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OS: Arch Linux x86_64
Host: Nitro AN515-58 (V2.10)
Kernel: Linux 6.10.0-arch1-2
Display (LGD0742): 1920x1080 @ 144 Hz in 16″ [Built-in]
WM: i3 (X11)
CPU: 12th Gen Intel(R) Core(TM) i5-12450H (12) @ 4.40 GHz
GPU 1: NVIDIA GeForce RTX 4050 Max-Q / Mobile [Discrete]
GPU 2: Intel UHD Graphics @ 1.20 GHz [Integrated]
Randomly out of nowhere, not related to any specific process, program etc the laptop screen randomly goes black, the screen is not getting turned off its just nothing is being displayed, I know this because the display is a LCD and so the LCD backlight is still on when this happens. The computer is also not shutting down or anything, If I was watching a video before the screen went black then the video will still be playing because I can here the audio and also control the video like press "Space" to pause the video.
If I close the laptop lid and open it after a few seconds then the display works fine, the applications I opened before are still working and I can see them.
This problem occurs randomly and is not related to any specific thing I am doing on my laptop, I did some CPU and GPU stress test and the problem did not occur during that period and so I think its not related to an exact event.
But the cause(my guess) of this, is not random and their is the same or similar journalctl error message when the laptop screen goes off and then I manually do the close and open lid procedure.
Here is the journalcrl error log:
`journalctl -p 3 -b`
Jul 25 13:07:17 AN515-58-50HZ kernel: integrity: Problem loading X.509 certificate -65
Jul 25 13:07:17 AN515-58-50HZ kernel: integrity: Problem loading X.509 certificate -65
Jul 25 13:07:17 AN515-58-50HZ kernel:
Jul 25 13:07:18 AN515-58-50HZ kernel: iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
Jul 25 13:07:19 AN515-58-50HZ kernel: iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
Jul 25 13:07:19 AN515-58-50HZ kernel: iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
Jul 25 13:07:19 AN515-58-50HZ kernel: Bluetooth: hci0: Malformed MSFT vendor event: 0x02
Jul 25 13:07:20 AN515-58-50HZ kernel: ACPI BIOS Error (bug): Could not resolve symbol [\_TZ.ETMD], AE_NOT_FOUND (20240322/psargs-330)
Jul 25 13:07:20 AN515-58-50HZ kernel: ACPI Error: Aborting method \_SB.IETM._OSC due to previous error (AE_NOT_FOUND) (20240322/psparse-529)
# This is the error message that occurs before the screen goes black
Jul 25 13:31:55 AN515-58-50HZ kernel: usb 3-6: device not accepting address 13, error -71
# This error is due to some unrelated issue with the wifi, but the wifi works fine so I just ignore it
Jul 25 13:32:03 AN515-58-50HZ kernel: iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
Jul 25 13:32:32 AN515-58-50HZ kernel: usb 3-6: device descriptor read/64, error -71
Jul 25 13:35:13 AN515-58-50HZ kernel: iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
Jul 25 13:35:15 AN515-58-50HZ kernel: usb 3-6: device descriptor read/64, error -71
Jul 25 13:39:05 AN515-58-50HZ kernel: iwlwifi 0000:00:14.3: WRT: Invalid buffer destinationHere is the dmesg log(Its long so I am using pastebin):
sudo dmesg
As you can see in the dmesg log and also the journalctl log, the error and logs related to usb 3-6 occurs just before the screen goes black. Like in line 545 of the dmesg log, their is a sudden jump in time and an error related to usb 3-6 which I think is causing the issue(I don't know how but that is the only lead I have right now). Then after that as you can see, I have done the lid close and open procedure, by the logs of the CPU's getting offline and the wifi disconnecting.
The usb 3-6 seems to be the laptop's internal webcam. And sure enough the webcam does not work after screen goes black, If I access the webcam just after a fresh boot then it works sometimes and does not some other times. But after the screen goes black, the webcam completely stops working and no application can detect the webcam.
I started having this problem a while back maybe around 3 weeks ago, so I don't remember which update caused this, I say it might be an update because I was using this laptop without any issue for about half a year with Arch Linux. But I cannot say which update caused it or what was the previous working kernel version because I update daily and at first I ignored the issue thinking a reboot might fix it, but its now 3 weeks and multiple kernel updates and even a major kernel version change from 6.9 to 6.10
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