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  • Dual monitor, with a low resolution projector

    - by user900978
    I need to show a presentaion to a conference tomorrow. Today I tryed my Ubuntu 10.04 with the projector. My notebook has a resolution of 1440x960, the projector seems to have a really lower resolution. However, thanks to nvidia-settings I configured my video card (a nvidia 9800), it works with other display, but not with the projector. I found the projector, configured as Twin-view, resolution Auto and pressed on Apply, then "Save to x Configuration". On projector is visualized just a quarter of my notebook display. I tryed also to reduce my resolution and to change the resolution of projector, but I obtained no better results. How can I Solve it? On windows all goes well, but I need Ubuntu for personal reasons. Thanks in advance

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  • Loss of network connectivity when playing video on Optoma HD180 projector

    - by Jeff Fohl
    Hi Folks - New to Super User, so I hope this question fits in with the guidelines. Very strange problem I am having, and I am at a loss as to how to continue troubleshooting this one. The basic problem is that when I attempt to watch streamed video on a particular display device (an Optoma HD180 projector), my network connectivity drops like a stone to barely measurable levels. This is my setup: I have a Dell H2C 730x running Windows 7 64bit. This particular computer has two ATI Radeon HD 4800 video cards. I have two Samsung 22" monitors connected to one card, and an Optoma HD180 digital projector connected to the other card via an HDMI cable. My internet connection is normally a reliable 6Mbps. The problem I am having occurs when I stream video (or even just browse the web) on the Optoma Projector. When I do this, my internet connection drops to practically zero (just a few kilobits per second). When I move the browser away from the projector, and over to one of my Samsung monitors, the internet connection comes right back. Note that the Optoma projector is on and enabled as a third monitor all this time. I can move the mouse around on the projector without triggering the problem. I tried pinging my router when I was playing a movie on one of the monitors, and I get a 1 millisecond response. However, when I have the movie playing on the Optoma projecter, pinging the router gives me response times in the hundreds of milliseconds, or times out completely. So, it clearly is something local to my machine - and not some sort of throttling occurring down the line. I would think that it is possibly something to do with the HDMI driver conflicting somehow with my network driver (which is a USB-based wireless connection). This one has me really stumped. Anyone have any ideas?

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  • VGA Cable gave me an Electric Shock when connecting a Projector to a Laptop

    - by Felipe Luarte
    Yesterday I was trying to connect a Viewsonic Projector to my Samsung RC420 laptop... I followed this steps: I Plugged the Projector to a power source, in parallel I did the same thing with the laptop. Then I turned on the laptop, but not the Projector (this one turns a bright light when is connected to a power source). I put the VGA Cable to the Projector (this one being still turned down) and then when I was getting close to the VGA port of the Laptop... BAM! A big spark appear between the port and the cable! Immediately the whole electricity of my floor went off. A part of the port in my laptop kind of... melted down. It seems to be where the spark started. The same thing happened to the part of the cable involved. Now I'm using the laptop, and it seems that there is no problem in it, I haven't connect anything to the VGA port yet. And the projector is still working to, well... it turns on, and I haven't connect anything yet too. The projector was connected to the power source by a homemade electric extension.

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  • How do I force Windows 7 to recognize my Projector?

    - by user63564
    I have a new Dell XPS with an NVIDIA GeForce GT 445M and an old (several years) Epson PowerLite Cinema 550 projector. Windows 7 refuses to recognize that the projector is connected under normal conditions (I'll get to the strange condition in a moment). Here are some things that I have already tried: Confirm that the projector continues to work well on my old Windows XP laptop. Confirm that the video cable (HDMI to HDMI) is connected Make sure the Dell laptop is plugged in to wall power at all times Reboot both the computer and the projector Click "Detect" under the "Connect to an External Display" Windows dialog (no reaction) Click "Rigorous Display Detection" under NVIDIA Control Panel (dialog: none found) Checked "Force Television Detection on startup" under "My display is not shown..." in NVIDIA Control Panel (no effect) Here's where it gets weird... My projector has three states: off, standby and on. Standby means the power switch on the back is on, but the projector is effectively off (no picture, no access to menu or controls). When I plug in the HDMI cable while the projector is in standby, Windows detects the projector! It lets me switch to Duplicate, Extend, or Project Only mode, and adjusts the resolution appropriately. A new Generic Plug-n-Play monitor shows up in my device manager. A "Seiko EPSON PJ" display shows up in my NVIDIA control panel. Then if I turn my projector on, Windows no longer recognizes the display. This is true whether I turn the projector on while the HDMI cable is plugged in, or if I unplug the HDMI cable while turning on the projector. Anyone have any ideas, because I'm completely stumped...?

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  • DLP projector has odd colors

    - by torbengb
    At my place of work, we have several different video projectors, but they all use DLP technology, and the colors are wrong: for instance, yellow looks more like green, and all other colors are similarly distorted. Any kind of presentation or collaborative work is hindered by these wrong colors. On the laptop screen, the colors are fine but on the projector (hooked up via normal short VGA cable, and showing the same image at the same time), the colors look wrong. This is not about one specific projector or one specific laptop; it seems that any combination of projector + laptop has the exact same problem. Someone said that DLP is poor technology, but that's not true. I'm using a DLP projector at home (regular PC connected via HDMI) and the colors are excellent. Still, there's some kind of curse on the machinery at work. How can we get decent colors?

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  • Wrong PC-projector resolution in Windows 7

    - by peter.olsson
    I'm connecting a PC-projector (Benq MP721) to a Windows 7 Professional laptop (HP 6730b). All the output settings on the laptop, including the laptop screen, changes to 1024x768 (which the projector supports). However the projector says it receives 1360x768 and asks me to change the resolution to 1024x768. I'm using mirrored display. The laptop is 1024x768 The screen resolution in the control panel says 1024x768 The Intel graphics card utilities says 1024x768 The driver for the projector is a Generic PnP Monitor Is there anything in Windows 7 that would convert my 4:3 resolution to wide screen automatically?

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  • RGB to DVI adapter not working for Projector-to-PC

    - by user897052
    We have a wall-mounted projector (dell 4320) with VGA In and the other end of the cable is RGB. We have an RGB to DVI-I adapter (w/ DIP switches) inorder to plug the cable into a PC (video card has 1 VGA and 1 DVI-I port). We had no problems until recently, when the PCs hard drive crashed. After re-imaging the PC, the computer no longer "sees" the projector (the computer doesn't detect the projector as a second monitor anymore). The PC is an older Dell with an after-market video card and runs win XP. I also tried it on a new HP box (win 7), but had to add a DVI-I to DVI-D adapter. Any ideas?

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  • No picture on HDMI Output from a Pioneer 921 AV Receiver to a Projector

    - by Alexey Kulikov
    I am trying hard to tackle a what seemed to be simple problem if wiring my setup together. The setup: Mac Mini (2011) with HDMI Output Pioneer 921 K AV Receiver Acer HD Projector (HDMI) When I hook up my Mac Mini directly to the Projector with a 30 foot (10 meter) HDMI Cable everything is just fine. The picture is sharp and the colors brilliant. However, when I send HDMI to the receiver (into the BD HDMI Input) then I get absolutely no HDMI output to the projector, it keeps saying "no signal". Is there perhaps some magic combination of setup buttons that may help me resolve this problem?

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  • How to use projector wi-fi

    - by davispuh
    I have Acer P5260i projector who has wireless feature however the user manual didn't come with the description how to use this feature. I'm using a laptop. an anyone give me a detailed overview on how I should connect them through wireless?

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  • Turn a Green Laser into a Microscope Projector [Science]

    - by ETC
    No need to settle for squinting over a microscope, hack a green laser and a cheap webcam lens into a projector. Check out the video below to see the projector in action. Over at Hackteria, user Dusjagr shares a clever tutorial on how to hack a laser and some odd parts into a projector intended for microscopic subjects. With a strong enough light source, a properly spaced lens assembly, and a slide or petri dish filled with something of interest, you can create microscope projector. Curious how it would work and what the results would look like? Check out this demonstration video: That wiggling creature you see in the video is a nematode from a sample of pond water. For more information on building your own laser-scope projector, hit up the link below. DIY Laser Microscope [Hackteria via Make] Latest Features How-To Geek ETC Learn To Adjust Contrast Like a Pro in Photoshop, GIMP, and Paint.NET Have You Ever Wondered How Your Operating System Got Its Name? Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? How To Make Hundreds of Complex Photo Edits in Seconds With Photoshop Actions Awesome 10 Meter Curved Touchscreen at the University of Groningen [Video] TV Antenna Helper Makes HDTV Antenna Calibration a Snap Turn a Green Laser into a Microscope Projector [Science] The Open Road Awaits [Wallpaper] N64oid Brings N64 Emulation to Android Devices Super-Charge GIMP’s Image Editing Capabilities with G’MIC [Cross-Platform]

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  • Dell XPS + Apple Mini-Display Adaptor + Projector = KABOOM

    - by D'Arcy Lussier
    Remember how I blogged about rolling with the punches? So today my buddy and Prairie Dev Con speaker James Chambers went to present on Microsoft MVC. He brought his fancy new Dell XPS laptop, which he had used to do presentations and stream internet video to a projector before. But today, the technology gods were not smiling… James tries to connect his laptop to the projector. Nothing. The projector just can’t recognize the connection. Realize that we’ve already had two sessions in that room already, so everything *should* work. The Dell XPS laptop James has doesn’t have a VGA port. Instead, it has HDMI and Mini-Display ports. James had one of the Apple mini-display to VGA adapters. If I connected my Mac Book Pro, I could connect no problem, so it wasn’t the adapter. He could connect his laptop to projectors before, so it wasn’t the laptop. And we’d already had sessions, so it wasn’t the projector. So what was it? Well, all three it turns out. Thanks to this post over at Irongeek.com we discovered that using Windows 7 on a Dell XPS with the Apple connector and a non-plug-in-play projector won’t work. So the fix was ditch the Apple connector, use the Star Tech model instead (listed in the Irongeek article). So James is good to go, he’s going to talk at the last session and we’ve moved the Windows 8 talk Jim Russell and I were going to do until tomorrow. Roll with the punches…

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  • How to use projector wi-fi [closed]

    - by davispuh
    I have Acer P5260i projector who has wireless feature however the user manual didn't come with the description how to use this feature. I'm using a laptop. an anyone give me a detailed overview on how I should connect them through wireless?

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  • Check for interactive whiteboard or projector

    - by netmano
    I want to check that there is an interactive whiteboard or projecttor attached to the system. Actually I would like to check it is not there. (To be able to make different license levels.) Is there any technique which could be sure? Platform: MS Windows XP/Vista, MS Visual C++

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  • Few questions about a good projector on my PC and tv?

    - by jasondavis
    I have always wanted a projector for my tv, satelite, cable, and even PC in a spare bedroom. Well it's more of a home office that I spend most my time in and the catch here is it is a small room. Room is only the standard 8foot tall. Room is about 13 feet wide on the wall where I would like to mount the project and the wall where the screen would be for it. So only about 13 feet away from projector to screen. I would like to know... 1) From experience or knowledge what would be a good projector I could hook up to my satelite box and also my PC? Cheaper is better in this case but I would still like the best image for my buck and something reliable. There is no sunlight in the room either to worry about. 2) From that distance of about 12-13 feet away, how big of a clear picture could I expect? 3) What kind of cables would I need to purchase and run through my attic to my cable/satelite receiver box as well as my PC? 4) These cables in question 3 would most likely need to be a good 15-20feet in length to reach, would I need anything special for that to work at those distances?

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  • How to config multiple monitor with optimus?

    - by irrational
    I have an Acer Aspire 8951G running 12.04 Pangolin with bumblebee working beautifully. My problem is that when I connect either the VGA port or the HDMI to my projector there is no way I can see to properly set up the resolutions or colours. The default basic display driver sees the projector correctly, but messes up colours and resolutions (on hdmi) and resolutions on VGA. (Its a 1280 X 720 projector) Am I missing some sort of Xorg configuration? nvidia-xconfig does not seem to exist and running optirun nvidia-settings -c :8 opens the settings, but of course only for the one display. I just want a way to set a default config for my projector via VGA or preferably HDMI. Any help would be wonderful.

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  • What software can I use to co-ordinate a projector screen?

    - by aakashbhowmick
    When I connect my laptop to a projector, it shows everything that is going-on on my computer. However, I want want to show only certain things to users ( like videos, images, etc ). It would be good if my mouse-motions could be hidden as well. So is there any software using which I can give presentations without sharing my screen with the projector ( that is, it shows what I want it to show rather than mirroring what's going on in my laptop screen ) ?I've serached Google a lot and haven't found a solution as yet. Update : I am using Windows 7 Ultimate Edition. Update : Laptop model: HP Probook 4410s

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  • Multiple cable adapter setup not working - VGA to smartphone. All cables tested and work

    - by Christopher Rucinski
    Issue Pictured overhead projector setup does not work. #1 - #2 - #3 - Phone. All cables are tested and work! The issue is the HDMI connection between cable #2 and #3. With all other cables, the screen will automatically be displayed onto the projector screen. No extra work needed. With the pictured setup, the smartphone screen is not displayed onto the projector screen. What is the issue with the HDMI connection?? Background We recently had to do presentations at work (school), but the administration only provided VGA means of hooking up to it. Mostly likely reason probably dealt with cost. Anyways, there are several teachers that have brand new Samsung Series 9 ultrabooks (or similar). You know, the ones without VGA support. So I bought an adapter for those ultrabooks. Cable #5 in the picture below. However, both my coworker and I have been wanting to just display our phone screens on the projector. This I knew would require some extra work. What I have VGA cable to projector (cables go through the wall) For laptops HDMI to VGA cable For laptops MHL adapter For 11-pin microUSB phones microHDMI to VGA cable For ultrabooks 11-pin to 5-pin microUSB adapter For older 5-pin microUSB phones) Equipment Projectors 1 projector with VGA and HDMI input (issue is coworkers forget to switch sources) 1 projector with VGA only input Laptops 2 new Samsung ultrabooks w/o VGA or HDMI support 1 ultrabook with VGA and HDMI support several other laptops with at least VGA support 1 tablet with 11-pin microUSB at least 1 new phone with 11-pin microUSB at least 1 old phone with 5-pin microUSB Tested VGA cable (#1) to laptop Good VGA cable (#1) to HDMI adapter (#2) to laptop Good VGA cable (#1) to microHDMI adapter (#5) to laptop Good Projector to HDMI cable (not shown) to MHL adapter (#3) to Galaxy Note 3 smartphone Good VGA cable (#1) to HDMI adapter (#2) to MHL adapter (#3) to Galaxy Note 3 smartphone Does not work!! Extra Notes The 11-pin MHL adapter will not fit inside the 11-pin to 5-pin microUSB adapter so older phones can be displayed on the screen.

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  • Will HDCP cause problems with a MacBook Pro using a VGA projector?

    - by Andrew Grimm
    I'm planning on using a MacBook Pro with a projector that only has a VGA input (through the MBP's Mini DisplayPort and a Mini DisplayPort to VGA converter). Will this have problems with HDCP (High-bandwidth Digital Content Protection), either under Snow Leopard or Windows XP? I'll only be showing other people's photos, user-generated movies or PowerPoint slides. The MacBook Pro was purchased from Apple new in December 2009.

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  • How to watch 3D on Acer "3D Ready" projector?

    - by glenneroo
    We have here a Acer P1200 DLP projector which is "3D Ready" (using the BrilliantColor™ DarkChip™ 3) and documentation was not included in the packaging. We don't have a Blu-ray player and have no intention of purchasing one in the near future so I'm looking for a way to view encoded or streamed content. My question is: How is it possible to watch 3D content? What extra hardware/software will I need? EDIT: Found this information in the user manual: DLP 3D function: Choose while using DLP 3D glasses, quad buffer (NVIDIA/ATI…) graphic card and HQFS format file or DVD with corresponding SW player. 3D Sync L/R: If you see a discrete or overlapping image while wearing DLP 3D glasses, you may need to execute "Invert" to get best match of left/ right image sequence to get the correct image (for DLP 3D). ...but I'm still at a loss. What is a quad buffer graphics card?

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  • Polished DIY Projector Is Painted Right onto the Wall

    - by Jason Fitzpatrick
    If you’re contemplating building a projector screen but find yourself not entirely unhappy with just projecting right onto the wall, this simple paint-it-on-the-wall upgrade is for you. Check out the above video to see the steps required to patch, paint, and frame a space on your wall to serve as a projection screen. You’ll need spackle, sandpaper, white paint, and some very basic carpentry skills to complete the simple wood frame for your painted-on screen. If you’d like to create a screen using the same technique but make it removable (for adjustments or to take it with you when you move out) you can just as easily use the paint-it-on technique with a piece of hardboard instead of the drywall. [via Hack A Day] HTG Explains: Is ReadyBoost Worth Using? HTG Explains: What The Windows Event Viewer Is and How You Can Use It HTG Explains: How Windows Uses The Task Scheduler for System Tasks

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