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Old 06-13-2011, 09:23 AM   #1
hendrikw
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Hi Wim,

Just wondering if you have any news on this as I'm about to order several hundred of these docking stations?

Regards,
Hendrik
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Old 06-17-2011, 03:13 PM   #2
94cobra
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Default powerpoint 2010 black screen issue

Hi Wim,
I am also having problems with DisplayLink and powerpoint 2010. When I go to slide show mode, the projector screen goes black. We have also noticed the same issue with videos in full screen mode. My laptop is a Dell E6410 and I am running windows xp. I have attached the zip file.
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File Type: zip HCU-8ZY20P1_20110617_093929.zip (4.65 MB, 4 views)
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Old 06-21-2011, 10:45 AM   #3
Wim
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Hi

The problem with Windows XP is different. This is due to there being no HW acceleration when in mirror mode, so videos may not render correctly and Power point 2010 cannot render. We cannot support hardware acceleration through the Windows mirror driver on XP, so there is no way for us to get these pixels.

The workaround is to use extend mode on Windows XP for these applications, or lower the hardware acceleration level of the primary display adapter, so it will not render using hardware acceleration, and our driver can get the pixels.

Wim
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Old 01-12-2012, 09:52 PM   #4
mapexvenus
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Default problem with LT1421 and PowerPoint, YouTube

I am using the latest Windows driver with a Thinkpad LT1421 and am facing the following problems:

1. PowerPoint (2010) sideshows show up as blank
2. Unable to view YouTube videos in full screen.

I will wait for a solution for a few days and then return the product if I can't fix the problem.

thank you,
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Old 01-13-2012, 08:35 AM   #5
Wim
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Quote:
Originally Posted by mapexvenus View Post
I am using the latest Windows driver with a Thinkpad LT1421 and am facing the following problems:

1. PowerPoint (2010) sideshows show up as blank
2. Unable to view YouTube videos in full screen.

I will wait for a solution for a few days and then return the product if I can't fix the problem.

thank you,
If you switch to Aero graphics mode, rather than basic graphics, then it should solve this issue.

Wim
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Old 02-01-2012, 03:24 AM   #6
TCC_ADM
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Question XP and the displaylink driver

just to check again,

we are using XP, and have the targus dock which uses display link.

we have confirmed the fault within powerpoint 2010 when in mirror mode, and have also confirmed that to work around the issue we need to notch back the hardware acceleration on the primary display back 3 notches which disables the direct draw, direct-3D and also Direct X...
now where this fixes the issue for powerpoint, it has obvious consiquences for any program requiring direct X, etc etc. such as the cad software the school runs, plus google earth and other apps.

now if we use extended mode, on the majority of the interactive whiteboards, things are fine, however we have 10 new board which calibrate using a hardware calibration, and so extended mode doesnt work....

so my question is, besides not using the dock, upgrading the school to windows 7 and turning off the hardware acceleration, is there any way Displaylink can get around it, or is there another work around more suited....

Last edited by TCC_ADM; 02-01-2012 at 03:27 AM.
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Old 02-06-2012, 05:08 PM   #7
Wim
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Quote:
Originally Posted by TCC_ADM View Post
just to check again,

we are using XP, and have the targus dock which uses display link.

we have confirmed the fault within powerpoint 2010 when in mirror mode, and have also confirmed that to work around the issue we need to notch back the hardware acceleration on the primary display back 3 notches which disables the direct draw, direct-3D and also Direct X...
now where this fixes the issue for powerpoint, it has obvious consiquences for any program requiring direct X, etc etc. such as the cad software the school runs, plus google earth and other apps.

now if we use extended mode, on the majority of the interactive whiteboards, things are fine, however we have 10 new board which calibrate using a hardware calibration, and so extended mode doesnt work....

so my question is, besides not using the dock, upgrading the school to windows 7 and turning off the hardware acceleration, is there any way Displaylink can get around it, or is there another work around more suited....
I'm afraid these are the only workarounds. PowerPoint 2010 will use HW acceleration if available, and this is not supported by DisplayLink in mirror mode on XP.

Wim
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