DL-195 bitmap sluggishness

cshbell · 09-01-2009, 05:38 PM

So I replaced my Kensington adapter with a Diamond BVU195, which is a DL-195-based adapter. The latest and greatest, according to the DisplayLink website.

Well, on one hand, it fixed the awful coloring problem I describe in a different thread, but now this adapter is ridiculously sluggish when drawing any bitmaps or large widget redraws (e.g. even the Start Menu redraws slowly).

See the problem in action here:
http://www.youtube.com/watch?v=DVaBMSoEZ6g

I fully understand that writing USB drivers is no walk in the park, but in my experience with two different adapters, the 1.5b driver branch needs a lot of help.

Patrick · 09-02-2009, 07:27 AM

Quote:

Originally Posted by cshbell

So I replaced my Kensington adapter with a Diamond BVU195, which is a DL-195-based adapter. The latest and greatest, according to the DisplayLink website.

Well, on one hand, it fixed the awful coloring problem I describe in a different thread, but now this adapter is ridiculously sluggish when drawing any bitmaps or large widget redraws (e.g. even the Start Menu redraws slowly).

See the problem in action here:
http://www.youtube.com/watch?v=DVaBMSoEZ6g

I fully understand that writing USB drivers is no walk in the park, but in my experience with two different adapters, the 1.5b driver branch needs a lot of help.

Hmm you cables are good and plugged into the system directly or over a hub ?

Patrick aka Jolly

cshbell · 09-02-2009, 11:14 AM

Quote:

Originally Posted by Patrick

Hmm you cables are good and plugged into the system directly or over a hub ?

Hub. Does it really matter?

Patrick · 09-03-2009, 07:46 AM

Quote:

Originally Posted by cshbell

Hub. Does it really matter?

Well depends on the HUB - "we've seen things you people wouldn't believe ..." ;-)

Anyways try it directly and with two different cables just to be sure it has nothing to do with the hub or the cables.

Patrick aka Jolly

JulietteKlonk · 12-24-2009, 08:55 AM

Hello.
You made some good points there.

09-01-2009, 05:38 PM	#1
cshbell Member Join Date: Aug 2009 Posts: 30	DL-195 bitmap sluggishness So I replaced my Kensington adapter with a Diamond BVU195, which is a DL-195-based adapter. The latest and greatest, according to the DisplayLink website. Well, on one hand, it fixed the awful coloring problem I describe in a different thread, but now this adapter is ridiculously sluggish when drawing any bitmaps or large widget redraws (e.g. even the Start Menu redraws slowly). See the problem in action here: http://www.youtube.com/watch?v=DVaBMSoEZ6g I fully understand that writing USB drivers is no walk in the park, but in my experience with two different adapters, the 1.5b driver branch needs a lot of help.

12-24-2009, 08:55 AM	#5
JulietteKlonk Junior Member Join Date: Dec 2009 Posts: 2	Hello. You made some good points there. __________________ JCB