobii kernel: [<c10701c7>] worker_thread+0x37/0x4a0
may 16 21:25:41 oscar_mobii kernel: [<c1070190>] ? process_one_work+0x430/0x430
may 16 21:25:41 oscar_mobii kernel: [<c10751d6>] kthread+0xa6/0xc0
may 16 21:25:41 oscar_mobii kernel: [<c150b0c9>] ret_from_kernel_thread+0x21/0x38
may 16 21:25:41 oscar_mobii kernel: [<c1075130>] ? kthread_worker_fn+0x150/0x150
may 16 21:25:41 oscar_mobii kernel: ---[ end trace 82654d82f1777585 ]---
may 16 21:25:41 oscar_mobii systemd[1]: Started Load/Save RF Kill Switch Status.
may 16 21:25:41 oscar_mobii kernel: uvcvideo: Found UVC 1.00 device Venus USB2.0 Camera (0ac8:3450)
may 16 21:25:41 oscar_mobii kernel: uvcvideo 1-7:1.0: Entity type for entity Processing 2 was not initialized!
may 16 21:25:41 oscar_mobii kernel: uvcvideo 1-7:1.0: Entity type for entity Camera 1 was not initialized!
may 16 21:25:41 oscar_mobii kernel: uvcvideo 1-7:1.0: Entity type for entity Extension 4 was not initialized!But the video works. Any idea?
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