Instalei o Ubuntu 15.04 (64 bits) em um notebook DELL XPS 13 (modelo 9343, BIOS A03). Eu uso um mouse bluetooth DELL, mas às vezes ele se comporta de forma irregular (lag, saltitante). O que poderia estar causando isso? Existe um fiz para isso? Eu estou anexando abaixo algumas informações no meu sistema. Obrigado.
cribari@darwin4:~$ uname -a; lspci -nnk | grep -iA2 net; lsusb; dmesg | grep -i bluetooth; dmesg | grep -i firmware; lsmod | grep bluetooth
Linux darwin4 3.19.0-17-generic #17-Ubuntu SMP Wed May 6 16:46:12 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
02:00.0 Network controller [0280]: Broadcom Corporation BCM4352 802.11ac Wireless Network Adapter [14e4:43b1] (rev 03)
Subsystem: Dell Device [1028:0019]
Kernel driver in use: wl
Bus 003 Device 002: ID 8087:8001 Intel Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0c45:670c Microdia
Bus 001 Device 003: ID 04f3:20d0 Elan Microelectronics Corp.
Bus 001 Device 002: ID 0a5c:216f Broadcom Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
[ 2.174367] Bluetooth: Core ver 2.20
[ 2.174669] Bluetooth: HCI device and connection manager initialized
[ 2.174792] Bluetooth: HCI socket layer initialized
[ 2.174795] Bluetooth: L2CAP socket layer initialized
[ 2.175449] Bluetooth: SCO socket layer initialized
[ 2.592936] Bluetooth: hci0: BCM: patching hci_ver=06 hci_rev=1624 lmp_ver=06 lmp_subver=220e
[ 3.203438] Bluetooth: hci0: BCM: firmware hci_ver=06 hci_rev=1624 lmp_ver=06 lmp_subver=220e
[ 3.542418] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 3.542421] Bluetooth: BNEP filters: protocol multicast
[ 3.542425] Bluetooth: BNEP socket layer initialized
[ 3.551641] Bluetooth: RFCOMM TTY layer initialized
[ 3.551649] Bluetooth: RFCOMM socket layer initialized
[ 3.551654] Bluetooth: RFCOMM ver 1.11
[ 26.569283] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
[ 26.569287] Bluetooth: HIDP socket layer initialized
[ 26.576971] input: Dell Travel Mouse WM524 as /devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.0/bluetooth/hci0/hci0:11/0005:046D:B00E.0003/input/input15
[ 26.577172] hid-generic 0005:046D:B00E.0003: input,hidraw2: BLUETOOTH HID v8.00 Mouse [Dell Travel Mouse WM524] on ac:d1:b8:c0:6f:5c
[ 72.448281] input: Dell Travel Mouse WM524 as /devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.0/bluetooth/hci0/hci0:12/0005:046D:B00E.0004/input/input16
[ 72.448526] hid-generic 0005:046D:B00E.0004: input,hidraw2: BLUETOOTH HID v8.00 Mouse [Dell Travel Mouse WM524] on ac:d1:b8:c0:6f:5c
[ 2994.842547] input: Dell Travel Mouse WM524 as /devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.0/bluetooth/hci0/hci0:13/0005:046D:B00E.0005/input/input17
[ 2994.842810] hid-generic 0005:046D:B00E.0005: input,hidraw2: BLUETOOTH HID v8.00 Mouse [Dell Travel Mouse WM524] on ac:d1:b8:c0:6f:5c
[ 3694.214037] Bluetooth: hci0: BCM: patching hci_ver=06 hci_rev=1000 lmp_ver=06 lmp_subver=220e
[ 3694.861578] Bluetooth: hci0: BCM: firmware hci_ver=06 hci_rev=1624 lmp_ver=06 lmp_subver=220e
[ 3811.777260] input: Dell Travel Mouse WM524 as /devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.0/bluetooth/hci0/hci0:11/0005:046D:B00E.0006/input/input20
[ 3811.777571] hid-generic 0005:046D:B00E.0006: input,hidraw2: BLUETOOTH HID v8.00 Mouse [Dell Travel Mouse WM524] on ac:d1:b8:c0:6f:5c
[ 5579.876192] Modules linked in: huawei_cdc_ncm cdc_wdm cdc_ncm option usb_wwan usbserial usbnet mii uas usb_storage hid_generic hidp nvram msr binfmt_misc rfcomm bnep nls_iso8859_1 intel_rapl iosf_mbi x86_pkg_temp_thermal dell_wmi sparse_keymap intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul dell_laptop dcdbas btusb crc32_pclmul bluetooth ghash_clmulni_intel hid_multitouch aesni_intel aes_x86_64 lrw uvcvideo gf128mul videobuf2_vmalloc glue_helper wl(POE) videobuf2_memops ablk_helper videobuf2_core cryptd v4l2_common videodev media joydev i915_bpo serio_raw i915 dell_led rtsx_pci_ms intel_ips memstick snd_hda_codec_realtek snd_soc_rt286 snd_hda_codec_generic cfg80211 snd_soc_core drm_kms_helper mei_me lpc_ich shpchp mei snd_compress snd_hda_intel snd_hda_controller drm snd_hda_codec i2c_algo_bit
[ 5579.876223] Workqueue: hci0 hci_power_on [bluetooth]
[ 5579.876261] [<ffffffffc0e09561>] hci_dev_do_open+0xe1/0xa90 [bluetooth]
[ 5579.876266] [<ffffffffc0e0a6f0>] hci_power_on+0x40/0x200 [bluetooth]
[ 5579.876284] bluetooth hci0: firmware: brcm/BCM20702A0-0a5c-216f.hcd will not be loaded
[ 5579.876286] Bluetooth: hci0: BCM: patch brcm/BCM20702A0-0a5c-216f.hcd not found
[ 9442.157757] Modules linked in: huawei_cdc_ncm cdc_wdm cdc_ncm option usb_wwan usbserial usbnet mii uas usb_storage hid_generic hidp nvram msr binfmt_misc rfcomm bnep nls_iso8859_1 intel_rapl iosf_mbi x86_pkg_temp_thermal dell_wmi sparse_keymap intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul dell_laptop dcdbas btusb crc32_pclmul bluetooth ghash_clmulni_intel hid_multitouch aesni_intel aes_x86_64 lrw uvcvideo gf128mul videobuf2_vmalloc glue_helper wl(POE) videobuf2_memops ablk_helper videobuf2_core cryptd v4l2_common videodev media joydev i915_bpo serio_raw i915 dell_led rtsx_pci_ms intel_ips memstick snd_hda_codec_realtek snd_soc_rt286 snd_hda_codec_generic cfg80211 snd_soc_core drm_kms_helper mei_me lpc_ich shpchp mei snd_compress snd_hda_intel snd_hda_controller drm snd_hda_codec i2c_algo_bit
[ 9442.157787] Workqueue: hci0 hci_power_on [bluetooth]
[ 9442.157810] [<ffffffffc0e09561>] hci_dev_do_open+0xe1/0xa90 [bluetooth]
[ 9442.157815] [<ffffffffc0e0a6f0>] hci_power_on+0x40/0x200 [bluetooth]
[ 9442.157844] bluetooth hci0: firmware: brcm/BCM20702A0-0a5c-216f.hcd will not be loaded
[ 9442.157846] Bluetooth: hci0: BCM: patch brcm/BCM20702A0-0a5c-216f.hcd not found
[ 9498.411674] input: Dell Travel Mouse WM524 as /devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.0/bluetooth/hci0/hci0:11/0005:046D:B00E.0007/input/input25
[ 9498.411880] hid-generic 0005:046D:B00E.0007: input,hidraw2: BLUETOOTH HID v8.00 Mouse [Dell Travel Mouse WM524] on ac:d1:b8:c0:6f:5c
[10589.318323] input: Dell Travel Mouse WM524 as /devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.0/bluetooth/hci0/hci0:11/0005:046D:B00E.0008/input/input26
[10589.318513] hid-generic 0005:046D:B00E.0008: input,hidraw2: BLUETOOTH HID v8.00 Mouse [Dell Travel Mouse WM524] on ac:d1:b8:c0:6f:5c
[10777.090455] input: Dell Travel Mouse WM524 as /devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.0/bluetooth/hci0/hci0:11/0005:046D:B00E.0009/input/input27
[10777.090668] hid-generic 0005:046D:B00E.0009: input,hidraw2: BLUETOOTH HID v8.00 Mouse [Dell Travel Mouse WM524] on ac:d1:b8:c0:6f:5c
[10813.977023] input: Dell Travel Mouse WM524 as /devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.0/bluetooth/hci0/hci0:11/0005:046D:B00E.000A/input/input28
[10813.977156] hid-generic 0005:046D:B00E.000A: input,hidraw2: BLUETOOTH HID v8.00 Mouse [Dell Travel Mouse WM524] on ac:d1:b8:c0:6f:5c
[10945.835463] Bluetooth: hci0: BCM: patching hci_ver=06 hci_rev=1000 lmp_ver=06 lmp_subver=220e
[10946.457962] Bluetooth: hci0: BCM: firmware hci_ver=06 hci_rev=1624 lmp_ver=06 lmp_subver=220e
[ 3.203438] Bluetooth: hci0: BCM: firmware hci_ver=06 hci_rev=1624 lmp_ver=06 lmp_subver=220e
[ 3694.861578] Bluetooth: hci0: BCM: firmware hci_ver=06 hci_rev=1624 lmp_ver=06 lmp_subver=220e
[ 5579.876160] WARNING: CPU: 2 PID: 6270 at /build/buildd/linux-3.19.0/drivers/base/firmware_class.c:1126 _request_firmware+0x72e/0xbd0()
[ 5579.876238] [<ffffffff815196ca>] ? _request_firmware+0x5a/0xbd0
[ 5579.876241] [<ffffffff81519d9e>] _request_firmware+0x72e/0xbd0
[ 5579.876243] [<ffffffff8151a275>] request_firmware+0x35/0x50
[ 5579.876284] bluetooth hci0: firmware: brcm/BCM20702A0-0a5c-216f.hcd will not be loaded
[ 9442.157726] WARNING: CPU: 3 PID: 9280 at /build/buildd/linux-3.19.0/drivers/base/firmware_class.c:1126 _request_firmware+0x72e/0xbd0()
[ 9442.157798] [<ffffffff815196ca>] ? _request_firmware+0x5a/0xbd0
[ 9442.157800] [<ffffffff81519d9e>] _request_firmware+0x72e/0xbd0
[ 9442.157801] [<ffffffff8151a275>] request_firmware+0x35/0x50
[ 9442.157844] bluetooth hci0: firmware: brcm/BCM20702A0-0a5c-216f.hcd will not be loaded
[10946.457962] Bluetooth: hci0: BCM: firmware hci_ver=06 hci_rev=1624 lmp_ver=06 lmp_subver=220e
bluetooth 491520 23 bnep,hidp,btusb,rfcomm
cribari@darwin4:~$