I have the following hardware: * Lenovo Thinkpad x230 * Ericsson H5321 gw WWAN card Whilst the 3G card can connect, it's very unreliable. It * drops out during use (a USB disconnection) * is often not available after a suspend-to-RAM * sometimes gives "Modem hangup" in pppd after ATDT command The common and most reproducable is that the WWAN card likely does not come back up after suspend-to-RAM. See below for the dmesg on resume (see below, kernel 3.10.30). I feel it could hold an explanation, as the 3G card is so noisy during this process. Anything in the "add hid device: -71" error? I also saw what appeared to be the same issues using a standard Fedora 20 boot USB as a test, which seemed to be using new cdc stuff instead of pppd. I've checked the hardware, and re-seated it. I can see others who appear to be having similar problems http://forums.linuxmint.com/viewtopic.php?f=53&t=130708 http://forums.debian.net/viewtopic.php?f=7&t=107986&sid=aac0bde3ea3dfe04f5f00921d44f8997&start=15 http://www.confesstalk.com/tech/problems-getting-built-in-3g-modem-ericsson-h5321gw-usb-id-0bdb1926-working-on-my-lenovo-x230-debian/ Is there any lead I can follow here? Thanks in advance -- Mark ACPI: Low-level resume complete PM: Restoring platform NVS memory Enabling non-boot CPUs ... smpboot: Booting Node 0 Processor 1 APIC 0x1 Initializing CPU#1 Intel pstate controlling: cpu 1 CPU1 is up smpboot: Booting Node 0 Processor 2 APIC 0x2 Initializing CPU#2 Intel pstate controlling: cpu 2 CPU2 is up smpboot: Booting Node 0 Processor 3 APIC 0x3 Initializing CPU#3 Intel pstate controlling: cpu 3 CPU3 is up ACPI: Waking up from system sleep state S3 i915 0000:00:02.0: power state changed by ACPI to D0 xhci_hcd 0000:00:14.0: power state changed by ACPI to D0 xhci_hcd 0000:00:14.0: System wakeup disabled by ACPI ehci-pci 0000:00:1a.0: power state changed by ACPI to D0 ehci-pci 0000:00:1a.0: System wakeup disabled by ACPI ehci-pci 0000:00:1d.0: power state changed by ACPI to D0 ehci-pci 0000:00:1d.0: System wakeup disabled by ACPI sdhci-pci 0000:02:00.0: MMC controller base frequency changed to 50Mhz. PM: noirq resume of devices complete after 110.498 msecs PM: early resume of devices complete after 0.118 msecs i915 0000:00:02.0: setting latency timer to 64 xhci_hcd 0000:00:14.0: setting latency timer to 64 e1000e 0000:00:19.0: setting latency timer to 64 mei_me 0000:00:16.0: irq 42 for MSI/MSI-X e1000e 0000:00:19.0: irq 44 for MSI/MSI-X ehci-pci 0000:00:1a.0: setting latency timer to 64 ahci 0000:00:1f.2: setting latency timer to 64 snd_hda_intel 0000:00:1b.0: irq 45 for MSI/MSI-X ehci-pci 0000:00:1d.0: setting latency timer to 64 [drm] Wrong MCH_SSKPD value: 0x20100406 [drm] This can cause pipe underruns and display issues. [drm] Please upgrade your BIOS to fix this. usb 3-1.6: reset high-speed USB device number 4 using ehci-pci ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300) ata5: SATA link down (SStatus 0 SControl 300) ata2: SATA link down (SStatus 0 SControl 300) ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out ata1.00: configured for UDMA/133 sd 2:0:0:0: [sda] Starting disk usb 3-1.4: reset full-speed USB device number 3 using ehci-pci btusb 3-1.4:1.0: no reset_resume for driver btusb? btusb 3-1.4:1.1: no reset_resume for driver btusb? iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0 usb 1-4: reset high-speed USB device number 48 using xhci_hcd usb 1-4: device firmware changed PM: resume of devices complete after 715.316 msecs Restarting tasks ... done. video LNXVIDEO:00: Restoring backlight state usb 1-4: USB disconnect, device number 48 cdc_ncm 1-4:1.6 wwan0: unregister 'cdc_ncm' usb-0000:00:14.0-4, Mobile Broadband Network Device xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep f050af60 xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep f050af8c xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep f050ade0 xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep f050ae0c xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep f050a000 xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep f050a02c xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ef4076c0 xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep f050a2a0 xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep f050a2cc xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ef407c80 xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ef407f80 xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ef407c40 xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ef407a40 xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ef407ac0 ehci-pci 0000:00:1d.0: power state changed by ACPI to D3cold usb 1-4: new high-speed USB device number 49 using xhci_hcd usb 1-4: New USB device found, idVendor=0bdb, idProduct=1927 usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=5 usb 1-4: Product: H5321 gw usb 1-4: Manufacturer: Lenovo usb 1-4: SerialNumber: FB2A719E9E782FA0 usbhid 1-4:1.0: can't add hid device: -71 usbhid: probe of 1-4:1.0 failed with error -71 usb 1-4: USB disconnect, device number 49 xhci_hcd 0000:00:14.0: power state changed by ACPI to D3cold [drm] Enabling RC6 states: RC6 on, RC6p on, RC6pp off ehci-pci 0000:00:1d.0: power state changed by ACPI to D0 ehci-pci 0000:00:1d.0: setting latency timer to 64 xhci_hcd 0000:00:14.0: power state changed by ACPI to D0 ehci-pci 0000:00:1d.0: power state changed by ACPI to D3cold xhci_hcd 0000:00:14.0: setting latency timer to 64 usb 1-4: new high-speed USB device number 50 using xhci_hcd usb 1-4: New USB device found, idVendor=0bdb, idProduct=1926 usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-4: Product: H5321 gw usb 1-4: Manufacturer: Lenovo usb 1-4: SerialNumber: FB2A719E9E782FM0 cdc_acm 1-4:1.1: ttyACM0: USB ACM device cdc_acm 1-4:1.3: ttyACM1: USB ACM device cdc_wdm 1-4:1.5: cdc-wdm0: USB WDM device usb 1-4: MAC-Address: 02:15:e0:ec:01:00 cdc_ncm 1-4:1.6 wwan0: register 'cdc_ncm' at usb-0000:00:14.0-4, Mobile Broadband Network Device, 02:15:e0:ec:01:00 cdc_wdm 1-4:1.8: cdc-wdm1: USB WDM device cdc_acm 1-4:1.9: ttyACM2: USB ACM device wlan0: authenticate with 00:0d:93:8a:7f:0d wlan0: send auth to 00:0d:93:8a:7f:0d (try 1/3) wlan0: authenticated iwlwifi 0000:03:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP iwlwifi 0000:03:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP wlan0: associate with 00:0d:93:8a:7f:0d (try 1/3) wlan0: RX AssocResp from 00:0d:93:8a:7f:0d (capab=0x411 status=0 aid=1) wlan0: associated ehci-pci 0000:00:1a.0: power state changed by ACPI to D3cold -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
