Mini display port wont work.

I have bought an mini displayport to DVI adapter for my x1 Carbon, but when i plug it in the external display is just black. Do it need to some kind of special mini display adapter?
I have tryed to BIOS update, installed all the reqiuerd drivers and latest monitor driver. Nothing is working...
Does someone have any sugestion?
Best Regards
Martin

Hi Martin,
Welcome to Lenovo Community!
As per the query we understood that you are facing issue with Display port on your ThinkPad X1 Carbon.
Have you checked with this ‘Lenovo Mini-DisplayPort-to-DisplayPort Cable = 0B47091’.
Hope this helps.
Best regards,
Hemanth Kumar
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Dell XPS 15 l502x mini-Display Port stopped working after update.

After the updates on the 11-10-2014 my mini-display port (which worked great previously and is part of the Intel Graphics) stopped working.
Am running Arch 64bit with Slim + E19
The symptoms are:
1. Detects monitor from the laptop and xrandr throws no errors
2. Enlightenment thinks the screen is connected and it appears in the screen setup as on.
3. The monitor no longer recognizes that there is a laptop plugged in and just stays off...
kernel.log
Oct 13 10:10:19 localhost kernel: [drm:cpt_set_fifo_underrun_reporting] *ERROR* uncleared pch fifo underrun on pch transcoder B
Oct 13 10:10:19 localhost kernel: [drm:cpt_serr_int_handler] *ERROR* PCH transcoder B FIFO underrun
Oct 13 14:09:35 localhost kernel: [drm] Wrong MCH_SSKPD value: 0x16040307
Oct 13 14:09:35 localhost kernel: [drm] This can cause pipe underruns and display issues.
Oct 13 14:09:35 localhost kernel: [drm] Please upgrade your BIOS to fix this. (Will look for an update...)
lspci | grep Intel | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
Here are the packages that I think I may have to swap around...
[2014-10-11 19:16] [PACMAN] removed ati-dri (10.2.8-1)
[2014-10-11 19:16] [PACMAN] removed intel-dri (10.2.8-1)
[2014-10-11 19:16] [PACMAN] removed nouveau-dri (10.2.8-1)
[2014-10-11 19:16] [PACMAN] removed svga-dri (10.2.8-1)
[2014-10-11 19:16] [PACMAN] removed lib32-intel-dri (10.2.8-1)
[2014-10-11 19:16] [PACMAN] removed lib32-nouveau-dri (10.2.8-1)
[2014-10-11 19:16] [PACMAN] upgraded apache-ant (1.9.4-2 -> 1.9.4-3)
[2014-10-11 19:16] [PACMAN] upgraded libdrm (2.4.56-1 -> 2.4.58-1)
[2014-10-11 19:16] [PACMAN] installed mesa-dri (10.3.0-3)
[2014-10-11 19:16] [PACMAN] upgraded wayland (1.5.0-1 -> 1.6.0-1)
[2014-10-11 19:16] [PACMAN] upgraded mesa (10.2.8-1 -> 10.3.0-3)
[2014-10-11 19:16] [PACMAN] upgraded mesa-libgl (10.2.8-1 -> 10.3.0-3)
[2014-10-11 19:16] [PACMAN] upgraded libva (1.3.1-2 -> 1.4.0-1)
[2014-10-11 19:20] [PACMAN] upgraded linux-lts (3.14.19-1 -> 3.14.20-1)
[2014-10-11 19:27] [PACMAN] upgraded xf86-video-ati (1:7.4.0-3 -> 1:7.5.0-1)
[2014-10-11 19:27] [PACMAN] upgraded xf86-video-intel (2.99.916-2 -> 2.99.916-3)
As far as I can see my options are to try and roll back via pacman -U in my /var/cache... or to figure out how to make my Nvidia HDMI output work using Synergy...
I suspect this is some type of driver regression (kernel/mesa/xorg) but am not sure as I have not seen much information about this issue online.
Unless someone has a better idea... when I get time to try to resolve the issue I will update this post.
Ok I missed this from dmesg:
[11671.333426] WARNING: CPU: 0 PID: 486 at drivers/gpu/drm/i915/intel_dp.c:137 intel_dp_max_link_bw.isra.9+0x3e/0xa0 [i915]()
[11671.333428] invalid max DP link bw val 0, using 1.62Gbps
[11671.333430] Modules linked in: ctr ccm bnep ipt_REJECT xt_conntrack iptable_filter xt_CHECKSUM xt_tcpudp iptable_mangle ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables x_tables uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core fuse v4l2_common ecb videodev media btusb bluetooth 6lowpan_iphc coretemp hwmon intel_rapl x86_pkg_temp_thermal intel_powerclamp joydev mousedev snd_hda_codec_hdmi kvm_intel arc4 snd_hda_codec_realtek snd_hda_codec_generic kvm iwldvm snd_hda_intel snd_hda_controller crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel cryptd snd_hda_codec r8169 iwlwifi snd_hwdep dell_wmi snd_pcm sparse_keymap iTCO_wdt snd_timer snd mii iTCO_vendor_support dell_laptop microcode pcspkr dcdbas dell_smo8800 psmouse serio_raw
[11671.333467] thermal soundcore i2c_i801 shpchp evdev mac_hid mei_me mei lpc_ich wmi processor ac battery pci_stub vboxpci(O) vboxnetflt(O) vboxnetadp(O) vboxdrv(O) udlfb syscopyarea sysfillrect sysimgblt fb_sys_fops tun nfs lockd sunrpc fscache vhba(O) bridge stp llc brcmsmac cordic brcmutil led_class bcma mac80211 cfg80211 rfkill bbswitch(O) ext4 crc16 mbcache jbd2 sd_mod sr_mod crc_t10dif cdrom crct10dif_common atkbd libps2 ahci libahci ehci_pci libata xhci_hcd ehci_hcd scsi_mod usbcore usb_common i8042 serio i915 button intel_gtt i2c_algo_bit video drm_kms_helper drm i2c_core
[11671.333506] CPU: 0 PID: 486 Comm: Xorg.bin Tainted: G W O 3.16.4-1-ARCH #1
[11671.333509] Hardware name: Dell Inc. Dell System XPS L502X/0YR8NN, BIOS A04 03/25/2011
[11671.333511] 0000000000000000 00000000c0982604 ffff8800b2b4fa80 ffffffff8152ba1c
[11671.333515] ffff8800b2b4fac8 ffff8800b2b4fab8 ffffffff8106e45d ffff880037c92000
[11671.333518] 0000000000000000 0000000000000004 ffff88014e2d8c00 ffff8801b5a2f800
[11671.333521] Call Trace:
[11671.333528] [<ffffffff8152ba1c>] dump_stack+0x4d/0x6f
[11671.333534] [<ffffffff8106e45d>] warn_slowpath_common+0x7d/0xa0
[11671.333537] [<ffffffff8106e4dc>] warn_slowpath_fmt+0x5c/0x80
[11671.333553] [<ffffffffa00f543e>] intel_dp_max_link_bw.isra.9+0x3e/0xa0 [i915]
[11671.333566] [<ffffffffa00f5539>] intel_dp_compute_config+0x99/0x660 [i915]
[11671.333579] [<ffffffffa00da214>] __intel_set_mode+0xb14/0x1670 [i915]
[11671.333608] [<ffffffffa00dd4e6>] intel_set_mode+0x16/0x30 [i915]
[11671.333638] [<ffffffffa00de623>] intel_crtc_set_config+0xa83/0xdd0 [i915]
[11671.333666] [<ffffffffa0025fa1>] drm_mode_set_config_internal+0x61/0xe0 [drm]
[11671.333690] [<ffffffffa002984b>] drm_mode_setcrtc+0x2ab/0x5b0 [drm]
[11671.333712] [<ffffffffa0019b9f>] drm_ioctl+0x1df/0x680 [drm]
[11671.333728] [<ffffffff811d4db0>] do_vfs_ioctl+0x2d0/0x4b0
[11671.333737] [<ffffffff811df4ee>] ? __fget+0x6e/0xb0
[11671.333745] [<ffffffff811d5011>] SyS_ioctl+0x81/0xa0
[11671.333753] [<ffffffff815317a9>] system_call_fastpath+0x16/0x1b
[11671.333758] ---[ end trace 64be8044e26ca3c5 ]---
Last edited by scmurcott (2014-10-13 19:12:07)

So I downgraded those packages and the kernel with no luck.
I tried to get the HDMI working via Synergy... and failed
I then tested the Display Port on Windows and it did not work there either - exhibiting the same symptoms as Linux - the OS sees the monitor but no data was transferred.
So I ended up using one of my Display Link monitors at work... the USB monitors were ok, just an irritation with a flickering mouse.
I hope it is the miniDP>HDMI adapter and not the port... very frustrated by this problem.
I hope to test another adapter soon.
I think as nobody else is experiencing this issue that it may well be hardware/firmware related.
Hope there is a happy end to this post but not feeling so positive right now.

HDMI to Mini Display Port not working?!?!

Hi,
I use my macbook Air (latest one with mini display port) to watch movies on my TV. I use a hdmi to mini display port adapter cable which worked perfect for about 6 months. Yesterday, I plugged my mac in and nothing appeared. I have no idea why- no settings have been changed.
As usual, the screen goes blue and then back to normal but the TV screen is plain black. In the Display settings, the 'arrangements' tab is missing where I can set mirro displays things. I tried bying a new adapter and trying this with my sister's macbook pro but it still doesnt work.
Any ideas on why this has happened & to how I can fix it?
Thanks for your help

This is probably NOT the solution you're looking for, but use a 3.5mm to 3.5mm (headphone jack) cable to transmit sound. I use stereo speakers with my setup, sounds far better than the TV.

Apple Mini Display Port NOT working at resolutions over 1600X1200!

Problem:
Apple Mini Display Port does NOT work at resolutions over 1600X1200 on NON Apple Cinema Displays.
That means if you own any other brand of monitor such as NEC, Lacie, etc. you will NOT get native resolution on your 24 inch monitor as it is stuck at a maximum resolution of 1600X1200.
This story was mentioned on "Macbreak Weekly" show 4-14-2009. I have since checked with a few people and it would indeed seem to be true at this point.
I REALLY hope a solution from Apple comes soon and this is not some new policy of theirs. If so, it may be the last Mac Pro I will or can ever own. The reason is I do a lot of 3D work with C4D, Vue, Modo and Photoshop CS4 so I MUST have a monitor like the high-end ones from Lacie that have 100% color gamut and Adobe RGB. I can NOT be tied down to an Apple Cinema display due to that work. At this time, it seems this means I would only get 1600X1200 resolution on that 24 inch monitor.
Has anyone else confirmed this too and if so what the heck is Apple thinking or better still going to do about it? I LOVE my Mac Pro but if they start forcing displays on us then I won't be buying another Mac, it's just that simple.

Thanks, but I think two things may be different in that setup.
1. If I understood correctly, it's a first gen without a "Mini Display Port" and
2. It was a laptop not a Mac Pro with a video card.
I think it has specifically to do with either one or both of the above combos. In particular I think it's the video card they are putting in them.
I am not sure if a new 2009 Apple laptop with a Mini Display Port connected to a NON Apple display would have an issue or work like yours does now. It would be interesting to get to the bottom of this for sure because it REALLY hurts people like myself that are into 3D design.
I will try to get back on this once I continue to find out more details.

Mini display port not working in xp

Got windows xp partitioned onto macbook pro, and everything else works fine, but trying to use the mini display port does nothing when connected to a tv. any ideas? am I missing a driver?
I looked around and other sources say that it should see the MDP as an external monitor but the only display option I get is the graphics card itself.
please leave some advice, I really want to play some fallout on the big screen

omg nm, figured it out, went into the nvidea settings and set it up there

Mini Display Port Not Working, WHY?

When I first got my MacPro I tried to display two monitors and couldn’t as the Mac didn’t detect anything fed from the Mini Display Port.
When connecting Either my BenQ M2700HD, BenQ FP222W or My Wacom Cintiq 12wx to the MAC via the Mini Display Port none of them were detected by the MAC. However all 3 work through the DVI Port on the MACPRO itself.
I have tried 2 HDMI>MiniDisplayPort (officail apple) adapters in order to rule out the adapter itself and neither fixed the problem.
Therefore I can only guess that its the Mini Display Port’s internal connection.
Any help you can provide would be greatly appreciated.

I havent yet opened up the computer as im hoping i can solve the problem without doing so.
It's a mac pro so all it takes to get inside is to take the lid off, right? Not a big deal. But so far, for this problem, I'm not sure what you would plan to do whle "in" there.
I checked all external connections and they are all 100% secure and fully seated.
Ok.
I have notice that when i turn the 2nd monitor on/off (on the monitor itself) the 1st monitor flashes blue.
Why would it be doing this and still not detect the monitor itself?
Because a video card problem? Maybe you need a replacement. I supose it's possible for the mDPs to not wiork even though the DVI does.

Sound Out from Mini Display Port Not Working on a Particular TV

I have a Macbook Pro that I purchased new a few months ago. I use an adaptor to run the display out of the Mini Display port to an HDMI cable on my TV, sound and all. I have also used it while traveling to do the same thing on hotel TVs with HDMI ports.
When I do this, I have to go into System Prefs>Sound and specify the sound output should go to the model of TV that is displayed in the prefs. It always seemed to detect the model of TV when I have it hooked up.
I am staying in a house where I can't get the sound to go out of a Toshiba TV. It shows up in the sound prefs, but I can't ear a thing. The only way I can hear sound is if I tell it to use the internal speakers.
What am I doing wrong when it comes to the Toshiba?
Thanks.

Greetings,
But I wanna know what is the best way going ahead to get this fixed.
Thats up to you. Given the testing you have performed the only additional items I would suggest would be:
Reset the SMC and then test: http://support.apple.com/kb/HT3964
Reset the PRAM and then test: http://docs.info.apple.com/article.html?path=Mac/10.6/en/26871.html
You can make an appointment with a Mac Genius at an Apple store, contact AppleCare via phone, or contact an Apple Authorized Service Provider for assistance.
Calling AppleCare and having them send you a box for the computer would be the fastest method of repair (usually) as an AppleStore or an Apple Authorized Service provider may not have the parts in stock. You could certainly take the computer in to have them look at it and tell you what the repair time frame would be.
Also, if they decide to replace the part, will I be shelling out any money inspite of the coverage ?
If you would like to read the warranty of the Macbook Pro, Hardware warranty details are found here: http://www.apple.com/legal/warranty/
The warranty covers manufacturing issues. As long as the failure is due to a hardware component failure and not outside influence then there is no out of pocket expense.
If the port has failed because a 1 year old shoved a nail in it, rain blew in the window and shorted out the logic board, SUV backed up over the computer and broke the port, then the warranty will not cover it. They will contact you and let you know that the repair is not covered and ask if you want it repaired at your own cost or you can pick up / have the computer sent back to you.
If for some reason you find out the issue is not covered then you could take it up with your insurnace company (renters / home owners etc) or your credit card company if you purchased the computer with a credit card. Some credit cards offer hardware coverage for purchases.
Best of luck.

GS70 miniDP/mini Display Port not working

Hi forum,
I recently got a GS70 with 860m graphics that runs win8.1. I can use the HDMI interface with no problems with various monitors. The displays are detected both by the intel software as well as the "change screen resolution" config of windows.
When I plug a monitor into the miniDP ports however the displays are not detected by the system. I tried this with a 27" Samsung as well as a 30" Dell U3011. I used a miniDP2HDMI cable, a miniDP2DP cable and an active miniDP2DVI adapter, none of them works. I am using the latest Nvidia drivers, they have been updated online through the nvidia experience stuff.
I tried to troubleshoot this by using an Ubuntu live CD with the same results. HDMI works out of the box as soon as I plug a cable in. Nothing happens when I use the miniDP cable though.
I also noticed that one cable (miniDP2HDMI) I can put fully into the miniDP port while the other one(miniDp2DP) sticks out 3-4mm and does not seem to go into further even with force. They look alike and the packaging clearly says "miniDP..." though.
How can I fix this?
Thanks.

Quote from: johannes.haase on 09-January-15, 20:16:14
Hi forum,
I recently got a GS70 with 860m graphics that runs win8.1. I can use the HDMI interface with no problems with various monitors. The displays are detected both by the intel software as well as the "change screen resolution" config of windows.
When I plug a monitor into the miniDP ports however the displays are not detected by the system. I tried this with a 27" Samsung as well as a 30" Dell U3011. I used a miniDP2HDMI cable, a miniDP2DP cable and an active miniDP2DVI adapter, none of them works. I am using the latest Nvidia drivers, they have been updated online through the nvidia experience stuff.
I tried to troubleshoot this by using an Ubuntu live CD with the same results. HDMI works out of the box as soon as I plug a cable in. Nothing happens when I use the miniDP cable though.
I also noticed that one cable (miniDP2HDMI) I can put fully into the miniDP port while the other one(miniDp2DP) sticks out 3-4mm and does not seem to go into further even with force. They look alike and the packaging clearly says "miniDP..." though.
How can I fix this?
Thanks.
have you tried to press fn + F2 button? some times some displays wont give signal untill you press that button and then laptop one will either go black or go off then on again and then external monitor will wake up and give picture so try it if you havent and then return back to us if it works or not.

Mini display port not working?

I am trying to connect my late 2009 iMac to an extenal monitor. Been to store twice now and both adapters are not fitting??? Am I missing something here...
Thanks

Yup you are missing something what I don't know, however the first thing is learning how to insert a photo into this forum. Use the camera icon you see when you are replying or creating a message and follow the prompts. The second is following Apple's instructions for connecting an external display, which is located at:
support.apple.com/kb/HT5019

Thunderbolt mini display port cable to HDMI not registering

I recently purchased a 6" mini display port to HDMI Cable. When I connected my macbook to my HDMI on my TV the macbook pro does not show the screen as a display option. When I go to system prefrences and under displays the tv is not showing up under arrangements. The only options I have is Display and color, I do not have an arrangement option. My TV doesn't seem to see the computer either.
I have a thunderbolt port but the cable says it's for a mini display port but works with Thunderbolt, I've used similar mini display cables before with the thunderbolt with no issues. I'm on an early 2011 macbook pro running 10.6.8
Thanks!

You may have better luck getting a response/answer if you post the question in the MacBook Pro discussion here.

Mini Display ports - thunderbolt compatibility?

I have a 3.33 Ghz 6 Core Mid 2010 Mac Pro with 2 mini display ports.
I'm looking to buy a 27" Monitor.
If I buy one of the (now old) NON-Thunderbolt Apple Cinema Displays, I can assume it will work with my machine. However, will the Mini Display Ported Monitor work with a Thunderbolt equiped Mac at some time in the future, when my present pride & joy is past it?

What does the Apple 27" offer that you want or need or more importantly, do, that the one you are looking at cannot? You want someone to predict and speculate on future product support?
What is known -
Thunderbolt (originally codenamed Light Peak[1]) is an interface for connecting peripheral devices to a computer via an expansion bus. Thunderbolt was developed by Intel and brought to market with technical collaboration from Apple Inc. It was introduced commercially on Apple's updated MacBook Pro lineup on February 24, 2011, using the same port and connector as Mini DisplayPort
The Intel and Apple implementation of the port adapter integrates PCI Express data and DisplayPort data, allowing them to be carried over the same cable simultaneously. A single Thunderbolt port supports hubs as well as a daisy chain of up to seven Thunderbolt devices; up to two of these devices may be high-resolution displays using DisplayPort.[7]
Thunderbolt is based on the Mini DisplayPort connector developed by Apple.
This is electrically identical to "normal" DisplayPort connectors, but uses a smaller connector that is more suitable for use on laptops and other consumer devices. It is expected that Thunderbolt's use of this connector will drive wider acceptance.
Because the PCIe bus does not carry video data, it is unclear whether a standalone PCIe card could offer a Thunderbolt port. The Intel Thunderbolt Technology Brief does not give a conclusive answer.[2]
Intel disclosed documentation where video stream is sent to a dual-thunderbolt controller, with the video stream being only sent to one of the Thunderbolt Port, giving the assumption that video stream is not mandatory on Thunderbolt implementation.
Thunderbolt can be implemented on PCIe graphics cards, which have access to DisplayPort data and PCI express connectivity, or on the motherboard of new devices, such as the MacBook Pro.[7][21][38]
Thunderbolt controllers on the host and peripherals fold the PCIe and DisplayPort data together and unfold them after they exit the cable.[2]
http://en.wikipedia.org/wiki/Intel_Thunderbolt

Mini Display Port To HDMI Cable Not Working?

Dear members,
i have a mid 2010 13" macbook pro which i have been using a mini display port to HDMI cable which also carries audio for for years now.
I went to use it last night and have to pull the cable out and plug it in a few times to get it to work.
Tonight it just wont work at all no matter how many times i pull the cable out and plug it in again!
Before i use to just connect it and boom, screen would go off then on and it would also mirror on to my TV.
My TV is a 32" Toshiba TV, i tested the HDMI ports, working fine. The mini display port to HDMI cable works fine on my 42" TV downstairs.
Any one know of a fix for this?
Thanks.

Hi DjTimmyM,
Thanks for visiting Apple Support Communities.
Start with the steps below to troubleshoot issues with video out from your MacBook Pro:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/ht1573
Reset the system
You can reset the Mac's parameter RAM and SMC.
Best Regards,
Jeremy

Macbook Pro with Retina wont detect monitor on mini display port to dual-link dvi adapter

So after reading Jeff Atwood's post, I decided to jump and give it a shot. So this week I got my monitor in from Korea, and I already had my Apple mini display port to dual-link dvi adapter, hooked everything up - and nothing. Monitor doesnt show a signal, and no display shows up in user preferences.
To verify the monitor actually works, i plugged it into my windows box - and boom, right away there it is in all its glory. So I called apple support, after spending about an hour going through the "are you sure its plugged in stuff", the tech finally admitted to being stumped and blamed the adapter. Not to be deterred, I then went to my local apple store and talked them into trying their adapter to rule out the adapter - regardless of the adapter, the mbp wont detect the monitor.
Just for fun, i tried my old single mini displayport to single dvi, the monitor is recognized, but that obviously cant drive the right resolution, so i just get a backlight. Same deal when i try the hdmi port with a hdmi to dual-link dvi adapter on the end of it. Also tried display port to the same hdmi with adapter on it (the joys of working in a dev shop - cables to test everywhere)
I have read / tried a ton of things:
re-installed / uninstalled air display, just to be sure it was gone. went through all my apps just to see if there is anything like this i could think would be effecting it
install gfxCardStatus to ensure i am on the nvidia (discrete) and not the internal card
Played with different settings on SwitchResX to try to force the res over hdmi - no love - os rejected each one
I bought the monoprice adapter wondering if it was just the apple adapter since the apple adapter has been panned, no love from it either
Reset the PRAM countless times
I have two other adapters coming in to test with in a day or two - maybe one of those will be magic, but at this point i kinda think its software on the mac. My Spec:
I am running Mountain Lion with all the latest updates
New MBP with Retina (2.6g processor, 16gig ram, nvidia video card)
Here is the ebay link to the monitor
Now the other weird thing is pretty much universally these auctions say the monitors cant be run on a laptop - which makes no sense to me, because its just a connection, if the video card is strong enough (which my machine better be) it shouldnt matter the source. The listing mentions its a "by-pass" monitor, which is something I and google have never heard of.
So any sage words to make my day?

Magic was, I have to have the adpter plugged into the mac, let it recognize all with the monitor powered off.
then power on the monitor, and boom gloriousness
For future generations, setup that works:
1) MacBook Pro with Retina
2) Monitor From Korea (example auction)
3) Accell Mini DisplayPort to Dual-Link DVI Active adapter (amazon)
4) Boot mac, plug in adapter, let it recognize the monitor, power on monitor

Mini-display port to hdmi cable not working consistently

I have a MacBook Pro (15-inch, Early 2011) 2GHz Intel Core i7, 4GB, Intel/ATI combo video - Yosemite 10.10.2. I purchased the monoprice 15" mini-display port to hdmi cable and it worked perfectly for about 1 month or 2. Now when i plug in the cable, the MBP doesn't detect that I have a second display connected at all. I assumed the cable died so I tested it on my iMac. The cable worked. Also when I try my Monoprice 15" mini-displayport to VGA cable, that works on my MacBook Pro. I can't figure out what is causing my MacBook Pro to "forget" how to detect this cable. Anyone out there experiencing the same? I tried PRAM reset to no avail. Any suggestions would be great.

Hello David,
If you are having issues using your external display with your MacBook Pro, check the article below to continue your troubleshooting with resetting the SMC as well. Work your way down the article if you still are having issues after that.
Apple computers: Troubleshooting issues with video on internal or external displays
https://support.apple.com/en-us/HT201177
Regards,
-Norm G.

Mini display Port To HDMI not fully working with tv

Ok So, I am using and 13" macbook Pro Alu (march 2009) and a 40" Samsung LED 120hz 1080p screen (Brand spankin New!). I am connecting the two between a dynex mini Display port adapter to HDMI out. Then have an HDMI cable Running from the adapter to the TV.
My Problem:
When i connect the two together The output to the TV doesn't Fit the whole Screen. There is about a 4 inch Gap on the sides that are just black and about an 1 1/2 inch gap on the top and bottom. This was how it was on my old tv and was hoping it would just work better on the new tv. The old tv was 720p 32 inch toshiba. but it is very frustrating because i use ableton and it defeats the purpose of having such a large display if it doesnt work properly. ive read a couple forums that were similar but non were the exact problem nor the right solution. I downloaded switchresX and it gives me higher resolutions to output but it does not change the gap. Im starting to think it may be a setting on the tv but i have yet to find anything that with fix it on either the settings on the TV nor the computer. please help thank you

When you're in Extended desktop mode (not mirror), and you Open System Preferences > Display, there should be a preference on your main screen and one on the TV. The one on the TV should have the underscan setting like this:

Mini display port wont work.

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