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Thread: I can't view my laptop on TV

  1. #1
    Join Date
    Mar 2010
    Beans
    7

    Question I can't view my laptop on TV

    I have a Compaq c770 with an Intel graphic chipset. I'm running Ubuntu 12.04. I plug the TV through a S-VIDEO port. However, nothing appears on the TV.
    Ubuntu detects the TV, and I can configure it. However, the TV is still black.


    When I write
    Code:
    xrandr --verbose
    it shows this:


    Code:
    TV1 connected 1024x768+1280+0 (0x4b) normal (normal left inverted right x axis y axis) 0mm x 0mm
    Identifier: 0x43
    Timestamp: 1262326
    Subpixel: unknown
    Gamma:      1.0:1.0:1.0 
    Brightness: 1.0  
    Clones:      
    CRTC:       1  
    CRTCs:      1 0  
    Transform:  1.000000 0.000000 0.000000
                  0.000000 1.000000 0.000000
                  0.000000 0.000000 1.000000             
    filter:   
    bottom margin: 37 (0x00000025)  
    range:  (0,100)  
    right margin: 46 (0x0000002e)   
    range:  (0,100)  
    top margin: 36 (0x00000024) 
    range:  (0,100)  
    left margin: 54 (0x00000036)    
    range:  (0,100)  
    mode:   NTSC-M      
    supported: NTSC-M       NTSC-443     NTSC-J       PAL-M                        PAL-N        PAL         
    
    480p@59.94Hz 480p@60Hz                    576p         720p@60Hz    720p@59.94Hz 720p@50Hz                    1080i@50Hz   1080i@60Hz   1080i@59.94H 
    848x480 (0x49) 29.0MHz +preferred
        h: width   848 start  849 end  912 total  944 skew    0 clock   30.7KHz      v: height  480 start  481 end  512 total  513           clock   59.9Hz 
    640x480 (0x4a) 22.6MHz +preferred
        h: width   640 start  641 end  704 total  736 skew    0 clock   30.7KHz      v: height  480 start  481 end  512 total  513           clock   59.9Hz 
    1024x768 (0x4b) 53.8MHz *current
        h: width  1024 start 1025 end 1088 total 1120 skew    0 clock   48.0KHz      v: height  768 start  769 end  800 total  801           clock   59.9Hz 
    800x600 (0x4c) 34.0MHz
        h: width   800 start  801 end  864 total  896 skew    0 clock   37.9KHz      v: height  600 start  601 end  632 total  633           clock   59.9Hz
    I'm booting up with the TV plugged. I'm plugging trough a s-video 8 pin --> scart cable.
    It has an Intel® Graphics Media Accelerator X3100 graphic card.

    I really don't know what is wrong.

  2. #2
    Join Date
    Mar 2010
    Beans
    7

    Re: I can't view my laptop on TV

    Could be a problem with the graphic card?

  3. #3
    Join Date
    Oct 2009
    Location
    Elgin, IL USA
    Beans
    2,762
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: I can't view my laptop on TV

    What is the resolution of your laptop display?

    I have not done that lately, but when I used to output an old laptop from y2k (Jan 2000) to TV, I could use up to 1024x768. Or a VGA to TV converter would only work at 640x480. So try setting your laptop screen resolution to 1024x768 (or 640x480).

    At least if mirroring your display I believe that laptop screen often has to be at same resolution as external display or projector (or modes that the external display accepts, if not native resolution).
    i5 650 3.2 GHz, 8 GB, nvidia GTX 750 Ti, 32" 1080p | i7-4700MQ, 8 GB, Intel HD 4600/nvidia GTX 765M, 15.6" 1080p | etc.

  4. #4
    Join Date
    Mar 2010
    Beans
    7

    Re: I can't view my laptop on TV

    Thanks efflandt.
    I'm not going to test it until two weeks because I'm not being home until then . When I test it, I'll reply .

  5. #5
    Join Date
    Mar 2010
    Beans
    7

    Re: I can't view my laptop on TV

    I've changed the resolution to 800x600


    I'm in Spain so the tv mode is PAL or PAL-N
    Code:
    xrandr --output TV1 --set mode PAL-N
    xrandr --verbose



    However, the tv still shows "Not signal"

  6. #6
    Join Date
    Jan 2013
    Beans
    1

    Re: I can't view my laptop on TV

    I have the same problem and I don't know it yet, if you find out plz text me or something

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