Laptop w switchable graphics BSODing semi frequently, any help?

Windows 7 Home Premium x64
OEM

HP dv6190us, about 10 months old. Have not reinstalled OS.

The problem may be related to the switchable graphics, the laptop can switch between the AMD 6770M and the integrated chip.

Also, following the crash, the computer can't start up normally. To elaborate, the starting windows screen shows up, and the windows logo lights assemble and shine normally, but the screen doesn't go away. It's perpetually at that screen. So, I hit the power button to shut it down and reboot, the computer runs start up repair, doesn't detect anything, and from then on acts totally normally. One time, most recently when I did this, as I pressed the power button to shut it down from the starting windows screen, it briefly showed a BSOD that seemed shorter than the one I normally got, then shut down.

The BSOD usually occurs during normal activity, most recently it happened while the computer was open and running but I was away from keyboard. Other than crashes around once a month, the computer is fine.

This is a TDR116 Error which is typically caused by your display driver or a defect in your RAM/GPU.
STOP 0x116: VIDEO_TDR_ERROR troubleshooting
RAM - Test with Memtest86+
SFC /SCANNOW Command - System File Checker

Both your AMD Driver & DirectX components failed altogether when Windows was loading drivers during the startup process, this can either mean that driver was incorrectly installed or that the hardware is defective.

Boot in safe mode with networking, uninstall the current driver, use Driver Sweeper to remove leftoever display driver files. Then install an older driver
Software & Driver Downloads HP Pavilion dv6-6190us Entertainment Notebook PC - HP Customer Care (United States - English)

Code:

atikmpag.sys    atikmpag.sys+7b78    fffff880`030cd000    fffff880`0311e000    0x00051000    0x4e866ccd    01/10/2011 05:28:45                
dxgkrnl.sys    dxgkrnl.sys+5d000    fffff880`04652000    fffff880`04746000    0x000f4000    0x4ce799fa    20/11/2010 13:50:50                
dxgmms1.sys    dxgmms1.sys+ff07    fffff880`04746000    fffff880`0478c000    0x00046000    0x4ce799c1    20/11/2010 13:49:53

Code:

*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 116, {fffffa800fb794e0, fffff88004819aa0, ffffffffc0000001, 3}

*** WARNING: Unable to verify timestamp for atikmpag.sys
*** ERROR: Module load completed but symbols could not be loaded for atikmpag.sys
Probably caused by : atikmpag.sys ( atikmpag+7aa0 )

VIDEO_TDR_FAILURE (116)
Attempt to reset the display driver and recover from timeout failed.
Arguments:
Arg1: fffffa800fb794e0, Optional pointer to internal TDR recovery context (TDR_RECOVERY_CONTEXT).
Arg2: fffff88004819aa0, The pointer into responsible device driver module (e.g. owner tag).
Arg3: ffffffffc0000001, Optional error code (NTSTATUS) of the last failed operation.
Arg4: 0000000000000003, Optional internal context dependent data.

Debugging Details:
------------------


FAULTING_IP: 
atikmpag+7aa0
fffff880`04819aa0 4883ec28        sub     rsp,28h

DEFAULT_BUCKET_ID:  GRAPHICS_DRIVER_TDR_FAULT

CUSTOMER_CRASH_COUNT:  1

BUGCHECK_STR:  0x116

PROCESS_NAME:  System

CURRENT_IRQL:  0

STACK_TEXT:  
fffff880`071278d8 fffff880`048f6000 : 00000000`00000116 fffffa80`0fb794e0 fffff880`04819aa0 ffffffff`c0000001 : nt!KeBugCheckEx
fffff880`071278e0 fffff880`048c9569 : fffff880`04819aa0 fffffa80`0c0a0000 00000000`00000000 fffffa80`0c06c410 : dxgkrnl!TdrBugcheckOnTimeout+0xec
fffff880`07127920 fffff880`048f5dad : fffffa80`0fb794e0 fffffa80`0fb794e0 fffffa80`0fb794e0 fffffa80`0c06c410 : dxgkrnl!DXGADAPTER::PrepareToReset+0x109
fffff880`07127960 fffff880`0499cf07 : fffffa80`0fb794e0 00000000`00000000 fffffa80`07455230 fffffa80`0c06c410 : dxgkrnl!TdrIsRecoveryRequired+0x245
fffff880`07127990 fffff880`049cad5a : fffffa80`ffffffff 00000000`00b462ae fffff880`07127af0 00000000`00000002 : dxgmms1!VidSchiReportHwHang+0x40b
fffff880`07127a70 fffff880`0499829e : fffffa80`0c06c410 ffffffff`feced300 fffffa80`0d1992e0 00000000`00000000 : dxgmms1!VidSchWaitForCompletionEvent+0x196
fffff880`07127ab0 fffff880`049c4e7a : 00000000`00000000 fffffa80`0f114290 00000000`00000080 fffffa80`0c06c410 : dxgmms1!VidSchiScheduleCommandToRun+0x1b2
fffff880`07127bc0 fffff800`0311afee : 00000000`fffffc32 fffffa80`0b645b60 fffffa80`0734f040 fffffa80`0b645b60 : dxgmms1!VidSchiWorkerThread+0xba
fffff880`07127c00 fffff800`02e715e6 : fffff800`02ff5e80 fffffa80`0b645b60 fffff800`03003cc0 fffff880`0145a384 : nt!PspSystemThreadStartup+0x5a
fffff880`07127c40 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KxStartSystemThread+0x16


STACK_COMMAND:  .bugcheck ; kb

FOLLOWUP_IP: 
atikmpag+7aa0
fffff880`04819aa0 4883ec28        sub     rsp,28h

SYMBOL_NAME:  atikmpag+7aa0

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: atikmpag

IMAGE_NAME:  atikmpag.sys

DEBUG_FLR_IMAGE_TIMESTAMP:  4e866ccd

FAILURE_BUCKET_ID:  X64_0x116_IMAGE_atikmpag.sys

BUCKET_ID:  X64_0x116_IMAGE_atikmpag.sys

Followup: MachineOwner
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