[Galaxy Tab 8.9 Android Development] _motley:
You have some weird stuff happening with video and the i2c bus reporting errors. Make sure you are aren't undervolting at lower frequencies and that SetCPU is not setting the UV on boot for them. Further up in the thread, you were undervolting at the lower frequencies.

If it's not something simple like this, if it were me, I would go back to the stock 3.2 with stock kernel and see if it is still happening (no extra launchers or custom apps etc., you may need to wipe data to achieve this).

Here is my tablet performing normally with stock 3.2 @1.5GHz:

<6>[84804.652903] melfas_touch_power_enable on
<6>[84804.656352] [sec_power_key] R
<6>[84804.758138] [sec_key] R
<4>[84804.965772] lcd_bl_handler called
<4>[84805.156268] [ACCELERMETER SENSOR] Cal data (65,46,21)
<6>[84805.575847] [sec_power_key] P
<6>[84805.722348] [sec_power_key] R
<6>[84807.209282] request_suspend_state: sleep (0->3) at 15070713634496 (2011-11-24 02:36:29.497671001 UTC)
<6>[84807.211199] [TSP] melfas_ts_early_suspend
<6>[84807.211247] melfas_touch_power_enable off
<3>[84807.212412] acc_con_early_suspend
<4>[84807.229384] + cmc623_suspend
<4>[84807.645720] - cmc623_suspend
<6>[84807.646664] active wake lock wow_wake_lock, time left 282
<6>[84807.646689] sync_system +
<6>[84807.675433] sync_system -
<6>[84807.815726] [sec_power_key] P
<6>[84807.819073] request_suspend_state: wakeup (3->0) at 15071323447496 (2011-11-24 02:36:30.107486001 UTC)
<4>[84807.819267] tegra_dc_setup_clk :: set pclk to 74666666
<6>[84808.016134] [sec_power_key] R
<4>[84808.026106] + __cmc623_resume
<4>[84808.027225]
<4>[84808.027231] ### wl_iw_set_cscan: info->cmd:8b0c, info->flags:0, u.data=0xbeb7d8ec, u.len=20
<4>[84808.027264] wl_iw_combined_scan_set nssid=1 nchan=1
<4>[84808.041970] wl_iw_set_btcoex_dhcp: DHCP session done
<4>[84808.273327] [CMC623:INFO]:apply_main_tune_value:curr main tune : DYN_UI_OFF
<4>[84808.273406] [CMC623:INFO]:apply_main_tune_value: main tune : DYN_UI_OFF
<4>[84808.291163] - __cmc623_resume
<3>[84808.297885] acc_con_late_resume
<6>[84808.301863] [TSP] melfas_ts_late_resume : TA/USB disconnect
<6>[84808.301870] melfas_touch_power_enable on

Here is your tablet during the same actions. Notice all the i2c bus errors and the overlay stuck in underflow state tegra video errors (see this Nvidia patch that also lives inside this kernel that is implementing this reset: http://nv-tegra.nvidia.com/gitweb/?...ch;h=4ce07d6140b09aa49bfa823edbdd182ee74fa04e)

<6>[ 9037.884213] melfas_touch_power_enable on
<4>[ 9038.198817] lcd_bl_handler called
<4>[ 9038.391996] [ACCELERMETER SENSOR] Cal data (68,38,68)
<6>[ 9038.418657] [sec_power_key] P
<6>[ 9038.549011] [sec_power_key] R
<6>[ 9038.782352] request_suspend_state: sleep (0->3) at 1664373872001 (2011-11-24 02:07:47.728368999 UTC)
<6>[ 9038.784277] [TSP] melfas_ts_early_suspend
<6>[ 9038.784322] melfas_touch_power_enable off
<3>[ 9038.785530] acc_con_early_suspend
<4>[ 9038.957211] + cmc623_suspend
<4>[ 9038.965671] tegradc tegradc.0: overlay stuck in underflow state. resetting.
<4>[ 9039.018910] tegra_dc_setup_clk :: set pclk to 74666666
<4>[ 9039.079128] + __cmc623_resume
<4>[ 9039.324918] [CMC623:INFO]:apply_main_tune_value:curr main tune : STD_UI_ON
<4>[ 9039.324982] [CMC623:INFO]:apply_main_tune_value: main tune : STD_UI_ON
<4>[ 9039.350638] - __cmc623_resume
<4>[ 9039.350941] tegradc tegradc.0: overlay stuck in underflow state. resetting.
<4>[ 9039.368956] tegra_dc_setup_clk :: set pclk to 74666666
<4>[ 9039.403320] - cmc623_suspend
<4>[ 9039.429032] + __cmc623_resume
<6>[ 9039.448872] [sec_power_key] P
<6>[ 9039.454910] request_suspend_state: wakeup (3->0) at 1665046412002 (2011-11-24 02:07:48.400891000 UTC)
<3>[ 9039.459140] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 0, Data : 0
<3>[ 9039.469324] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : b4, Data : c002
<3>[ 9039.479731] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 28, Data : 0
<3>[ 9039.500861] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 0, Data : 0
<3>[ 9039.512129] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : b4, Data : c002
<3>[ 9039.522337] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 28, Data : 0
<3>[ 9039.533942] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 0, Data : 0
<3>[ 9039.543848] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : b4, Data : c004
<3>[ 9039.554065] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 28, Data : 0
<3>[ 9039.569286] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 0, Data : 0
<3>[ 9039.581460] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 76, Data : 707
<3>[ 9039.593028] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 77, Data : 609
<3>[ 9039.604514] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 78, Data : 706
<3>[ 9039.614837] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 79, Data : 606
<6>[ 9039.624779] [sec_power_key] R
<3>[ 9039.627164] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 7a, Data : 600
<3>[ 9039.637466] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : b4, Data : 50b0
<3>[ 9039.647211] i2c i2c-10: sendbytes: NAK bailout.
<3>[ 9039.652695] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-5) for Addr : 28, Data : 0
<4>[ 9039.678800] lcd_bl_handler called
<4>[ 9039.679261] [CMC623:INFO]:apply_main_tune_value:curr main tune : STD_UI_ON
<4>[ 9039.679311] [CMC623:INFO]:apply_main_tune_value: main tune : STD_UI_ON
<4>[ 9039.711002] - __cmc623_resume
<6>[ 9039.741868] sync_system +
<4>[ 9039.742247] tegra_dc_setup_clk :: set pclk to 74666666
<4>[ 9039.746970]
<4>[ 9039.746987] ### wl_iw_set_cscan: info->cmd:8b0c, info->flags:0, u.data=0xbeb748ec, u.len=26
<4>[ 9039.747094] wl_iw_combined_scan_set nssid=2 nchan=1
<6>[ 9039.829886] sync_system -
<4>[ 9039.849844] wl_iw_set_btcoex_dhcp: DHCP session done
<4>[ 9039.889189] + __cmc623_resume
<3>[ 9039.900574] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 0, Data : 0
<3>[ 9039.910310] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 76, Data : 2e31
<3>[ 9039.920651] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 77, Data : 2b39
<3>[ 9039.930996] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 78, Data : 2e2c
<3>[ 9039.941327] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 79, Data : 2826
<3>[ 9039.951251] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 7a, Data : 2c00
<3>[ 9039.961587] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : b4, Data : 5460
<3>[ 9039.971958] [CMC623:cmc623_I2cWrite16:ERROR] : i2c_transfer failed(-6) for Addr : 28, Data : 0
<4>[ 9040.038748] lcd_bl_handler called
<4>[ 9040.140142] [CMC623:INFO]:apply_main_tune_value:curr main tune : STD_UI_ON
<4>[ 9040.140194] [CMC623:INFO]:apply_main_tune_value: main tune : STD_UI_ON
<4>[ 9040.167940] - __cmc623_resume
<4>[ 9040.184160] tegradc tegradc.0: overlay stuck in underflow state. resetting.
<4>[ 9040.184284] + cmc623_suspend
<4>[ 9040.184315] cmc623_suspend : delayed workqueue cancel reqeust
<3>[ 9040.188565] acc_con_late_resume
<6>[ 9040.193481] [TSP] melfas_ts_late_resume : TA/USB disconnect
<6>[ 9040.193522] melfas_touch_power_enable on