What just happened?

The viewer crashed during login at the "Loading World" stage, just at the point when the screen would transition to 3D rendering. This does not repro 100% of the time. Attached "crash during login SecondLife.log"

Occasionally, within a minute of Second Life crashing, Windows will blue screen with stop code: video dxgkrnl fatal error

What were you doing when it happened?

• On a Laptop with 2 video cards. Intel UHD and GeForce GTX 1660 Ti

• Shut Down Windows.

• Start the laptop.

• Unplug the laptop so it's running on battery power. (The necessity of this step is interesting)

• Start Second Life.

• Log in.

  What were you expecting to happen instead?

  The viewer should log in.

  Other information

  After the crash, running the viewer again may show an error message, "session after crash error.png" Attached "session after crash SecondLife.log"

  Ran this on the command line after the crashed session:

  wmic path Win32_VideoController get Name
  Name
  Intel(R) UHD Graphics
  NVIDIA GeForce GTX 1660 Ti

  Shutting down Windows then starting Windows does not reset the video driver, and starting SL will get the same error message.
  Restarting Windows does reset the video driver and that "session after crash error.png" will not appear.

  This repros on 6.4.11.551711 too, so it's not a recent regression.

  Workaround: After logging into Windows, waiting 2 minutes before starting the viewer has avoided this crash so far.

  Other workarounds left to try:
  -Disabling Nahimic (BUG-227725) didn't help.-
  Update Intel UHD driver from 26.20.100.7642 to 27.20.100.8935, A03
  Roll back to an older Nvidia video driver version.
  Uninstall Alienware software
  Uninstall Killer wifi (VWR-25909)

Attachments

• crash during login SecondLife.log 2021-02-26 22:00:54
• logs2021-03-02.zip 2021-03-02 10:16:31
• plugged-in login SecondLife.log 2021-03-02 12:00:12
• session after crash error.png 2021-02-26 19:27:21
• session after crash SecondLife.log 2021-02-26 19:26:00
• successful login SecondLife.log 2021-02-26 21:58:11

{
  'Build Id': 'unset',
  'Business Unit': ['Platform'],
  'ReOpened Count': 0.0,
  'Severity': 'Unset',
  'System': 'SL Viewer',
  'Target Viewer Version': 'viewer-development',
  'What just happened?': 'The viewer crashed during login at the "Loading World" stage.',
  'What were you doing when it happened?': "Quit Windows.\r\nStart the laptop.\r\nUnplug the laptop so it's running on battery power.\r\nStart Second Life.\r\nLog in.",
  'What were you expecting to happen instead?': 'The viewer should log in.',
  'Where': 'http://maps.secondlife.com/secondlife/Bug%20Island%202/150/138/25 , facing North',
}