So I've had my M96 Universe since December 2014. I've been on both the firmware that came with the device, as well as the 2014-10-13 firmware. On both firmwares, I have a device that locks up entirely after about 20-30 minutes of use. When it locks up, I have to hold down the power button for at least 5 seconds, and then hold it down again to restart the device.
Suffice it to say that this is rather annoying, especially when it takes about 5 minutes post-reboot for the device to scan my ebooks and PDFs.
I've tried lots of things to diagnose the problem, including installing catlog and having it record to a logfile every line. There's nothing of interest there, assuming that it's actually capturing the last log entry before the lockup. (This lockup only occurs when I'm on the battery, and not when I'm connected to a power source, so I can't just run logcat on my laptop to try and diagnose the issue.) Here are two logs from before the most recent crashes:
Code:
04-26 13:28:46.690 D/dalvikvm( 3090): GC_EXPLICIT freed 95K, 10% free 17058K/18887K, paused 2ms+3ms
04-26 13:28:46.730 I/imx6.gralloc( 1962): Display Request: 5473 (0, 0) - (1200, 825) mode = 0x5 flags = 0x0
04-26 13:28:48.980 D/pms ( 2046): Switch to SYSTEM_PM_STATE_IDLE
04-26 13:28:49.190 I/power ( 2046): *** set_screen_state 2
04-26 13:28:49.190 I/pms ( 2046): System Power State: [1] Power State to Set: [2]
04-26 13:28:49.200 D/SurfaceFlinger( 1962): About to give-up screen, flinger = 0x1acc948
04-26 13:29:26.070 I/power ( 2046): *** set_screen_state 1
04-26 13:29:26.100 I/WindowManager( 2046): No lock screen!
04-26 13:29:26.130 W/audio_hw_primary( 1965): set parameters screen_state=on
04-26 13:29:26.170 D/SurfaceFlinger( 1962): Screen about to return, flinger = 0x1acc948
04-26 13:29:26.180 I/imx6.gralloc( 1962): EPD screen update disabled.
04-26 13:29:26.700 I/imx6.gralloc( 1962): Display Request: 5474 (0, 0) - (1200, 825) mode = 0x62 flags = 0x0
04-26 13:29:28.980 D/pms ( 2046): Switch to SYSTEM_PM_STATE_IDLE
04-26 13:29:29.190 I/power ( 2046): *** set_screen_state 2
04-26 13:29:29.190 I/pms ( 2046): System Power State: [1] Power State to Set: [2]
04-26 13:29:29.200 D/SurfaceFlinger( 1962): About to give-up screen, flinger = 0x1acc948
Code:
04-26 13:08:27.600 W/ActivityManager( 2046): Activity pause timeout for ActivityRecord{4144b448 com.steadfastinnovation.android.projectpapyrus/.ui.NoteEditorActivity}
04-26 13:08:27.630 E/Height ( 2184): 1152
04-26 13:08:27.630 E/Width ( 2184): 825
04-26 13:08:27.630 E/density ( 2184): 1.0
04-26 13:08:27.630 E/densityDPI( 2184): 160
04-26 13:08:27.630 I/ActivityManager( 2046): START {cmp=com.onyx.android.launcher/.LauncherActivity} from pid 2184
04-26 13:08:27.630 W/ActivityManager( 2046): Duplicate finish request for ActivityRecord{41263b40 com.onyx.android.launcher/.LauncherStartupActivity}
04-26 13:08:27.690 W/OnyxBookProgress( 2184): BookProgress: current must start from 1
04-26 13:08:27.690 W/OnyxBookProgress( 2184): BookProgress: current must start from 1
04-26 13:08:27.700 D/OnyxCMSCenterHelper( 2184): history item count: 10
04-26 13:08:27.730 D/OnyxGridView( 2184): setSelection: 0
04-26 13:08:27.800 D/dalvikvm( 2184): GC_CONCURRENT freed 1674K, 25% free 10934K/14471K, paused 2ms+4ms
04-26 13:08:27.900 W/OnyxBookProgress( 2184): BookProgress: current must start from 1
04-26 13:08:27.900 W/OnyxBookProgress( 2184): BookProgress: current must start from 1
04-26 13:08:27.900 D/OnyxCMSCenterHelper( 2184): history item count: 10
04-26 13:08:32.840 D/pms ( 2046): Switch to SYSTEM_PM_STATE_IDLE
04-26 13:08:33.050 I/power ( 2046): *** set_screen_state 2
04-26 13:08:33.050 I/pms ( 2046): System Power State: [1] Power State to Set: [2]
I don't have much on this tablet, basically I just have the standard apps, my ebooks and PDFs, Calibre Companion, AlReader, and Papyrus/Quill for taking notes. The lockups occur both when reading in AlReader or while taking notes in Papyrus/Quill, so it's not due to any one particular app. I also have FolderSync that runs every 6 hours or so, but there's nothing in my logs that would suggest FolderSync is the problem. I have a few hundred ebooks and a couple thousand PDFs (I keep all of my research PDFs on my SD card), but again, the logs don't indicate that there is some OOM error due to a scanning process.
Has anyone else had this problem? It's becoming annoying enough that I'm about ready to return to my eyestrain-inducing Samsung device just so that I can get reading and work done. I can't deal with a device that isn't stable enough to use for more than 20-30 minutes. I really want to like my M96, I really do, but unless I can figure out a way to fix this I'm going to have to look into selling it. Thanks for any help anyone can provide.