[Bug 107623] (4.18.3)[drm:hwss_edp_wait_for_hpd_ready [amdgpu]] *ERROR* hwss_edp_wait_for_hpd_ready: wait timed out!

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changed bug 107623
What Removed Added
Status NEW RESOLVED
Resolution --- WORKSFORME

Comment # 5 on bug 107623 from
This issue was detected on 4.18.3 when using a somewhat reduced developer
config. When using our usual full distro kernel config (from Ubuntu), the issue
convincingly goes away.

Both Jian-Hong and I looked at the differences in the config and couldn't spot
anything obvious that would explain different behaviour. Trying to bisect good
and bad configs, for a while it looked like it might be CONFIG_NUMA_BALANCING=y
and CONFIG_NUMA_BALANCING_DEFAULT_ENABLED=y but we then disproved that in
further experiments. We didn't find which config option is responsible for the
different behaviour.

There's probably a bug here somewhere, but as it's working on our shipped
config I'll close this issue, as we need to focus our time on other issues on
this platform.


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