hi, This thing (2040:c000) works until I unplug it, whereupon (3.4.0 kernel from Ubuntu kernel team, 3.2 kernel is much the same; a 3.5 snapshot failed to recognise the device): Jun 20 13:48:04 kip kernel: [60935.264194] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.268310] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.272439] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.276578] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.280661] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.284782] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.288896] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.293016] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.297136] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.301251] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.305375] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.309488] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.313606] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.317721] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.321840] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.325959] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.330077] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.334197] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.338315] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.342430] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.346552] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.350666] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.354784] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.358907] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.363020] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.367139] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.371256] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.375373] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.379491] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.383609] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.387727] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.391828] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.395963] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.400080] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.404201] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.408317] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.412438] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.416555] smsusb_onresponse: line: 118: error, urb status -71, 0 bytes Jun 20 13:48:04 kip kernel: [60935.416686] usb 2-1.3: USB disconnect, device number 3 Jun 20 13:48:04 kip kernel: [60935.416927] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes Jun 20 13:48:04 kip kernel: [60935.416932] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes Jun 20 13:48:04 kip kernel: [60935.416937] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes Jun 20 13:48:04 kip kernel: [60935.416941] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes Jun 20 13:48:04 kip kernel: [60935.416945] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes Jun 20 13:48:04 kip kernel: [60935.416950] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes Jun 20 13:48:04 kip kernel: [60935.416954] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes Jun 20 13:48:04 kip kernel: [60935.416958] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes Jun 20 13:48:04 kip kernel: [60935.416962] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes Jun 20 13:48:04 kip kernel: [60935.416967] smsusb_onresponse: line: 72: error, urb status -108 (-ESHUTDOWN), 0 bytes Jun 20 13:48:05 kip kernel: [60935.437903] BUG: unable to handle kernel NULL pointer dereference at 0000000000000050 Jun 20 13:48:05 kip kernel: [60935.439682] IP: [<ffffffffa069a5b7>] show_protocols+0xf7/0x110 [rc_core] Jun 20 13:48:05 kip kernel: [60935.441354] PGD 12fffe067 PUD 12dc1a067 PMD 0 Jun 20 13:48:05 kip kernel: [60935.443000] Oops: 0000 [#1] SMP Jun 20 13:48:05 kip kernel: [60935.444621] CPU 0 Jun 20 13:48:05 kip kernel: [60935.444638] Modules linked in: ir_lirc_codec lirc_dev ir_mce_kbd_decoder ir_sanyo_decoder ir_sony_decoder ir_jvc_decoder ir_rc6_decoder ir_rc5_decoder smsdvb dvb_core ir_nec_decoder rc_hauppauge smsusb smsmdtv rc_core btrfs zlib_deflate libcrc32c ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs reiserfs ext2 parport_pc ppdev binfmt_misc dm_crypt snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_intel uvcvideo snd_hda_codec videobuf2_core snd_hwdep snd_pcm videodev videobuf2_vmalloc videobuf2_memops snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd arc4 joydev hp_accel iwlwifi psmouse tpm_infineon mei(C) coretemp lis3lv02d soundcore mac80211 cfg80211 intel_ips tpm_tis serio_raw snd_page_alloc microcode mac_hid input_polldev hp_wmi sparse_keymap lp parport firewire_ohci firewire_core sdhci_pci crc_itu_t sdhci i915 wmi drm_kms_helper drm e1000e i2c_algo_bit video Jun 20 13:48:05 kip kernel: [60935.457637] Jun 20 13:48:05 kip kernel: [60935.459630] Pid: 4514, comm: cat Tainted: G C 3.4.0-030400-generic #201205210521 Hewlett-Packard HP ProBook 6450b/146D Jun 20 13:48:05 kip kernel: [60935.461720] RIP: 0010:[<ffffffffa069a5b7>] [<ffffffffa069a5b7>] show_protocols+0xf7/0x110 [rc_core] Jun 20 13:48:05 kip kernel: [60935.463806] RSP: 0018:ffff880130759e08 EFLAGS: 00010202 Jun 20 13:48:05 kip kernel: [60935.465883] RAX: 0000000000000000 RBX: ffff88012e48b000 RCX: ffffffffa069a4c0 Jun 20 13:48:05 kip kernel: [60935.467980] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88012e48b2f0 Jun 20 13:48:05 kip kernel: [60935.470078] RBP: ffff880130759e48 R08: 0000000000000000 R09: 000000000000253a Jun 20 13:48:05 kip kernel: [60935.472207] R10: 00007fff66f62030 R11: 0000000000000000 R12: ffff880036458c40 Jun 20 13:48:05 kip kernel: [60935.474338] R13: ffffffff81856860 R14: ffff88012e48b010 R15: ffff88012dc19000 Jun 20 13:48:05 kip kernel: [60935.476503] FS: 00007ff8f383e700(0000) GS:ffff880137c00000(0000) knlGS:0000000000000000 Jun 20 13:48:05 kip kernel: [60935.478722] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jun 20 13:48:05 kip kernel: [60935.480966] CR2: 0000000000000050 CR3: 000000012f4f4000 CR4: 00000000000007f0 Jun 20 13:48:05 kip kernel: [60935.483253] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jun 20 13:48:05 kip kernel: [60935.485558] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Jun 20 13:48:05 kip kernel: [60935.487865] Process cat (pid: 4514, threadinfo ffff880130758000, task ffff880036462dc0) Jun 20 13:48:05 kip kernel: [60935.490201] Stack: Jun 20 13:48:05 kip kernel: [60935.492602] ffff880130759e58 ffff88012e48b2f0 0000000000000000 ffffffffa069e160 Jun 20 13:48:05 kip kernel: [60935.495027] ffff880036458c40 ffffffff81856860 ffff88012e48b010 ffff88006d2f5e00 Jun 20 13:48:05 kip kernel: [60935.497478] ffff880130759e78 ffffffff8140b5c7 ffff880130759e68 ffffffff8112670e Jun 20 13:48:05 kip kernel: [60935.499962] Call Trace: Jun 20 13:48:05 kip kernel: [60935.502430] [<ffffffff8140b5c7>] dev_attr_show+0x27/0x50 Jun 20 13:48:05 kip kernel: [60935.504900] [<ffffffff8112670e>] ? __get_free_pages+0xe/0x40 Jun 20 13:48:05 kip kernel: [60935.507379] [<ffffffff811f48ab>] fill_read_buffer+0x6b/0xf0 Jun 20 13:48:05 kip kernel: [60935.509863] [<ffffffff811f49d0>] sysfs_read_file+0xa0/0xb0 Jun 20 13:48:05 kip kernel: [60935.512341] [<ffffffff81184285>] vfs_read+0xc5/0x190 Jun 20 13:48:05 kip kernel: [60935.514799] [<ffffffff81184451>] sys_read+0x51/0x90 Jun 20 13:48:05 kip kernel: [60935.517279] [<ffffffff81674e69>] system_call_fastpath+0x16/0x1b Jun 20 13:48:05 kip kernel: [60935.519785] Code: 24 01 4c 29 f8 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f c9 c3 48 8b 93 28 d2 69 a0 48 c7 c6 ea d2 69 a0 eb a4 48 8b 83 18 03 00 00 <4c> 8b 68 50 e8 a0 12 00 00 49 89 c6 e9 53 ff ff ff 0f 1f 84 00 Jun 20 13:48:05 kip kernel: [60935.525398] RIP [<ffffffffa069a5b7>] show_protocols+0xf7/0x110 [rc_core] Jun 20 13:48:05 kip kernel: [60935.528232] RSP <ffff880130759e08> Jun 20 13:48:05 kip kernel: [60935.531064] CR2: 0000000000000050 Jun 20 13:48:05 kip kernel: [60935.596972] ---[ end trace caead8062106f2dc ]--- After which I find it difficult to do anything other than reboot. The plugging-in sequence looks like this: Jun 20 12:41:51 kip kernel: [56968.821466] usb 2-1.3: new high-speed USB device number 3 using ehci_hcd Jun 20 12:41:51 kip mtp-probe: checking bus 2, device 3: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3" Jun 20 12:41:51 kip mtp-probe: bus: 2, device: 3 was not an MTP device Jun 20 12:41:52 kip kernel: [56969.771712] smscore_set_device_mode: firmware download success: sms1xxx-hcw-55xxx-dvbt-02.fw Jun 20 12:41:52 kip kernel: [56969.774971] sms_ir_init: Allocating rc device Jun 20 12:41:52 kip kernel: [56969.774982] sms_ir_init: IR port 0, timeout 100 ms Jun 20 12:41:52 kip kernel: [56969.774987] sms_ir_init: Input device (IR) SMS IR (Hauppauge WinTV MiniStick) is set for key events Jun 20 12:41:52 kip kernel: [56969.839568] Registered IR keymap rc-hauppauge Jun 20 12:41:52 kip kernel: [56969.839746] input: SMS IR (Hauppauge WinTV MiniStick) as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/rc/rc0/input16 Jun 20 12:41:52 kip kernel: [56969.839853] rc0: SMS IR (Hauppauge WinTV MiniStick) as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.3/rc/rc0 Jun 20 12:41:52 kip kernel: [56969.869111] IR NEC protocol handler initialized Jun 20 12:41:52 kip kernel: [56969.905160] DVB: registering new adapter (Hauppauge WinTV MiniStick) Jun 20 12:41:52 kip kernel: [56969.905954] DVB: registering adapter 0 frontend 0 (Siano Mobile Digital MDTV Receiver)... Jun 20 12:41:52 kip kernel: [56969.908307] usbcore: registered new interface driver smsusb Jun 20 12:41:52 kip kernel: [56969.925459] IR RC5(x) protocol handler initialized Jun 20 12:41:52 kip kernel: [56969.927605] IR RC6 protocol handler initialized Jun 20 12:41:52 kip kernel: [56969.934966] IR JVC protocol handler initialized Jun 20 12:41:52 kip kernel: [56969.947612] IR Sony protocol handler initialized Jun 20 12:41:52 kip kernel: [56969.956956] IR SANYO protocol handler initialized Jun 20 12:41:52 kip kernel: [56969.958762] input: MCE IR Keyboard/Mouse (smsmdtv) as /devices/virtual/input/input17 Jun 20 12:41:52 kip kernel: [56969.958858] IR MCE Keyboard/mouse protocol handler initialized Jun 20 12:41:52 kip kernel: [56969.965675] lirc_dev: IR Remote Control driver registered, major 250 Jun 20 12:41:52 kip kernel: [56969.966256] rc rc0: lirc_dev: driver ir-lirc-codec (smsmdtv) registered at minor = 0 Jun 20 12:41:52 kip kernel: [56969.966260] IR LIRC bridge handler initialized I reported this to Ubuntu at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1015836 which includes more (probably irrelevant) information about my system. What can I do to help? regards, Douglas Bagnall -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
