Windows 8, Lenvo USB 3.0 dock = lag + fuzzy image

skomialek · 08-14-2013, 11:20 AM

I'm experiencing exactly same issue (big lag in mouse movements). I've installed latest driver but still no help.

Setup:
- Lenovo X1 Carbon
- ThinkPad USB 3.0 dock
- 2 screens running 1920x1200
- Gigabit Ethernet cable connected
- Wireless mouse and keyboard receiver connected to the dock
- DisplayLinkManager v. 7.3.49122.0

Some observations (I didn't bother read through all of the posts in the thread so sorry if there are some duplicates):
- DisplayLinkManager eats up ~20% CPU (seems mostly kernel time)
- Updated driver doesn't seem to help at all
- lag is gone if I connect mouse / keyboard receiver directly to the laptop (not through the dock)
- with no receiver DisplayLinkManager CPU usage is down to 3~5%

For now I'm happy with the workaround (connect mouse and keyboard receiver directly to the laptop), but it'd be really nice if this issue got solved.

08-14-2013, 11:20 AM	#24
skomialek Junior Member Join Date: Aug 2013 Posts: 2	I'm experiencing exactly same issue (big lag in mouse movements). I've installed latest driver but still no help. Setup: - Lenovo X1 Carbon - ThinkPad USB 3.0 dock - 2 screens running 1920x1200 - Gigabit Ethernet cable connected - Wireless mouse and keyboard receiver connected to the dock - DisplayLinkManager v. 7.3.49122.0 Some observations (I didn't bother read through all of the posts in the thread so sorry if there are some duplicates): - DisplayLinkManager eats up ~20% CPU (seems mostly kernel time) - Updated driver doesn't seem to help at all - lag is gone if I connect mouse / keyboard receiver directly to the laptop (not through the dock) - with no receiver DisplayLinkManager CPU usage is down to 3~5% For now I'm happy with the workaround (connect mouse and keyboard receiver directly to the laptop), but it'd be really nice if this issue got solved.