T520 External Monitor/Laptop Screen issue

Hello,
I have a T520 with a docking station. There is an external monitor connected to the VGA port in the docking station and I have the laptop set to only use the external monitor. However, when I close the screen of the laptop and put the laptop to sleep, and then when I open the laptop again, the laptop monitor turns on and mirrors on the external. So basically, I need to set it to only use the external every time the laptop starts up.
Is there any fix to keep the laptop screen off while it is docked?
Thanks.

Hmmmm,
Many docked users only use and external monitor. For those not sleeping while docked is the typically setting.
there is the Fn F7 or F8, can't tell which to toggle displays. However, there should be a when docked configuration profile. Have you tried Lenovo support on this as to where it is. It should follow those setting each time it senses its docked.
T520 Model 4239 Intel(R) Core(TM) i7-2860QM CPU @ 2.50GHz
Intel Sandy Bridge & Nvidia NVS 4200M graphics Intel N 6300 Wi-Fi adapter
Windows 7 Home Prem - 64bit w/8GB DDR3

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[Solved] Setting up dual monitor + laptop screen on Alienware M17xR4

Hi everyone,
My apologies in advance if this has been asked before, I was not able to find any relevant information for this anywhere. I have Alienware M17xR4 with nvidia GTX660M graphics card. I also two extra 24" Asus VS248 monitors besides my laptop screen. They are connected via HDMI and DisplayPort (DVI on the monitor) and I want to have all 3 displays working, if that is not possible, then two monitors working side-by-side.
The problem is that I have not been to able to work the two monitors so far, I did at one point managed to make one big screen out of these two monitors but I want a Windows-like behaviour wherein I can drag the two windows between two screens and maximise them on individual monitors. Right now I have completely messed up my display in such a manner that the TTY1 gets stuck on the boot while trying to start the login manager. I can however boot through TTY2 (ALT+F2) and change any configuration.
I have tried deleting xorg.conf and then regenerating it via nvidia-conf but that doesn't help either.
Any help will be greatly appreciated.
Last edited by babbupandey (2015-06-05 05:47:01)

Hello i think i may be able to help with your problem, i had a similar one
I have an alienware m14xr2 and i also tried to do the same but i noticed when using the nvidia card with the nvidia drivers i had a problem, i assume that the external display is connected to the intel card, as it worked perfectly with the intel only driver setup. To fix this issue I use bumblebee, the nvidia optimus alternative for Linux which uses the intel card as primary, allowing me to use both external and internal displays in extended mode, and run what i need on the nvidia card and pull it over with a virtualgl bridge, i even seam to get a performance increase with bumblebee over the regular nvidia drivers running all the time (only when using primus).
https://wiki.archlinux.org/index.php/bumblebee
Here is a link to the bumblebee page i used, though i had problems setting up that i found many alienware users had that can be fixed in the troubleshooting area bellow "[ERROR]Cannot access secondary GPU: No devices detected"
I noted many alienware uses had this problem in my search.
Also the package arandr is an xrandr front end may help in the initial setup as i had problems using the display config built into cinnamon to do this.
https://www.archlinux.org/packages/comm … ny/arandr/
Now hopefully this makes at least dual screen working, i use dual with hdmi, and the vga should work ok for your third screen, but im not sure about the display port, never tried it and i believe it is on the Nvidia card, but there are instructions on the wiki page above you may be able to use about multiple monitors when the output is on the other card that may help, again try the vga first works on mine.
As for fixing your current xorg issues, i also did a thing in my attempts to get a working situation and eventually gave up, in the end reinstalled arch and followed the wiki and it worked, but mabye try removing all of x org and your display environment and re-install as per the bumblebee wiki.
i hope this helps you get multiple monitors, i know how amassing they are to use

External Monitor Not Supported Issue (Sony Bravia)

Lenovo Community
I have been tryign to connect my Lenovo T400 to a Sony Bravia (KDL-32S300 LCD Digital Color Flat Screen) and unable to use the "Projector Only" (to watch recorded movie) video output setting. I am given a non-supported error. Yet I can use either the "Duplicate" or "Extended" video output setting just fine. The Sony Bravia even works fine with a more recent Lenovo T520. I also connect my Lenovo T400 to an older Smsung SyncMaster 930B as an external monitor and that works fine in the rojector" mode too. Can't figure this one out.
Jeff

Are you using the latest available drivers?
Do you have an HD3470 switchable or just the integrated GMA4500?
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[SOLVED] Connecting extra Monitor, laptop screen goes black.

Whenever i connect a additional monitor through HDMI (my only output), the laptop screen goes black. If i do FN + external_monitor switch, then the laptop screen turns on but the external monitor turns off.
If you move the mouse you can feel that the desktop has been extended as i wanted, it is just that one of the screens keeps going black. The gnome display settings show both screens as active, the menu is so minimalistic that there is not much to do.
system
[cristobal@orion ~]$ uname -a
Linux orion 3.11.4-1-razer #1 SMP PREEMPT Tue Oct 8 12:31:50 CLST 2013 x86_64 GNU/Linux
As a side note, the custom kernel is almost identical to the original archlinux one, just that USB 3.0 module is disabled.
some packages
[cristobal@orion ~]$ pacman -Q nvidia-dkms bumblebee bbswitch-dkms nvidia-utils gnome-desktop
nvidia-dkms 325.15-2
bumblebee 3.2.1-3
bbswitch-dkms 0.7-1
nvidia-utils 325.15-1
gnome-desktop 1:3.10.0-1
Any ideas?
Last edited by labotsirc (2013-10-15 18:33:18)

The problem is now fixed,
For some weird reason, this time the gnome settings did work. Must have been some sort of rare bug that now i cannot reproduce.
Last edited by labotsirc (2013-10-15 18:32:53)

Tecra M5: External monitor flickers - grounding issue?

Hi,
I just bought a new Acer Full HD LCD Monitor (P244W) and have tried connecting it to the VGA port of my Tecra M5.
It works, but there's a noticable and increasingly annoying flickering. I tried it with both XP (SP3) and now Vista (SP1) and it happens for both. I have the latest BIOS and NVidia drivers. The actual laptop LCD screen still works fine, its just the external monitor that flickers.
To ensure there was nothing wrong with the monitor, I connected it to the VGA port on the ATI video card on my desktop pc and it displayed fine without any flickering.
After browsing the web for people having similar problems, I've narrowed it down to it being caused by my AC Adapter having a grounding problem as the flickering dissapears as soon as I disconnect the AC Adapter and just run from the battery. It the seems the common solutons to this problem are:
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I tried this and it made no difference. I tried cables both with and without the ferrite magnet/choke thingy's at both ends of the cable and the flickering remained.
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Tried this, but didn't fix it.
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Tried connecting to a wall socket in my laundry, but didn't fix it.
5) Try using a different power extension board and ensure nothing else is connected on it other than the AC Adapter and the monitor.
Tried this, but didn't fix it.
6) Get a 3 prong to 2 prong adapter, so the AC Adapter is no longer grounded.
Most people on the web seem to say this fixes the problem, but I'm not sure how safe it is to leave it this way in the long run. Especially, when stories of laptops catching on fire are becoming more common.
7) Get a generic brand AC Adapter as these sometimes deal with the grounding problem better than the Toshiba AC Adapter.
Again, I'd rather avoid this option as even the generic branded ones are expensive.
8) Remove the battery and run from the AC Adapter on its own.
Tried this, but didn't fix it.
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Tried this, but none of the settings fixed it.
So, what are my options?
Is there a known cause & solution to this problem?
If my laptop is still under warranty, can I get a replacement AC Adapter or something to workaround this problem?
Thanks
Message was edited by: shaneh20
Message was edited by: shaneh20

I finally figured it out. Just for laughs and because it was the only thing I hadn't tried, I tried using a different 3 prong power cable that I had lying around, connected it to my monitor and the flickering dissapeared. *So, the power cable that came with my Acer monitor was dodgy and not my Toshy's AC Adapter like I first thought.*
I'm guessing the dodgy power cable was preventing the monitor from grounding properly, so instead it tried to ground itself using my laptop's power cable, going via the VGA cable
. This would explain why the problem seemed to go away whenever I unplugged my laptop's power cable and also why there was interference.

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I'm using a Matrix DualHead2Go to connect the two external montors to the Mini-DVI port on the Mac
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External monitor blue screen after upgrade

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>reply below
If you are talking about a different message, saying see "below" or "above" will have zero meaning just as soon as someone posts another message
Post the link to the message... this message is http://forums.adobe.com/thread/960405

Laptop Screen Issue

I have a lenovo T540 laptop. The problem is that my laptop screen will not completely work. What happens, beginning from startup, is that the laptop screen works completely normal, shows the usual lenovo loading screen, then once it reaches the point where is is supposed to show the desktop background(where you sign in.) It changes to a dim black. My external screen is black as well as though it was extending the screen. I can click, then sign in, and access all of my files after I change the setting to second screen only, but I would like to be able to use the laptop screen as well.
If anybody could help that would be great.

It's not a virus. If the Geek Squad where you live thinks that then I wouldn't recommend ever taking it back to them.

IMAC 27 inch as external monitor for PC issue

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Thank you.
M

It appears that none of the ATI HD 5XXX series cards are compatible with the iMac unless they have a mini displayport connector (ie eyefinity models and the $700 HD 5970). The ATI HD 4xxx models with the full size display port do seem to work also. I am curious as to whether this incompatibility carried over into the new iMac models....

External monitor with screen spanner

hey
i remember when i first used ssd to expand my desktop on my ibook there were so many different resolutions i could choose from. i tried to higher the resolution on my external monitor now and it doesn't give me even half as many choices. i disabled ssd, restarted my computer, mirrored the monitor to see that its not capable of spanning anymore, look to make sure that the arrangement tab isn't there, and then reinstalled the patch for ssd. it went back to exactly how it was with the same background that was on my external monitor before i disabled the patch. does anyone know how to fix this problem, i would really like to have a higher resolution. i think the problem might be something along the lines of the computer and the mini-vga adaptor, maybe there is away to reset that so it thinks its a new different monitor. sorry if my question is a little confusing. thanks for your help.
-john

i forgot to add this but sometimes when my computer wakes from sleep it goes between 2 different resolutions, sometimes the external monitor will be with the lower resolution with the picture that i had on it and sometimes it will be the higher resolution that i want. sadly the higher one comes up less. does anyone know whats wrong and how to fix it, thanks
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XPS 12 (9Q33, Mid 2013) Laptop Screen Issue

The issue started occurring just few weeks before the end of warranty. My laptop stopped detecting the the internal screen in Windows. When booted to Windows with no other screen connected, the internal screen is blank. If the external screen is connected during booting, internal screen is enabled but with settings like resolution taken from the external screen causing everything to be shifted to left and the external screen is blank. In fact it seems that Windows thinks the external screen is internal as touches on internal screen are still working. BIOS, Windows recovery, Windows booting are correctly displayed on the internal screen - the problem is with Windows logon screen and further. Also when connected to the external screen, Windows doesn't show internal screen in the dropdown in the Screen Resolution menu. When using Ubuntu, the OS correctly recognises and works with internal or both screens. I tried reinstalling vanilla windows, next used Dell Recovery to reset to the initial state and nothing helped - this is why I think this isn't Windows issue but hardware issue that affects Windows. I followed some advices from the Dell support portal and tried to install the firmware update (XK8DT) but got "AuxUpdate MFC Application has stopped working" error and couldn't proceed. Installed all drivers including the BIOS update from the Dell website - nothing helped. Run the diagnostics from F12 menu - they all passed reporting no problems. Restored BIOS defaults - no difference. Run Online Helpdesk tests, no problems detected.
The biggest problem is that I thought the problem is with Windows initially and waited to reinstall it due to being busy at work and not having time to back up all my files and was very disappointed to realise it is not a software issue 3 weeks after my warranty ended.
Here are two videos I recorded to demonstrate the problem:
cs_setInnerHtml('video_ccae9f5a-be4c-402a-82d6-a4c87d2c76a3','');
cs_setInnerHtml('video_cdcdd9d0-3097-4aa1-8d67-7d16970c70cb','');

Since I haven't got any response I will recap the issue:
When I boot the laptop with external screen disconnected:
i can see the BIOS and the Windows loading screen on the internal screen (and Windows recovery etc).
when Windows is loaded i can't see the logon screen or home screen but a blank screen only.
when i connect external screen after Windows is loaded, i don't see anything on the internal and external screen.
When I boot the laptop with external screen connected:
when I boot and the lid is closed, Windows works perfectly fine on the external screen. When I open the lid, the internal screen is still blank, touch works though.
when i boot and the lid is open, Windows is displayed on the internal screen and the external screen is blank. The displayed home screen is broken on the internal screen since it uses the settings like resolution from the external screen, since the external screen's resolution is higher.
In both boot scenarios, when the external screen is connected, the Windows screen properties dialog doesn't show the internal screen, only external.
I reinstalled windows from the recovery partition but it didn't solve the problem.
I run diagnostics from the Dell Support website it all passed.
I updated all drivers including BIOS it didn't help.
I run BIOS diagnostics, they all pass as on this video:
cs_setInnerHtml('video_cf0d6ef7-1ca1-4fe1-8ca1-7551bf272166','');
I don't know what to do, this happened when warranty was still valid, i followed different suggestions from the support page and thought it is a software issue. Didn't reinstall Windows as i had couple of projects behind the schedule and didn't have time to back everything up correctly. After i did reinstall and found that this isn't a software issue, the warranty was already expired by two weeks.

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hi. i have a white macbook (2.0 ghz core 2, 1 gb ram, 10.5.6), and it's been having lots of issues recently: the fan won't stop running, it won't sleep, and the hard drive crashed and had to be replaced. before and after the hard drive was replaced, when i would connect the laptop to an external LG monitor, the wireless wouldn't work. the connection would timeout whenever i would try and connect. this is a fairly recent problem, as it worked fine for a year. restarting the monitor, the laptop, and the router don't help. the only thing i can think of is that it's not working because the laptop isn't sleeping properly--the fan keeps running hard when it's closed and connected to the monitor. still, the other functions work fine when connected to the monitor. if anyone has any suggestions, i'd greatly appreciate them. thanks.

It's possible you're infected with some type of malware. This theory would be supported by the fact that the problem went away, at least for a while when you reformatted, and many times the same malware infection will repeat for the same user who exibits the same behavoir.
A simple test would be to burn and boot from a Linux LiveCD, try using the Linux operating system and see if it exhibits any of the same problems, if it does, then you're likely looking at a GPU issue which would be serious. If it runs fine under linux, then I'd suggest you reformat and install windows and either be more careful about what you do online, or get some better protection.
There are many Linux distributions you can use, one of the most popular that works well with thinkpads is Ubuntu (ubuntu.com). Boot with the option to not make any changes to your computer. This will run the operating system solely from your cdrom drive, performance will be slower, but the point is we want to know if your graphic hardware is working properly or not and this is an easy test.
Good luck, and I hope your problem is only related to software.
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If you have an imac G5, you can color correct it for Pro color matching (NOT the 17, just the 20).
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Here's the link to the display pictures I took: Display Issues
The first thing that would happen is that it would run normally for about 2-3 minutes, then the screen would turn white with close thin vertical lines appearing on the entire screen. When I ran the system tests, the only thing it failed was the Video Memory Check (it gave no failure ID). When doing the testing, either very light vertical lines would appear or three columns of solid vertical lines, but at least the tests would continue to run and I'd have control of mouse.
When I connect an HDMI cable, the display issues appear on my TV.
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Whenever I completely disassembled and reassembled my laptop, it would always run fine a couple minutes before reverting back to the various display issues listed above.
When I replaced the motherboard, since I was told that that might be the problem (the graphics chip or whatever else that's soldered on), it ran fine for a couple of minutes (saw the HP, Windows logo, and it was readying devices... I was excited as hell), but then the screen became distorted showing a mini version of my log in screen in the middle and corner, all jumbled up.
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Hello Melissa_01,
Thanks for posting on the HP Forums!
I understand the computer display is altered and not correct. based on what you have described, it seems like a connector might be messed up, which probably occurred when you dropped it. I would call HP to perform a full service of the computer. You can also send it to a local repair shop.
You can utilize this website to learn how to contact HP appropriately, based on your region: Contact HP Worldwide
Please let me know if you have any other questions or concerns.
Mario
I worked on behalf of HP.

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T520 External Monitor/Laptop Screen issue

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