On Wednesday, October 4, 2017 at 6:31:49 AM UTC-5, Ray Joseph wrote:
> After rebooting tow more times, the keyboard and mousepad became functional.
> 
> Ray

I have continued experimenting and and ran into to losing the input devices 
again.  A day or so later, the I/O would come back up, and they go away again.  

As I am relatively new to Linux, I dumped the journal to file and pulled it 
into Excel.  I tagged those sections where I had not I/O; filtered, color 
coded, sorted.  I could not find a correlation between no I/O and journal 
entries.  Is there another resource I should be looking at?

I have just found that the laptop time/date was off.  So I went into the BIOS 
and set it to UTC.  When it booted up, I/O was available.  I have rebooted a 
couple times and I/O has been available each time.  

I don't know if this is 'fixed'.  

When the I/O was not available, I took pictures of messages during the boot 
process and transcribed them (partially):
[FAILED]  Failed to start Load Kernel Modules.
See 'systemctl status systemd-modules-load.service' for details.
[   10.108174] systemctl[1]:  Failed to start Load Kernel Modules.
OK
OK...
Starting Show Plymouth Boot Screen...
Starting dracut initqueue hook...
11.851549] [drm:intel_dp_link_training-channel_equalization [i915]] *ERROR 5.4 
Gbp link rate without HBR2/TPS3 support

After reading the above error, I went back to the journal file and found that 
'failed' showed up often in the file when there was no I/O.  I will study this 
further to see if I can get a better idea of what is happening.  

BTW, I web searched for the above error and found this error to have occurred 
in fedora and ubuntu; but those were consistent - they were not intermittent.  
I never found whether there was a related I/O failure.

If anything changes, I will report it back here.

Ray

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