Dynadock U3 - Satellite L500 sleep issues

chippedliver · 06-04-2012, 04:16 AM

Ok, I think I've solved it through some scripting.

Unplugging and re-plugging the dock seems to always work in bring the display to the external monitor. Why oh why it doesn't work when you sleep/wake is beyond.

Anyway. Plugging/unplugging is the same as disabling/re-enabling the USB Composite Port. I also discovered that disabling/enabling the "Dynadock U3.0" under USB Display Adaptors has the same effect. The picture freezes when you disable and then you can re-enable via the laptop screen.

What I did is get devcon.exe for Windows 7 which allows you to manage devices from the command line.

http://social.technet.microsoft.com/...icles/182.aspx

I then dump the hwids and found the hwid for the "Dynadock U3.0" and put it in a script. i.e.

c:\devcon\devcon.exe disable "USB\VID_17E9&PID_4305&REV_0015&MI_00"
c:\devcon\devcon.exe enable "USB\VID_17E9&PID_4305&REV_0015&MI_00"

And this worked perfectly. If you get no matching device errors despite it finding the device then you have the wrong (old I suppose) version of devcon or didn't follow the install instructions. I tried copying it out of the cab file and kept getting the error. Following the instructions from microsoft worked.

I then followed these instructions to create a script to run when the computer wakes.

http://superuser.com/questions/11380...leep-hibernate

It makes wake up a fraction slow (20 seconds) but the external monitor is always there now or so it seems with limited testing.

C

06-04-2012, 04:16 AM	#2
chippedliver Junior Member Join Date: Jun 2012 Posts: 3	Ok, I think I've solved it through some scripting. Unplugging and re-plugging the dock seems to always work in bring the display to the external monitor. Why oh why it doesn't work when you sleep/wake is beyond. Anyway. Plugging/unplugging is the same as disabling/re-enabling the USB Composite Port. I also discovered that disabling/enabling the "Dynadock U3.0" under USB Display Adaptors has the same effect. The picture freezes when you disable and then you can re-enable via the laptop screen. What I did is get devcon.exe for Windows 7 which allows you to manage devices from the command line. http://social.technet.microsoft.com/...icles/182.aspx I then dump the hwids and found the hwid for the "Dynadock U3.0" and put it in a script. i.e. c:\devcon\devcon.exe disable "USB\VID_17E9&PID_4305&REV_0015&MI_00" c:\devcon\devcon.exe enable "USB\VID_17E9&PID_4305&REV_0015&MI_00" And this worked perfectly. If you get no matching device errors despite it finding the device then you have the wrong (old I suppose) version of devcon or didn't follow the install instructions. I tried copying it out of the cab file and kept getting the error. Following the instructions from microsoft worked. I then followed these instructions to create a script to run when the computer wakes. http://superuser.com/questions/11380...leep-hibernate It makes wake up a fraction slow (20 seconds) but the external monitor is always there now or so it seems with limited testing. C