HDMI not detected by `xrandr`

Question

There's no output from my HDMI port and my TV shows NO Signal.

My Current OS: Linux Mint 15

Things I have tried with no success:

1. Change the HDMI cable
2. Install another operating system ( Windows 7, Windows 8 and Ubuntu)
3. Tried to connect to a different TV

Eventually I thought that my HDMI port was damaged, until I ran the following command aplay -l:

output:

**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0

As you guys can see, I saw HDMI 0, so there's nothing wrong with my HDMI port.

Furthermore xrandr does not detect it, please take a look at xrandr output as well:

Screen 0: minimum 320 x 200, current 1366 x 768, maximum 32767 x 32767
LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
   1366x768       59.6*+
   1360x768       59.8     60.0  
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9  
VGA1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
TV1 disconnected (normal left inverted right x axis y axis)

HDMI is not listed, please guys I need your help with this, there's no response when I connect my HDMI cable to the computer. There's no video/audio output on my TV screen.

Answer 1

您已经尝试了包括 Windows 在内的四种操作系统，但其中任何一个都不起作用？那么很有可能是硬件问题。aplay -L 中的数据并不能排除硬件问题，因为该信息来自您的音频芯片组，而不是实际的 HDMI 端口。如果仍在保修期内，请联系制造商。