This Zenbook came with Windows 7 Pro installed. It was upgraded to Windows 10 about 8 months ago, and worked fine for the first 6 months - no issues at all. For the last 6 weeks it was used as a desktop computer with external monitor via the micro HDMI port and the primary screen switched off using Function+F8 key. Now that I want to use it without the external monitor, I can't get the ultrabook screen to display anything. There's a dim glow (backlight maybe?) but no image. Apart from that the thing still works perfectly with the external monitor.
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This Zenbook came with Windows 7 Pro installed. It was upgraded to Windows 10 about 8 months ago, and worked fine for the first 6 months - no issues at all. For the last 6 weeks it was used as a desktop computer with external monitor via the micro HDMI port and the laptop screen switched off using Function+F8 key. Now that I want to use it without the external monitor, I can't get the ultrabook screen to display anything (nothing even when starting up). There's a dim glow from the backlight but no image. Apart from that the thing still works perfectly with an external monitor.
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I updated the BIOS to version 219 and the Intel HD 4000 graphics adapter to the latest version from Asus website. I also tried disconnecting the battery to drain the power from the CMOS chip. There hasn't been any accident or rough treatment and the device is 4 years old, not extensively used. My guess is that it's a software problem related to using the external monitor or possibly windows updates.
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I updated the BIOS to version 219 and the Intel HD 4000 graphics adapter to the latest version from Asus website. I also tried disconnecting the battery to drain the power from the CMOS chip. There hasn't been any accident or rough treatment and the device is 4 years old, not extensively used.
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If a hardware problem, then the suspects would be the display panel or the internal cable. I don't know how to check either one.
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My guess is that it's a software problem related to using the external monitor or possibly windows updates.
This Zenbook came with Windows 7 Pro installed. It was upgraded to Windows 10 about 8 months ago, and worked fine for the first 6 months - no issues at all. For the last 6 weeks it was used as a desktop computer with external monitor via the micro HDMI port and the primary screen switched off using Function+F8 key. Now that I want to use it without the external monitor, I can't get the ultrabook screen to display anything. There's a dim glow (backlight maybe?) but no image. Apart from that the thing still works perfectly with the external monitor.
I updated the BIOS to version 219 and the Intel HD 4000 graphics adapter to the latest version from Asus website. I also tried disconnecting the battery to drain the power from the CMOS chip. There hasn't been any accident or rough treatment and the device is 4 years old, not extensively used. My guess is that it's a software problem related to using the external monitor or possibly windows updates.
Any ideas?