Document History. Version Issued by Issue Date Comments. 1.0 Gilbert 2012/03/08 Standard First release. Trouble Shooting Procedure HDMI 1

Transcription

1 HDMI DSP 0

2 Document History Version Issued by Issue Date Comments 1.0 Gilbert 2012/03/08 Standard First release Trouble Shooting Procedure HDMI 1

3 For flow chart: Trouble Shooting Procedure HDMI 2

4 Issue received When users submit HDMI issues to call center: 1: Please ask users update BIOS/EC/VBIOS/Driver, the FW/Software version may affect the HDMI audio or video feature. If it is solved by new Software/FW => Issue closed If new Software/FW can t solve => please ask for the exactly problem details 2: If HDMI problem is No video output on the external monitor 2-1. First, please adjust the screen resolution from notebook panel, to see if the user set the screen resolution which exceeds external panel spec. Also refers to FAQ: Problem: When using external monitor device, if you change the resolution setting of ATI VGA Graphics to 1080P and switch the system to DVI / HDMI mode, the external monitor will either not show any display or blink occasionally. Answer: Please change the resolution setting to either of the following: 480P, 720P or 1080i, then the issue will be solved Second, if possible, the user can try HDMI output on the other external monitor. This action can clarify if the problem is from external monitor or Notebook HDMI Sometimes the problem is from the poor contact of HDMI cable, so if the user can try another HDMI cable, it may solve the problem. If above actions work => Issue closed If above actions fail or not possible to try => please send the machine to RMA 3: The video output is normal, but the screen size on the external monitor doesn t fit the full screen, please advises the user to check graphic driver settings. For example: CX700 Also refers to FAQ: ATI graphic does not do 1920x1080 full screen on HDMI. It displays black bars (both horizontally and vertically). ATI driver default may vary from VGA cards. But it provides a "Scaling option" to adjust the screen size. Whenever you connect HDTV or other HDMI equipment for display; Please go to ATI catalyst control panel > Desktop & Displays > Scaling options to find the "Scaling options"; Trouble Shooting Procedure HDMI 3

5 As below pictures display procedure to do; 1st one: throughout HDMI port to connect extend device with UUT; 2nd one: Right click desktop properties, and select ATI catalyst; 3rd one: At control center to select Desktops & Displays; 4th one: Right click TV icon to select config. icon; 5th one: Enter into select scaling options If changing resolution setting works=> Issue closed If fails, please collects the external monitor brand details and forward it to RMA or FAE for further check. Note 1: 4. If HDMI can t output audio to the external monitors, please check following limitations: A. EX623 VGA is NVIDIA NB9P GE1 chipset which doesn't have audio port, so HDMI can't transfer audio. Other models don't have the problem. The other way to confirm the HDMI audio function is you could find "High definition audio device" in device manger after driver installed if the model supports HDMI audio. B. Problem: HDMI sound output failed on some monitors. Root cause: Some HDMI TV s have a na ve resolu on that exceeds the maximum supported HD mode. For example, TVs with a native resolution of 1920x1200 exceed the maximum supported HD mode of 1920x1080. Applying this native mode results in display overscan which cannot be resized using the NVIDIA Control Panel since the mode is not an HD mode. To avoid this situation and provide a better user experience, the driver treats such TVs as a DVI monitor when applying the native mode. Because the driver does not treat the TV as an HDMI in this case, the HDMI audio is not used. Solution: Depends on the monitor resolution spec, there will be different behavior. Please use the monitor that meets Nvidia spec. C. If you install XP OS on X340, you have to manually set Default device to HDMI Device under Control Panel => Audio and sound Devices=> Audio option. Trouble Shooting Procedure HDMI 4

6 Trouble Shooting Procedure HDMI 5