After enabling Hyper-V on my Windows 10 laptop I have 5 extra generic pnp monitors detected in my display settings panel and in my device manager. When I remove the Hyper-V feature these monitors are gone.  When I now connect an extra display to my HDMI port and I want do duplicate my second screen is never on a same display number. So today I extend display 1 and 6 but tomorrow it can be 1 and 5.  I am using a Dell Precision M2800  Any ideas why this happens?
53714
After a recent update, or after I played around with installing Ionic Framework and Visual Studio 2015 Community Edition, right after a restart, I suddenly have not 2, but several monitors detected by Windows 10.   Screen 1 is my laptop screen, and screen 2 is my monitor, connected via HDMI. When they first appeared, some of them were duplicated in groups of 2, while others were extensions.  When I disconnect my monitor, these screens don't disappear, and even worse - I can't disconnect one of these "screens", so I have to duplicate it with my laptop screen.  I have alleviated all major symptoms of the problem, except for one more: The sound from the speakers embedded in my monitor has also ceased to work.  With all of that, I really don't want to fix any more symptoms, but want to get to the core of the problem and remove all of this junk.  I tried uninstalling Intel(R) HD Graphics 4600 drivers, but they got themselves re-installed and all of this junk re-appeared again. I tried several restarts obviously, and it didn't help. I tried disabling the device from the device manager and it didn't have any effect. Under the "Monitors" section of the Device Manager in Windows I have 4x "Generic Non-PnP Monitor", and 2x "Generic PnP Monitor". I tried restoring from a restore point but that failed miserably (with a memory error right at the start).  What might be causing it? And how can I fix it?
40098
I am using my first VirtualBox VM in order to run Windows 8 Preview on my Windows 7 machine.  It looks like only a few resolutions are available for me to choose.  My physical display is 1600x900, so I'd like to be able to set my Windows 8 VM to that in order to have a fullscreen experience.  How do I add a 1600x900 to the choices I have in the "Screen Resolution" dialog?
74566
I have a laptop with a 4K (3860×2160) display, but there are a lot of problems. A lot of virtualization programs aren't compatible with 4K resolution.  VMware Workstation and VirtualBox don't support 4K display in the list of the display's resolution. How I can set the resolution of the display in a virtual machine to 4K?
54994
Currently, when I boot into Windows, one monitor stays black (undetected), and the other can only display 800x600 resolution.  When I look at Device Manager &gt; Display Adapters &gt; NVIDIA GeForce GTX 970 &gt; General &gt; Device Status, it says "Windows has stopped this device because it has reported problems. (Code 43)".  Details &gt; Problem Code says "00002b". Details &gt; Status says:  01802400 DN_HAS_PROBLEM DN_DISABLEABLE DN_NT_ENUMERATOR DN_NT_DRIVER   When I then click into the Events tab, it says "Device PCI\VEN_10DE&amp;DEV_13C2&amp;SUBSYS_29763842&amp;REV_A1\4&amp;25438c51&amp;0&amp;0008 requires further installation."  I have a EVGA Nvidia GeForce GTX 970 graphics card with the latest drivers (376.19 from 12/1/2016).  My Windows 10 Pro has the latest updates and is at Version 1607, OS Build 14393.576.  My ASRock Z170 Pro4 motherboard BIOS is also updated to the latest version (7.00 from 10/4/2016).  I have dual Acer monitors with 1920x1080 resolution.  I downloaded Ubuntu 16.04.1 LTS onto a bootable USB drive and booted into the Ubuntu operating system instead of Windows. Both monitors immediately worked at full 1920x1080 resolution. So the hardware seems functional! My remaining challenge is to figure out why my video card has stopped working within Windows.  What I Have Tried   I've tried using Display Driver Uninstaller from Guru3d in Safe Mode to delete all drivers and try to install fresh.   I've tried many different versions of the driver dating back more than 12 months. I've tried reseating the card. I've tried moving the card to a different slot. EVGA's phone support told me to reinstall windows (Windows &gt; Reset this PC &gt; Keep my files). Unfortunately, I followed their advice (and now don't have any of my programs), and I still get Code 43 with the EVGA Nvidia card.   What I Have NOT Tried   I would love to try installing this card onto a different Windows 10 computer to see what happens, but I don't have access to any other computers. If you live northeast of Atlanta, let me know. ;-)   I'd appreciate any other ideas you have!.
103916
I got one of those little lilliput external monitors for my laptop. When I close the lid on my laptop, it switches the primary display to external monitor. I want to prevent it from doing this, and instead just blank both screens but not alter the monitor configuration.   I looked at the Power Options "Change what to do when closing the lid" option, but that just gives options for Sleep, Hibernate or Do Nothing. I want to Do Nothing, and prevent the monitor reconfiguration. Any ideas?   Thanks in advance!  Oh, BTW, I'm running Windows 7 Ultimate on an Alienware with the ATI graphics card.   CLARIFY: My reasoning for this question is that I often carry my laptop back and forth between rooms, but not far enough that I'm going to shut it down and restart. Normally I just closed the lid and picked it up. The problem is, now when i close the lid, it switches the primary display to the external, and then when i reopen it, it switches back to the internal monitor. This then winds up futzing up layout things, such as gadgets and sticky notes.
18863
In a desktop I connect monitors through DVI, VGA or HDMI post that is there on motherboard of the CPU box. What interface is there in laptops? Is it the same (with different physical look and feel) Or there is any other standard for laptops ?
107247
I want to connect my laptop (Inspiron 15 5000 Series) to a 4k display. When I read online about this it seems that HDMI 2.0 is a necessaity to handle the large resolutions / refresh rates involved to get full benefits of a 4k display.  Use case: I'm not going to use this to play games. Most of my use-case is editing documents, emails, spreadsheets and some engineering drawings and video (watching not editing).   The goal behind going 4k is to boost productivity by having more things open at once to read side by side.   I looked into the Dell specs and they only mention an HDMI without going into the details of what type or whether it will support HDMI 2.0 / 4K TV.     How do I tell whether my Dell Inspiron Laptop (i7 7500 U processor) supports this?  I looked under the Display Adapters and can see that I have an "Intel HD Graphics 620"  listed.   Will this suffice to tell me if this display adapter will support HDMI 2.0 / 4k display?   Or should I be checking out some other settings?  Thanks!
29325
What is the reason for having so many virtual consoles?  I would understand if there was one in case the GUI crashes but 6 more besides the default? What are they for? I even see no usage for any of them except when the GUI freezes.
100538
I have connected my 22 inch full hd moniter to my pc by HDMI cable . my graphic card is : ATI radeon hd 4550 . there is black border around of my screen like this :     So I run AMD Catalyst Control Center and like below picture I seted scaling options  to 0 and problem solved !     BUT when I reboot or sleep or shut dwon windows , the scaling options returns to it's previous value and the black border coms back and I should set it again !  how can i solve it ?
56045
I have a Ubuntu machine that I use as a Plex and data server. There is no monitor connected to it. This wasn't a problem with Ubuntu 16.04, but now, with 18.04, it is and it shows a black screen whenever I connect using VNC. I've already created the virtual display using the answer to this question:   Create a 20-intel.conf file: sudo vi /usr/share/X11/xorg.conf.d/20-intel.conf  Add the following configuration information into the file: Section &quot;Device&quot;     Identifier &quot;intelgpu0&quot;     Driver &quot;intel&quot;     Option &quot;VirtualHeads&quot; &quot;2&quot; EndSection  This tells the Intel GPU to create 2 virtual displays. You can change the number of VirtualHeads to your needs.  Then I made a shell script (don't forget to set executable) and put that in Startup Applications: #! /bin/bash /usr/bin/xrandr -d :0 --output VIRTUAL1 --primary --auto /usr/bin/xrandr --newmode &quot;1600x900_60.00&quot; 118.25 1600 1696 1856 2112 900$ /usr/bin/xrandr --addmode VIRTUAL1 &quot;1600x900_60.00&quot;  After this, it still shows a black screen when I connect using VNC. BUT, when I run this with SSH: export DISPLAY=:0 xrandr  After that, I can see my desktop in VNC... Any ideas on how to fix this? Also, when I see my desktop after all this, the dock is missing and all the icons are in the same spot.
71163
I am running kernel v4.13.0-36-generic on Ubuntu 17.10 on an HP Omen 15. I have a hybrid NVIDIA Optimus graphics card. I dual-boot Windows 10, which can play audio from the same external monitor over the same HDMI cable I am attempting to use in Ubuntu. I can see video on my external monitor in Ubuntu.  I have tried , but in the former no HDMI audio device appears, and in the latter all HDMI devices show up as unplugged.  I have had the most success using the proprietary nvidia-384 driver installed via the Additional Drivers tab of Software &amp; Updates. Using this driver I am able to see video on my external monitor, play audio through my laptop speakers, and boot reliably.  I have tried using nvidia-387 and nvidia-390 from  with , but I can't even boot or see video on my external monitor reliably using these drivers. I observed that /etc/bumblebee/xorg.conf.nouveau and /etc/bumblebee/xorg.conf.nvidia detected my GeForce GTX 1050 Ti as a discrete graphics card, which I believe is incorrect, but am unsure how to override these settings to indicate that my graphics card is a hybrid.    I installed , but after rebooting was stuck in a boot loop, so I ran sudo nvidia-uninstall.      I disabled Secure Boot.  I tried using kernel v4.15.4, but only found it even more difficult to boot reliably.  I tried . I do not know how to switch from hybrid to dedicated graphics mode as the author of that solution suggests though, so that may be why it didn't work for me.  $ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC295 Analog [ALC295 Analog]   Subdevices: 1/1   Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]   Subdevices: 1/1   Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]   Subdevices: 1/1   Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]   Subdevices: 1/1   Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]   Subdevices: 1/1   Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]   Subdevices: 1/1   Subdevice #0: subdevice #0  $ lspci 00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 05) 00:01.0 PCI bridge: Intel Corporation Skylake PCIe Controller (x16) (rev 05) 00:02.0 VGA compatible controller: Intel Corporation Device 591b (rev 04) 00:04.0 Signal processing controller: Intel Corporation Skylake Processor Thermal Subsystem (rev 05) 00:14.0 USB controller: Intel Corporation Sunrise Point-H USB 3.0 xHCI Controller (rev 31) 00:14.2 Signal processing controller: Intel Corporation Sunrise Point-H Thermal subsystem (rev 31) 00:16.0 Communication controller: Intel Corporation Sunrise Point-H CSME HECI #1 (rev 31) 00:17.0 SATA controller: Intel Corporation Sunrise Point-H SATA Controller [AHCI mode] (rev 31) 00:1c.0 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #1 (rev f1) 00:1c.4 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #5 (rev f1) 00:1c.5 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #6 (rev f1) 00:1c.6 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #7 (rev f1) 00:1f.0 ISA bridge: Intel Corporation Sunrise Point-H LPC Controller (rev 31) 00:1f.2 Memory controller: Intel Corporation Sunrise Point-H PMC (rev 31) 00:1f.3 Audio device: Intel Corporation Device a171 (rev 31) 00:1f.4 SMBus: Intel Corporation Sunrise Point-H SMBus (rev 31) 01:00.0 3D controller: NVIDIA Corporation GP107M [GeForce GTX 1050 Mobile] (rev a1) 03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A PCI Express Card Reader (rev 01) 04:00.0 Network controller: Intel Corporation Wireless 7265 (rev 61) 05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)   A big thank you to anyone who made it to this point. Any suggestions would be greatly appreciated.
56151
I would like to be able to set my "default" monitor to be my external 25' monitor instead of my laptop one when I have my external monitor connected.  Many applications always open on the laptops monitor instead of the "big" one. Currently, the only way I know to disable this behavior is to disable the laptop monitor, however, as I use a laptop stand to bring it higher, Id like to be able to use my laptop monitor as a "secondary" monitor, without dock (launcher) and without any windows opening on it.  The only way for a window to reach it would be to actually manually grab it and drag it over.  Some known applications that ALWAYS open on the laptop monitor and drive me crazy: Slack, Rocket Chat, Thunderbird, Sky, System Settings, Guake (specially annoying since i cant move it).
93790
Background: Just started a new job as a software developer for an amazing company.  I have at my workstation two beautiful 22” LCD monitors.  It just happens, however, that the laptop port replicators we use have one DVI and one VGA connector each; so one monitor is connected via DVI and the other via VGA.  It appears that having these two identical monitors connected over different interfaces screws with the color/brightness/contrast/whatever enough to make a noticeable difference, even after I have reset both back to their default settings.  I have tried manually adjusting away the difference, but just can’t seem to reconcile the difference easily (“okay now the whites are the same, but the colors are off…okay now the desktop colors match, but the whites are off…).  An exhaustive experimentation would entail something like 256^3 (for the RGB) multiplied by 100^2 (for each of the brightness and contrast).  And that is a lot of monitor button clicking.  Without resorting to some expensive , does anyone have a strategy they use to calibrate two monitors to look the same (e.g., “match the reds first, then the contrast…”)?
38155
I use a large monitor as primary and laptop screen as secondary. Is it possible to move the launcher to my big monitor or do I have to turn off my laptop monitor?   "Monitor Preferences" (Launcher search -> "Monitors") does not have a way to set the default/primary monitor. nvidia-settings which I just installed says "You do not appear to be using the NVDIA X driver. Please edit your X configuration file (just run nvidia-xconfig as root), and restart the X server.  sudo nvidia-xconfig says sudo: nvidia-xconfig: command not found.  I guess I don't have an AMD driver because I don't have "AMD Catylist Control Center" in the launcher search.
20266
I'm using Windows 7 + Windows Media Center for my HTPC. It works great except from one annoying issue. Whenever I turn off my TV while listening to music, the music stops for a second or while Windows 7 tries to figure out what monitor is attached. After that second it settles down on a default 800x640. While not a big deal, it is annoying as I don't want to have the TV on while playing music.  Is there anyway to fix the monitor/disable monitor auto-detection on Windows 7 so it would not start recalibrating everything when I turn off my TV?
98319
I put my multi-monitor system to sleep when it's not in use. After I wake it up, all windows are repositioned to a different screen. The closest pattern I can think of is that the windows there were on the main screen switch to a the second screen. It looks like it disconnects the main screen before it goes to sleep which in turn switches all the windows to the 2nd or 3rd screen.   Edit: Here's the video card I'm using --> SAPPHIRE FleX 100322FLEX Radeon HD 6450
65490
Ubuntu Detects 2 monitors when I only have 1. This causes an issue when booting up because it's detecting 2 monitors and by default it is mirroring the display; which is causing a distorted picture since it's trying to create a mirror image on 1 display. xrandr output.... The VGA1 is the phantom monitor and I need to remove it so it boots to LVDS1 and NOT mirrored.   Any suggestions on how to permanently remove VGA1?  :~$ xrandr -q Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192 VGA1 connected (normal left inverted right x axis y axis) 1024x768 60.0 800x600 60.3 56.2 848x480 60.0 640x480 59.9 LVDS1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 0mm x 0mm 1920x1080 59.6*+ 1680x1050 60.0 59.9 1600x1024 60.2 1400x1050 60.0 1280x1024 60.0 1440x900 59.9 1280x960 60.0 1360x768 59.8 60.0 1152x864 60.0 1024x768 60.0 800x600 60.3 56.2 640x480 59.9