[AT&T LG Optimus G] hdcp:
I am having a similar issue as discussed in this topic: http://xdaforums.com/showthread.php?t=2080956&page=3. I'm stock rooted, software version E97010o.

Does anyone else still experience this problem? Sometimes it happens with the phone sitting on my desk or when I'm traveling. I initially thought it was a poor hand off from "4G" and LTE, but I can seem to trigger it repeatedly when using Google Maps and having it try to lock on my position using GPS. Looking at the log, it says the modem is resetting but it's not giving a reason why. I copied the log while it was happening repeatedly.

<3>[13-02-11 21:48:38.881] hsic_sysmon_readwrite: device was not opened
<3>[13-02-11 21:48:38.881] mdm_restart_reason_fn: Error retrieving mdm restart reason, ret = -19, 9/10 tries
<4>[13-02-11 21:48:39.261] ChgLog>, 59, 4051989, 586100, 4596388, 1-7, 46, 292, 900
<6>[13-02-11 21:48:39.402] mdm_pblrdy_change: pbl ready:0
<7>[13-02-11 21:48:39.412] mdm_modem_ioctl: Entering ioctl cmd = 5
<7>[13-02-11 21:48:39.412] mdm_modem_ioctl: check if mdm is booted up
<6>[13-02-11 21:48:39.412] mdm_modem_ioctl: normal boot done
<7>[13-02-11 21:48:39.412] mdm_modem_ioctl: Entering ioctl cmd = 7
<7>[13-02-11 21:48:39.412] mdm_modem_ioctl: wait for mdm to need images reloaded
<6>[13-02-11 21:48:39.412] mdm_subsys_powerup: mdm modem has been restarted
<6>[13-02-11 21:48:39.412] subsys-restart: subsystem_restart_wq_func(): [d1957740]: Restart sequence for external_modem completed.
<3>[13-02-11 21:48:39.892] hsic_sysmon_readwrite: device was not opened
<3>[13-02-11 21:48:39.892] mdm_restart_reason_fn: Error retrieving mdm restart reason, ret = -19, 10/10 tries
<7>[13-02-11 21:48:40.042] mdm_status_change: mdm sent status change interrupt
<6>[13-02-11 21:48:40.042] mdm_status_change: status = 1: mdm is now ready
<7>[13-02-11 21:48:40.042] mdm_status_fn: status:1
<7>[13-02-11 21:48:40.042] mdm_status_changed: value:1
<6>[13-02-11 21:48:40.062] msm_hsic_host msm_hsic_host: remove, state 1
<6>[13-02-11 21:48:40.062] usb usb1: USB disconnect, device number 1
<6>[13-02-11 21:48:40.062] usb 1-1: USB disconnect, device number 2
<6>[13-02-11 21:48:40.062] qcserial ttyUSB0: Qualcomm USB modem converter now disconnected from ttyUSB0
<6>[13-02-11 21:48:40.062] qcserial 1-1:1.0: device disconnected
<6>[13-02-11 21:48:40.082] msm_hsic_host msm_hsic_host: USB bus 1 deregistered
<6>[13-02-11 21:48:40.092] msm_hsic_host msm_hsic_host: Qualcomm EHCI Host Controller using HSIC
<6>[13-02-11 21:48:40.092] msm_hsic_host msm_hsic_host: new USB bus registered, assigned bus number 1
<6>[13-02-11 21:48:40.122] msm_hsic_host msm_hsic_host: irq 261, io mem 0x12510000
<6>[13-02-11 21:48:40.142] msm_hsic_host msm_hsic_host: USB 2.0 started, EHCI 1.00
<6>[13-02-11 21:48:40.142] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
<6>[13-02-11 21:48:40.142] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
<6>[13-02-11 21:48:40.142] usb usb1: Product: Qualcomm EHCI Host Controller using HSIC
<6>[13-02-11 21:48:40.142] usb usb1: Manufacturer: Linux 3.0.21 ehci_hcd
<6>[13-02-11 21:48:40.142] usb usb1: SerialNumber: msm_hsic_host
<6>[13-02-11 21:48:40.142] hub 1-0:1.0: USB hub found
<6>[13-02-11 21:48:40.142] hub 1-0:1.0: 1 port detected
<6>[13-02-11 21:48:40.513] usb 1-1: new high speed USB device number 2 using msm_hsic_host
<6>[13-02-11 21:48:40.563] usb 1-1: New USB device found, idVendor=05c6, idProduct=9048
<6>[13-02-11 21:48:40.563] usb 1-1: New USB device strings: Mfr=3, Product=2, SerialNumber=0
<6>[13-02-11 21:48:40.563] usb 1-1: Product: Qualcomm CDMA Technologies MSM
<6>[13-02-11 21:48:40.563] usb 1-1: Manufacturer: Qualcomm, Incorporated
<6>[13-02-11 21:48:40.573] qcserial 1-1:1.2: Qualcomm USB modem converter detected
<6>[13-02-11 21:48:40.573] usb 1-1: Qualcomm USB modem converter now attached to ttyUSB0
<6>[13-02-11 21:48:40.583] rmnet_usb 1-1:1.5: rmnet_usb0: register 'rmnet_usb' at usb-msm_hsic_host-1, RmNET net device, 1a:f1:f6:8f:4c:40
<6>[13-02-11 21:48:40.593] rmnet_usb 1-1:1.6: rmnet_usb1: register 'rmnet_usb' at usb-msm_hsic_host-1, RmNET net device, 1a:f1:f6:8f:4c:40
<6>[13-02-11 21:48:40.613] rmnet_usb 1-1:1.7: rmnet_usb2: register 'rmnet_usb' at usb-msm_hsic_host-1, RmNET net device, 1a:f1:f6:8f:4c:40
<6>[13-02-11 21:48:40.633] rmnet_usb 1-1:1.8: rmnet_usb3: register 'rmnet_usb' at usb-msm_hsic_host-1, RmNET net device, 1a:f1:f6:8f:4c:40
<3>[13-02-11 21:48:40.903] mdm restart reason: MDM-MPSS:ds3gtimer.c:390:Assertion 0 failedffset < FS_BUFFER_FREE_BITMAP_UINT3

It doesn't happen all the time, but most of the time when using Maps. Sometimes it recovers and lets me use Maps without an issue but other times the only way to fix it is to reboot. Thankfully the reboot time of this phone is quick, so it's not too much of a hassle. This seems like a software problem as mentioned in the thread I referenced earlier. To those that are using other ROMs, do you experience this issue?

Thanks for any insight.