Comment 37 for bug 754799
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#37 |
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0e1f616
(Get the code!)
The GMBUS warnings are immaterial, the GPIO fallback is working just fine. Interesting that GMBUS should timeout when unplugged though.
More useful would be an intel_reg_dumper with the monitor plugged in on boot (working), and with the monitor plugged in later (blank).
We also need to rule out whether this is just the mishandling of DPMS information between the kernel and X. Normally that can be resolved by e.g. xrandr --output VGA1 --off; xrandr --output VGA1 --mode 800x600; xrandr --output VGA1 --auto;