在最近的 dist-upgrade 之后，其中一个 USB 设备 (Hauppauge WinTV PVR USB2) 无法完全连接。也就是说，之前它可以正常连接，但在更新 (4.4.0-89，然后是 4.4.0.-91) 之后，没有/dev该设备的条目。要解决这种情况，我不知道要查找什么或调试问题。
呈现lsusb设备
Bus 006 Device 002: ID 03f0:1027 Hewlett-Packard Virtual keyboard and mouse
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 2040:2400 Hauppauge WinTV PVR USB2 (Model 24019)
Bus 001 Device 002: ID 1e4e:0101 Cubeternet
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
并dmesg | grep pvrusb2返回
[ 6.219426] pvrusb2: Hardware description: WinTV PVR USB2 Model 24xxx
[ 6.225280] usbcore: registered new interface driver pvrusb2
[ 6.225284] pvrusb2: V4L in-tree version:Hauppauge WinTV-PVR-USB2 MPEG2 Encoder/Tuner
[ 6.225287] pvrusb2: Debug mask is 31 (0x1f)
[ 6.247323] pvrusb2: Binding ir_video to i2c address 0x18.
[ 6.259420] cx25840 4-0044: cx25843-24 found @ 0x88 (pvrusb2_a)
[ 6.265070] pvrusb2: Attached sub-driver cx25840
[ 6.279944] pvrusb2: Attached sub-driver tuner
[ 6.468295] wm8775 4-001b: chip found @ 0x36 (pvrusb2_a)
[ 6.471846] pvrusb2: Attached sub-driver wm8775
[ 6.504049] pvrusb2: Attached sub-driver tuner
[ 7.540361] Modules linked in: lirc_serial(CE+) lirc_dev rc_core ipmi_ssif tda9887 tda8290 snd_soc_wm8776 snd_soc_core snd_compress jfs ac97_bus snd_pcm_dmaengine snd_pcm gpio_ich snd_seq_midi ppdev snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer snd soundcore wm8775 coretemp tuner cx25840 kvm irqbypass pvrusb2 serio_raw tveeprom cx2341x uvcvideo input_leds videobuf2_vmalloc dvb_core videobuf2_memops videobuf2_v4l2 videobuf2_core v4l2_common videodev media hpilo lpc_ich parport_pc floppy(+) ipmi_si 8250_fintek ipmi_msghandler i3200_edac shpchp edac_core mac_hid nf_nat_pptp nf_nat_proto_gre nf_conntrack_pptp nf_conntrack_proto_gre nf_nat nf_conntrack lp parport autofs4 hid_generic amdkfd amd_iommu_v2 radeon i2c_algo_bit ttm psmouse drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops
[ 7.542936] CPU: 2 PID: 372 Comm: pvrusb2-context Tainted: G C E 4.4.0-91-generic #114-Ubuntu
[ 7.543903] [<ffffffffc04ad088>] pvr2_eeprom_analyze+0x68/0x1e0 [pvrusb2]
[ 7.543903] [<ffffffffc04b3fe6>] pvr2_hdw_initialize+0xae6/0xec0 [pvrusb2]
[ 7.543903] [<ffffffffc04ba4c0>] ? pvr2_context_destroy+0xd0/0xd0 [pvrusb2]
[ 7.543903] [<ffffffffc04ba55b>] pvr2_context_thread_func+0x9b/0x330 [pvrusb2]
uname -a返回
Linux xxxx 4.4.0-91-generic #114-Ubuntu SMP 2017 年 8 月 8 日星期二 11:56:56 UTC x86_64 x86_64 x86_64 GNU/Linux
@heynnema dkms status什么都不返回...没有一个字符