Recurring NVIDIA Xid 62 GPU crashes traced to idle-to-high power state switching
A developer running a GPU verification system saw an RTX 5080 crash five times in one day with NVIDIA Xid 62 errors, and nvidia-smi could not reset the card. The faults also caused a task management service to mark healthy cards as broken, taking down the whole machine. Correlating telemetry with test timestamps, the author found the errors occurred right after the card idled at low power and then rapidly ramped up. Locking the minimum clock at 800 MHz eliminated the errors in a 10-minute test run. The author's fix is a boot-time systemd unit that reapplies the clock lock, plus a PCI-level reset procedure to recover the card without rebooting.
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