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Inspiron 7577 no display anymore
My Dell Inspiron 15 7000 Gaming 7577 acted strange yesterday.
It is running Ubuntu 21.04 and after the display dimmed due to no activity, it did not come back when touching the mouse. At least not immediately. The screen backlight seemed to work as I could still adjust the brightness and see a little bit of light coming from the screen. Then after a few minutes display was back to normal.
But this morning on power up there was no DELL logo on boot and no display at all. I connected an external HDMI screen and after a while the laptop display came back. But then again after the display dimmed due to no activity, it did not come back and I waited for 25 minutes. Now it seems to totally broken.
Is it the 3840x2160 display?
Is it the nVIDIA GeForce GTX 1060 with max-Q design?
I wanted to inspect the BIOS via the external HDMI screen but that is impossible. Apparently the external screen is only steered by the operating system. I wanted to try to put the Intel internal Graphics as default instead of the discrete nVIDIA. Don't know if that is even possible...
My Dell 7577 was used for 98% in latest Ubuntu with latest nVIDIA drivers.
But regularly I started Windows 10 to see if there were driver/system/bios/.... updates.
So it was completely up to date.
I consider the display issue as a HARDWARE issue, nothing to do with the operating systems running on it.
fireberd
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Posted May 13th, 2021 06:00
Most of the Dell line with dual video defaults to the Intel CPU video and the NVIDIA (or AMD) video is for gaming. I have an Inspiron 15 Gaming 5577 which is very similar to the 7577 and that is the way it too works. I can force it to use the NVIDIA if I disable the Intel in the Device Manager. The HDMI out is only the Intel CPU video, not the NVIDIA.
A hassle, but I would try a CMOS memory (BIOS) reset and see if helps as a first step. This involves removing the coin cell battery for at least 5 minutes to reset CMOS. Actually, with the hassle to access it I would just install a new battery. Its a CR2032 which is readily available wherever batteries are sold.
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