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Fix 'git pull failed index.lock file exists' Error - Fix Chrome Black Screen on Mac: Hardware Acceleration Issue-Troubleshooting Nginx Upstream Connection Refused 443

2026-07-28 07:13:12
Fix 'git pull failed index.lock file exists' Error - Fix Chrome Black Screen on Mac: Hardware Acceleration Issue-Troubleshooting Nginx Upstream Connection Refused 443

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.

Next references

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