ダーバン。キーボードが正しく機能しない

前回ノートパソコンのキーボードに奇妙なバグがありました。

一部のキーは時々動作を停止します。最も一般的なのはキーですが、時には、、、、、その他のキーもshiftあります。しかし、彼らは完全に仕事を停止しません。代わりにプレッシャー効果の約70％を「失う」。キーを押し続けると、数秒後に応答が始まります。asdkl;

外部USBキーボードを試してみましたが、少しうまく機能しましたが、ほぼ同じでした。時々shift、キーが停止して動作するようにするには、数回押す必要があります。

キーボードを再起動して接続/取り外ししても役に立ちませんでした。

何ができるのか、どこで修正を開始する必要がありますか？

システム: Debian GNU/Linux 8(jessie)

ラップトップ：Dell Inspiron 15-5547

UPD

$uname -a

Linux mybox 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt25-2 (2016-04-08) x86_64 GNU/Linux

$猫/var/logs/kern.log

Apr 25 10:56:07 aschukarev kernel: [  541.163523] usb 1-1: new low-speed USB device number 3 using xhci_hcd
Apr 25 10:56:07 aschukarev kernel: [  541.352793] usb 1-1: New USB device found, idVendor=1c4f, idProduct=0002
Apr 25 10:56:07 aschukarev kernel: [  541.352800] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Apr 25 10:56:07 aschukarev kernel: [  541.352804] usb 1-1: Product: USB Keyboard
Apr 25 10:56:07 aschukarev kernel: [  541.352807] usb 1-1: Manufacturer: SIGMACHIP
Apr 25 10:56:07 aschukarev kernel: [  541.353035] usb 1-1: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes
Apr 25 10:56:07 aschukarev kernel: [  541.353042] usb 1-1: ep 0x82 - rounding interval to 64 microframes, ep desc says 80 microframes
Apr 25 10:56:07 aschukarev kernel: [  541.356152] input: SIGMACHIP USB Keyboard as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0/0003:1C4F:0002.0004/input/input19
Apr 25 10:56:07 aschukarev kernel: [  541.356376] hid-generic 0003:1C4F:0002.0004: input,hidraw3: USB HID v1.10 Keyboard [SIGMACHIP USB Keyboard] on usb-0000:00:14.0-1/input0
Apr 25 10:56:07 aschukarev kernel: [  541.359067] input: SIGMACHIP USB Keyboard as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.1/0003:1C4F:0002.0005/input/input20
Apr 25 10:56:07 aschukarev kernel: [  541.359323] hid-generic 0003:1C4F:0002.0005: input,hidraw4: USB HID v1.10 Device [SIGMACHIP USB Keyboard] on usb-0000:00:14.0-1/input1
Apr 25 11:04:01 aschukarev kernel: [ 1015.796519] cfg80211: Calling CRDA to update world regulatory domain
Apr 25 11:04:01 aschukarev kernel: [ 1015.799421] cfg80211: World regulatory domain updated:
Apr 25 11:04:01 aschukarev kernel: [ 1015.799425] cfg80211:  DFS Master region: unset
Apr 25 11:04:01 aschukarev kernel: [ 1015.799426] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
Apr 25 11:04:01 aschukarev kernel: [ 1015.799429] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
Apr 25 11:04:01 aschukarev kernel: [ 1015.799431] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
Apr 25 11:04:01 aschukarev kernel: [ 1015.799433] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
Apr 25 11:04:01 aschukarev kernel: [ 1015.799435] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
Apr 25 11:04:01 aschukarev kernel: [ 1015.799438] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
Apr 25 11:04:01 aschukarev kernel: [ 1015.799440] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
Apr 25 11:04:01 aschukarev kernel: [ 1015.799441] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
Apr 25 11:04:01 aschukarev kernel: [ 1015.799443] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
Apr 25 11:04:07 aschukarev kernel: [ 1021.787723] wlan0: authenticate with 4c:5e:0c:cc:2f:4f
Apr 25 11:04:07 aschukarev kernel: [ 1021.798007] wlan0: send auth to 4c:5e:0c:cc:2f:4f (try 1/3)
Apr 25 11:04:07 aschukarev kernel: [ 1021.902153] wlan0: send auth to 4c:5e:0c:cc:2f:4f (try 2/3)
Apr 25 11:04:07 aschukarev kernel: [ 1022.006224] wlan0: send auth to 4c:5e:0c:cc:2f:4f (try 3/3)
Apr 25 11:04:08 aschukarev kernel: [ 1022.110330] wlan0: authentication with 4c:5e:0c:cc:2f:4f timed out
Apr 25 11:04:09 aschukarev kernel: [ 1023.089460] wlan0: authenticate with 02:0c:42:8d:b3:92
Apr 25 11:04:09 aschukarev kernel: [ 1023.098803] wlan0: direct probe to 02:0c:42:8d:b3:92 (try 1/3)
Apr 25 11:04:09 aschukarev kernel: [ 1023.299023] wlan0: direct probe to 02:0c:42:8d:b3:92 (try 2/3)
Apr 25 11:04:09 aschukarev kernel: [ 1023.503174] wlan0: send auth to 02:0c:42:8d:b3:92 (try 3/3)
Apr 25 11:04:09 aschukarev kernel: [ 1023.615212] wlan0: authentication with 02:0c:42:8d:b3:92 timed out
Apr 25 11:04:10 aschukarev kernel: [ 1024.696674] wlan0: authenticate with 4c:5e:0c:cc:2f:4f
Apr 25 11:04:10 aschukarev kernel: [ 1024.707638] wlan0: send auth to 4c:5e:0c:cc:2f:4f (try 1/3)
Apr 25 11:04:10 aschukarev kernel: [ 1024.709527] wlan0: authenticated
Apr 25 11:04:10 aschukarev kernel: [ 1024.711912] wlan0: associate with 4c:5e:0c:cc:2f:4f (try 1/3)
Apr 25 11:04:10 aschukarev kernel: [ 1024.728029] wlan0: RX AssocResp from 4c:5e:0c:cc:2f:4f (capab=0x431 status=0 aid=3)
Apr 25 11:04:10 aschukarev kernel: [ 1024.728071] wlan0: associated

USBキーボードの先頭のメッセージ - 内蔵キーボードが遅れ始め、外部キーボードを接続しました。