I have Ubuntu 16.04 installed.  I have an Intel G33/G31 Express Chip in my Foxconn desktop computer. The Ubuntu does not detect my analogic monitor Samsung SB19B300B.   This monitor has 1366 x 768 max resolution.  In the System setting Display, Ubuntu only shows me the options 1024 x 768 (4:3) and 800 x 600 (4:3) for resolution and shows me "Unknown display" but DOES NOT show me 16:9 relations for 1366 x 768 resolution (60 Hz).   When I run the recommendations of "How to set a custom resolution?" I obtain this results:  root@tomas-OEM:/home/tomas# cvt 1366 768 60 # 1368x768 59.88 Hz (CVT) hsync: 47.79 kHz; pclk: 85.25 MHz Modeline "1368x768_60.00"   85.25  1368 1440 1576 1784  768 771 781 798 -hsync +vsync  root@tomas-OEM:/home/tomas#  xrandr --newmode "1368x768_60.00"   85.25  1368 1440 1576 1784  768 771 781 798 -hsync +vsync  root@tomas-OEM:/home/tomas# xrandr --addmode VGA-0 1368x768_60.00 xrandr: cannot find output "VGA-0"  root@tomas-OEM:/home/tomas# xrandr | grep -e " connected [^(]" | sed -e "s/\([A-Z0-9]\+\) connected.*/\1/" VGA1  root@tomas-OEM:/home/tomas# xrandr -s 1368x768 Size 1368x768 not found in available modes   Use as a temporary solution while finding a better way:  I create a script with the commands:  xrandr --newmode "1368x768_60.00" 85.25 1368 1440 1576 1784 768 771 781 798 -hsync + vsync xrandr --addmode VGA1 1368x768_60.00 xrandr -s 1368x768   I set it as executable and I add it to the "applications at startup"  But I do not think it's good because the start takes more time and works like OS windows performance!
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I tried to use xrandr to set 1680x1050 as a new mode to VGA output, but it says:  sudo xrandr --addmode VGA-0 1680 X Error of failed request:  BadMatch (invalid parameter attributes) Major opcode of failed request:  140 (RANDR) Minor opcode of failed request:  18 (RRAddOutputMode) Serial number of failed request:  35 Current serial number in output stream:  36
119935
How do I change the screen resolution in Ubuntu? I am dual booting Vista and Ubuntu. The preferences tab only has one resolution option for my computer.
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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.
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This question exists because it has historical significance, but it is not considered a good, on-topic question for this site, so please do not use it as evidence that you can ask similar questions here.  While you are encouraged to help maintain its answers, please understand that "big list" questions are not generally allowed on Ask Ubuntu and will be closed per the .     I installed Ubuntu 11.04 on one of my systems and I am using the Unity interface. Unity is working quite well so far but I really miss panel applets for net speed, cpu temp, and system monitor.   These applets are useful for viewing quick info. Unlike 10.10, there is no other way to get this info onto the panel or unity launcher. There are solutions like screenlets and conky but they don't feel appropriate for a clean desktop look.  If you know one then please list out any third party indicators with links so that they can be found.
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I connected an external screen to my laptop, but my desktop didn't automagically extend to it, as it used to do about a year ago (older version of Ubuntu).  I went to the display settings. The screen was listed there (correct resolution, brand name, etc.). But when i put the switch on 'on' and click 'apply', i get this error:   Failed to apply configuration: %s  GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface `org.gnome.SettingsDaemon.XRANDR_2' on object at path /org/gnome/SettingsDaemon/XRANDR   It's been like this for a few months now, but i'd really like to be able to use an external screen/beamer again.  Any ideas?  Thanks.
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I have a new , resolution of 2560 x 1080, connected via DisplayPort to my 2012 MacBook Air 13" via a  that reportedly does have pin 20 wired correctly. I had previously tried connecting via HDMI, but as the manual for the display indicates, Macs are apparently unable to use the full native resolution when connected via HDMI.  A negative experience I'm having is that, when the MBA goes to sleep, the display appears to disconnect. This is noticeable only when waking it: the extra screen blanking of the display automatically reconnecting is almost imperceptible, and would otherwise be of negligible consequence, except for the result that all of my windows that were on that display are resized to fit on the MBA's built-in screen's resolution.  So, I find myself having to constantly re-maximize or rearrange windows whenever I walk away long enough for the screensaver to turn on and/or the computer goes to sleep. This is really aggravating, as I do arrange my windows quite particularly.  My options are seemingly thus:   Replace cable - maybe this is a manifestation of the pin 20 problem, but the display does awaken, just dis/re-connects annoyingly. Replace monitor - maybe something is wrong with this unit or this model?   I don't have another DisplayPort monitor easily accessible, but I might be able to borrow one or at least find one I can use in a store just to demonstrate that it's a DisplayPort or OS X problem and not a unit/model problem.  Tweak something in OS X - maybe there's a setting that I can alter that will disable this behavior, without having to disable screensaver or sleep. Suggestions welcome! Replace MBA - I'm already planning to pick up a new Macbook Pro this month, but I don't know if I'll get it in time to be within the display's return period, should I decide to return the display. I have a feeling this is not a reliable solution, because it's unlikely that the new machine wouldn't exhibit this behavior unless the behavior would change between Thunderbolt and Thunderbolt 2. ??? - this is where you ingenious answerers come in.
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Since installing Ubuntu 12.04, I am experiencing low performance on graphic programs, including video playbacks, etc.   As I have checked the intel driver of mine is already at its latest version. It's really occuring meanwhile playback of videos or web-flash videos (youtube, etc) OS is being logged out automatically and just display an error reporting of Xorg windows for me. I can not actually playback hd videos with the normal frame rate as well. here are some initiation of my graphic card details :  *-display:0                 description: VGA compatible controller    product: Mobile 4 Series Chipset Integrated Graphics Controller    vendor: Intel Corporation    physical id: 2    bus info: pci@0000:00:02.0    version: 07    width: 64 bits    clock: 33MHz    capabilities: msi pm vga_controller bus_master cap_list rom    configuration: driver=i915 latency=0    resources: irq:45 memory:f6c00000-f6ffffff memory:e0000000-efffffff ioport:efe8(size=8) *-display:1 UNCLAIMED    description: Display controller    product: Mobile 4 Series Chipset Integrated Graphics Controller    vendor: Intel Corporation    physical id: 2.1    bus info: pci@0000:00:02.1    version: 07    width: 64 bits    clock: 33MHz    capabilities: pm bus_master cap_list    configuration: latency=0    resources: memory:f6b00000-f6bfffff   and the intel model:  00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07) 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) 00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)   Edited: A little more information :  No LSB modules are available. Distributor ID: Ubuntu Description:    Ubuntu 12.04.3 LTS Release:    12.04 Codename:   precise   Username Info:  Linux amir-laptop 3.2.0-53-generic-pae #81-Ubuntu SMP Thu Aug 22 21:23:47 UTC 2013 i686 i686 i386 GNU/Linux   Xorg info :  ii  xserver-xorg-video-intel               2:2.17.0-1ubuntu4.4                       X.Org X server -- Intel i8xx, i9xx display driver
21161
I realise there are lots of other questions about this, but they are all about the basic setup. I have gotten most of the way there but I have a very specific question: I want to run full Unity on the external (HDMI) monitor, and I don't care if the laptop display is unusable.  I have a Dell XPS 15 with Nvidia GT 540M with Optimus. (DAMN OPTIMUS!!!!) I have Bumblebee installed. I am able to run the system on the laptop display, and I can use optirun to run programs like glxspheres in high-performance mode. When I plug in the external monitor, I see nothing, and xrandr does not detect it ("HDMI1 disconnected (normal left inverted right x axis y axis)").  Here's what I've done so far (working from Bumblebee's  guide). I followed the "extra screen" advice there, so I have edited bumblebee.conf and xorg.conf.nvidia as instructed. Now, if I run:  export DISPLAY=:8 LD_LIBRARY_PATH=/usr/lib/nvidia-current:$LD_LIBRARY_PATH optirun glxspheres   I see the glxspheres demo on the external monitor (without any window dressing). Woohoo!  Now the next step is to shut down Unity on the laptop display and test that glxspheres still works. So I hit Ctrl+Alt+F1 to go to the non-graphical terminal. Then:  sudo service lightdm stop export DISPLAY=:8 LD_LIBRARY_PATH=/usr/lib/nvidia-current:$LD_LIBRARY_PATH optirun glxspheres   Again, I see glxspheres on the external monitor.  Now the Bumblebee guide tells you to do "optirun wmii&amp; (or other like startlxde)" but I don't want to change to another window manager. How can I run Unity on the external monitor?  I tried optirun unity and I got most of the way there. This starts up Unity on the external monitor. I can see the desktop, and the mouse works. I can run other programs inside Unity. There are just a couple of problems:   Certain keyboard combinations don't get detected by Unity -- looks like anything involving Ctrl as well as the Fn key. (e.g.: Ctrl+Alt+T didn't work to get a terminal; Fn+F11 didn't work to change the volume.) Keyboard strokes appear in the terminal as well as Unity. I don't want that since there may be passwords being typed. If I switch to another screen (e.g., Ctrl+Alt+F8), the audio stops working, so this is not a viable solution to #2.   I feel like these three issues are related. I think the main problem is that I shouldn't be directly running Unity, but instead, running lightdm. I've tried optirun lightdm but it doesn't work at all. Hoping someone knows. If not, hopefully at least this question will help people almost-run Unity on an external monitor.
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Some years ago I switched from Windows to Ubuntu. Now Ubuntu 14.04 is installed on my Acer TravelMate 5742G with:   Intel Core i5-460M Nvidia GeForce Gt 420M and Nvidia binary driver version 331.38 15.6 HD (1366x768)   When I used Windows and had to present something in front of some people I mirrored the display of my laptop and the projector. This was really helpful because in most cases the display of the projector was behind me. Unfortunately, this is not possible with Ubuntu anymore. I tried it with various projectors and displays that worked with Windows before.  In cases the resoultion of both screens did not match Windows cutted my screen and added two black bar to the sides of my laptop display. Is it possible to add this very nice feature to Ubuntu? Maybe I should add that Ubuntu offers only one resolution for my laptop display.  Update 1:  Here is an image of my screen setting (in German, but the buttons are still the same):
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(Not talking about  as most other questions do.)  I've installed  in VirtualBox 4.3.10 (not .20, which apparently isn't compatible) but the screen won't grow beyond 80x50 or something like that:    I've gone through the , which ultimately fail with an X.Org error. Well, duh. I need a server box, without a window manager.  How do I make the terminal match the resolution of the VirtualBox window?  UPDATE  I've since installed virtualbox-guest-utils and rebooted numerous times. The "Autoresize Guest Display" option is still disabled.  Has nobody else encountered this problem? Or do you just ssh into the box?
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Here's the scoop: I have a crappy VisionQuest TV that I am currently using as a monitor on my computer running XBMCbuntu. It defaults to 1280x768 which the TV will not display correctly. It appears to be the correct size, but the screen is panned WAY to the left. The TV works fine on 1024x768 with the screen sitting in the right spot. Problem is, I have to change the resolution to 1024x768 every  time I boot up.   Any ideas?
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I have opened up  on launchpad too, but in the interest of getting a bigger response base I am posting it here, hoping someone will pick it up.  Natty doesn't behave very well with the Intel 82845GL chipset. I booted my old machine with Natty today to test drive it. The specs are:  Processor: Celeron 2.4GHz Video: Intel 845GL RAM: 1GB  The first problem is that the display is borked! What do I mean? Well, see for yourself:     If that gets fixed (and it did for a while but is back now), Unity is disabled.   I think these issues are owed to hardware acceleration being disabled...or in other words not the right driver for my hardware. A google search on 'intel 82845GL ubuntu' does return other users having similar problems in the past but I haven't been able to pick out a solution in the many many discussions on the subject- partly owed to my 'linux naivety' I guess...but maybe you can help?
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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?
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I just updated from Ubuntu 10.10 to 11.04 and have an issue regarding the screen resolution. I have Intel integrated gfx chip and my monitor supports resolutions larger than 1024x768. (in 10.10 I've been using 1280x1024) But as soon as I upgraded, I'm stuck with 1024x768 resolution and seems I can't change it.  running xrandr In terminal yields the following results,   Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096 LVDS1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm    1280x800       58.1 +    1024x768       60.0*     800x600        60.3     56.2      640x480        59.9   VGA1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm    1366x768       59.9 +    1360x768       60.0      1024x768       75.1     72.0     70.1     60.0*     832x624        74.6      800x600        72.2     75.0     60.3     56.2      640x480        72.8     75.0     66.7     60.0      720x400        70.1     1280x1024_60.00 (0xce)  109.0MHz         h: width  1280 start 1368 end 1496 total 1712 skew    0 clock   63.7KHz         v: height 1024 start 1027 end 1034 total 1063           clock   59.9Hz   What maybe the problem? Is it a bug? What kind of steps I should take in order to get a higher resolution? (changing xorg.conf maybe?) Any insight is highly appreciated. Thanks in advance.   UPDATE    Screenshot after running xrandr --addmode VGA1 1360x768  As you can see, side bar is not completely visible and Ubuntu logo at the task bar is missing. Also when you open an application, the Task bar of the application (where it should go to the top panel) is missing as well..
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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!.
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We want to set up a 3 screens with an onboard intel graphics adapter and an nvidia card.  Both cards are recognized in lspci   01:00.0 VGA compatible controller: NVIDIA Corporation GT218 [GeForce 210] (rev a2) 00:02.0 Display controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)   And bascially work: If I switch to the console, I see output on the Intel card, X is only running on the Nvidia card.  But when I type xrandr | grep conn I get only one connected port:   DVI-I-0 disconnected (normal left inverted right x axis y axis) VGA-0 disconnected (normal left inverted right x axis y axis) DVI-I-1 connected 1920x1200+0+0 (normal left inverted right x axis y axis) 518mm x 324mm HDMI-0 disconnected (normal left inverted right x axis y axis)   I am on Ubuntu 12.10 (and XFCE) and installed the proprietary nvidia driver.  I was assuming that X maybe has a problem to autodetect both cards, so I thought the following xorg.conf could help:   Section "ServerLayout"     Identifier     "Layout0"     Screen      0  "Screen0"     Screen      1  "Screen1"     InputDevice    "Keyboard0" "CoreKeyboard"     InputDevice    "Mouse0" "CorePointer" EndSection  Section "Files" EndSection  Section "InputDevice"     # generated from default     Identifier     "Mouse0"     Driver         "mouse"     Option         "Protocol" "auto"     Option         "Device" "/dev/psaux"     Option         "Emulate3Buttons" "no"     Option         "ZAxisMapping" "4 5" EndSection  Section "InputDevice"     # generated from default     Identifier     "Keyboard0"     Driver         "kbd" EndSection  Section "Monitor"     Identifier     "Monitor0"     VendorName     "Unknown"     ModelName      "Unknown"     HorizSync       28.0 - 33.0     VertRefresh     43.0 - 72.0     Option         "DPMS" EndSection  Section "Device"     Identifier     "Device0"     Driver         "nvidia"     VendorName     "NVIDIA Corporation"     BoardName      "GeForce 210" EndSection  Section "Screen"     Identifier     "Screen0"     Device         "Device0"     Monitor        "Monitor0"     DefaultDepth    24     SubSection     "Display"         Depth       24     EndSubSection EndSection   Section "Monitor"     Identifier     "Monitor1"     VendorName     "Unknown"     ModelName      "Unknown"     HorizSync       28.0 - 33.0     VertRefresh     43.0 - 72.0     Option         "DPMS" EndSection  Section "Device"     Identifier     "Device1"     Driver         "intel"     VendorName     "Intel"     BoardName      "Internal Intel Graphics" EndSection  Section "Screen"     Identifier     "Screen1"     Device         "Device1"     Monitor        "Monitor1"     DefaultDepth    24     SubSection     "Display"         Depth       24     EndSubSection EndSection   But it is still not working.   Is this generally possible to use two different drivers in X ? Is it necessary to create an xorg.conf manually then? (because Ubuntu 12.10 normally works without the xorg.conf) Are there any errors in my xorg.conf?
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My notebook is connected to a HDTV through a KVM Switch (one other notebook also connected to the same HDTV). The problem seems to be that Ubuntu doesn't recognize the HDTV to be turned on and therefore doesn't enable the VGA output. As far as I understand it has something to do with EDID information not being send trough the KVM Switch.  xrandr won't enable the VGA output through xrandr --output VGA1 --auto, it just keeps showing as disconnected.  Can I somehow force the VGA port to send a signal?  My Graphics Controller:  Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 03)