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Token Ring
Posts: 219
Registered: ‎10-18-2008
Location: Amsterdam
0 Kudos

TouchPad driver: relatively high CPU load and loads of registry accesses

[ Edited ]

Under Vista 32 SP1 with the current UltraNav drivers (v 9.1.3.7) the process "SynTPEnh.exe" is creating a relatively high CPU load (2%) and is constantly accessing the registry. See here for a typical pattern creating by Process Monitor:

 

11:45:38.8648734    SynTPEnh.exe    3544    RegCreateKey    HKU\S-1-XXX\Software\Synaptics\SynTPEnh\UltraNavPS2    SUCCESS    Desired Access: Maximum Allowed, Granted Access: All Access
11:45:38.8649077    SynTPEnh.exe    3544    RegQueryValue    HKU\S-1-XXX\Software\Synaptics\SynTPEnh\UltraNavPS2\TrackPointModeFunction    SUCCESS    Type: REG_DWORD, Length: 4, Data: 17
11:45:38.8649209    SynTPEnh.exe    3544    RegCloseKey    HKU\S-1-XXX\Software\Synaptics\SynTPEnh\UltraNavPS2    SUCCESS  
11:45:38.8752991    SynTPEnh.exe    3544    RegCreateKey    HKU\S-1-XXX\Software\Synaptics\SynTPEnh\UltraNavPS2    SUCCESS    Desired Access: Maximum Allowed, Granted Access: All Access
11:45:38.8753153    SynTPEnh.exe    3544    RegQueryValue    HKU\S-1-XXX\Software\Synaptics\SynTPEnh\UltraNavPS2\TrackPointModeFunction    SUCCESS    Type: REG_DWORD, Length: 4, Data: 17
11:45:38.8753257    SynTPEnh.exe    3544    RegCloseKey    HKU\S-1-XXX\Software\Synaptics\SynTPEnh\UltraNavPS2    SUCCESS  
11:45:38.8901752    SynTPEnh.exe    3544    RegCreateKey    HKU\S-1-XXX\Software\Synaptics\SynTPEnh\UltraNavPS2    SUCCESS    Desired Access: Maximum Allowed, Granted Access: All Access
11:45:38.8902010    SynTPEnh.exe    3544    RegQueryValue    HKU\S-1-XXX\Software\Synaptics\SynTPEnh\UltraNavPS2\TrackPointModeFunction    SUCCESS    Type: REG_DWORD, Length: 4, Data: 17

 

 

Can this driver be optimized?

Also, when I use the TrackPoint to scroll in Firefox or in other applications, scrolling is not as smooth as when I use a simple external mouse with a wheel. Moreover, while scrolling with the TrackPoint, the "scrolling cursor" flickers.

Message Edited by Izmi on 01-17-2009 02:58 AM
Blue Screen Again
Posts: 2
Registered: ‎08-23-2010
Location: Manchester, UK
0 Kudos

Re: TouchPad driver: relatively high CPU load and loads of registry accesses

Same here, but usually around 10% CPU, Win7 64bit on T431s