Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Displayport not detected in windows 7 - stopped working after 6 months

16 Feb 2015   #1
Zorzi

Windows 7 x64
 
 
Displayport not detected in windows 7 - stopped working after 6 months

Hello,
I just want' a clear answer if there is one.

How to make DisplayPort work on (OEM) Win 7 Pro/x64, HP Probook 6470b.

Here is the situation: I don't want 3 displays... heck I just want one to work via Displayport - it did for 5 months...
Situation:
1. i needed external display (only DVI-D Monitor available) .
2. i got DisplayPort to DVI-D cable: DisplayPort hooked to DVI-D input of SamsungSyncmaster 245B worked great!
(up to 1920x1080: no problem: closed the lid an auto.got 1920x1080 on external monitor):
3. I took laptop and hooked it to TV: DisplayPort->HDMI: no problems...
4. One day it "decided" to stop working... and I don't think the DisplayPort is broken: something else is (according to all troubles people go through I would say I was very lucky to get away with this: e.i. getting the pisture from DisplayPort..) - in fact it's not broken: when tested on Ubuntu it works, so HW is ok.
5. I reinstalled intelHD 4000 drivers to new ones (v.dec2014) - even though the things worked with old one (v.jul2013), going to restore points,...
6. Tried...well almost all there is to be found on internet (where else?) - nothing works, though DisplayPort works with no problem on ubuntu (makes you think...doesn't it?)
7. Tried DisplayPort to VGA^ - vga monitor not even detected, nothing... as with dvi monitors, or hdmi (TV)
(^ which works perfectly (i'm "lucky" i guess) on other laptop (yes, hp proobook just year or two older than the one in question: with plain Intel HD (not hd4000) - same OS (win7 pro x64)

*I know it maybe older version of monitor. but hey... it works with ATI Radeon (5450hd from desktop pc): so: it's not monitor fault
** VGA out works ok all the time - but i cannot hook dvi monitor to it (and i don't want to!).

So it seams: Display Port is somehow not even in Win7 picture: like it's not there - but that's what driver's do, don't they? Or is there a super hidden switch in Windows to enable DisplayPort? (I don't see it...).
again: It's not HW: it works with Ubuntu (i'll keep saying that, so it's clear that it's windows/intel (later one?) thing: i don't think it's HPs error, really).

1. How to check if (maybe) DisplayPort doesn't work in wondows? And what to do?? - it works with Live ubuntu so it's not HW failure...
2. Is there a SIMPLE solution? "Simple EXE" to sort things out? (should be by now, or Intel & HP(?) just don't care?)
3. Would win 8.1 solve anything? - I'm not really eager to migrate because win7 is just ok it is: no need to chnage for now - waiting next Win OS (10?): so, planning to skip win8, as I did skip the vista failure (excuse my language - but let's be real: it was big fail)
4. Is there a separate DisplayPort driver? (if so: I did not found it on HP 6470b download page... - maybe (if there is one) it got corrupted?)
5. Is "active" adapter any good? - would that work? (eg. "BIZLINK Display Port DVI-D DualLink Adapter USB Powered Cable?") - but the "problem" is that I'm ok with 1920x1080 (don't need higher res. for now) - and I have a cable that works ok- tried on other laptop...
6. USB to DVI?.. yes i'm that desperate - does it work like plugging monitor to VGA/DisplayPort? - maybe odd question, but i'm not familiar with this adapters and really don't know what to expect? (does it go to 1920x1080?)



I'm so tired of hours spending reading: that I should even reprogram EDID on DVI monitor: come on.. but it would not change anything: since it does not get detected by DisplayPort - and monitor works with dvi signal from other PC...

Please, give me some feedback: I'm not re-installing OS because of this: it's.. plain stupid solution: and I'm not sure if it's going to work again anyway - or if, for how long?...
Long post I know: just please don't give me: reboot with all cables plugged in or go into safe mode..

Thank you: looking forward for possible solution...



My System SpecsSystem Spec
.
17 Feb 2015   #2
Zorzi

Windows 7 x64
 
 

Anyone?

Displayport? How to check it... if it's installed ok etc?

Btw: anyone knows any good USB to HDMI/DVI-D adapter (at reasonable price)?

Thanks!
My System SpecsSystem Spec
19 Feb 2015   #3
Zorzi

Windows 7 x64
 
 

So...either nobody uses Win7 and/or DisplayPort then...
My System SpecsSystem Spec
.

Reply

 Displayport not detected in windows 7 - stopped working after 6 months




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
Windows installer has stopped working or setup.exe has stopped working
HI, I'VE INSTTALED WINDOWS 7 PROF.ON MY PC. I M TRYING TO INSTALL WINDOWS7ULTIMATE BY CLICKING ON SETUP.EXE AN ERROR MASSAGE APPEARED SAYING: THEN I TRIED TO INSTALL WINDOWS 8 ON MY PC.. BUT THE ERROR MASSAGE APPEARED SAYING SAME THING AND ALL OTHER SETUP IN THAT DRIVE ARE SAYING SAME...
General Discussion
Windows Update Not Working after months of being off
Hello there. I recently changed my settings for Windows Update, to let it check for updates, but now it always asks for a restart. I tried almost every solution, i don't know what to do, i need SP1 for SQL Server 2012 to work, but it's not installing. I even downloaded the update from microsoft's...
Windows Updates & Activation
BOTH my Usb hdd's have stopped working on windows 7
HI. I can use a usb pendrive, or a memory card reader in my usb. But both of my protable usb hard drives are not showing when plugged in. I have tried a usb 'Y' cable. but no good. Both drives work on my netbook..
Hardware & Devices
Error that has stopped me updating for 4 months!! HELP ME SP1 W7!!!
================================= Checking System Update Readiness. Binary Version 6.1.7601.21645 Package Version 13.0 2011-09-04 22:11 Checking Windows Servicing Packages Checking Package Manifests and Catalogs Checking Package Watchlist Checking Component Watchlist Checking Packages
Windows Updates & Activation
External eSata drive stopped being detected
Hi, I'm a bit kind of desperate now. I purchased a 2TB Western Digital Sata drive (WD20EARS) and an enclosure with USB2 and eSata interface (independent power supply). Everything was ok for almost 2 months till today it just suddenly stopped being detected at all. I wasn't doing anything in...
Hardware & Devices
Microsoft: Windows 7 RC in 2 Months, RTM in as Early as 6 Months
:D Microsoft: Windows 7 RC in 2 Months, RTM in as Early as 6 Months - Official confirmation of RC and RTM deadlines - Softpedia
News


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 09:23.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App