I had the same issue. When my Hp dv4 would go to sleep it would get stuck there for hours. I would try hard restarts and nothing. I thought it was heat related, but after installing a new fan and cleaning the entire thing out it still stuck in sleep mode. what I found interesting though, was that it would come out of hibernate just fine. So I changed all my settings to go to hibernate and skip sleep. But your fix seems to have fixed the problem.

THANK YOU!

Oh, another quirk is that since both these devices are sitting behind a PL2303 chip, there was no way I could discern to discover which device was which via udev, since all that got reported was the PL2303 … if I wanted to know which device was which, I had to enforce that they plug them into specific USB ports.

it seems that the PL2303 is the most popular chip on the market for serial-to-usb conversion, but due to the lack of a CD signal I wish there were other alternatives.

I work with a few different GPS devices that work off the PL2303 chip. Namely the Globalsat BU353 gps dongle, and also a Hemisphere A100 GPS unit that is accessed through a basic PL2303 serial converter.

gpsd had limitations that I couldn’t live with, so I had to write my own handlers. Nothing kernel-level, I simply accessed /dev/ttyUSB0, but the biggest irk for me is that the PL2303 does not seem to pass the carrier signal through in a useful way, and most high end GPS units attach their timepulse to the CD pin on serial connections. This makes it difficult to get truly accurate timestamp values. (which is something gpsd tries to handle as well)

A lot of people developing filtering have no idea what they are doing. Sadly, many people using complex technical systems have an attitude of “it’s too complicated to care about how it’s working, but it’s not blocking *me* right now, so I’m going to just keep going.”

So like most battles we see, only a certain set of goals are relevant. Whether collateral damage matters or not depends on the power level of the affected parties, and how much weight they throw behind it. Spam filtering is an area I think about quite a bit:

http://realityhandbook.org/essay/how-message-filtering-affects-delivery/

It’s interesting how even putting a link to an essay I’ve written on it adds a certain measure of risk of this comment making it to you. :-/

Similarly in your case of the bogus license claim you’re having, a whitelist of non-infringing material is not workable. One simply must cultivate an awareness that we can’t naively trust single authority to properly filter or categorize content–be that Google, or YouTube, or your ISP, or the DNS system.

In a sense, a bad algorithm can serve as a great educational point. So it can almost be better to leave up a file of static with a licensing claim on it than to get them to remove that line.

On a related note, I’m pretty much convinced the Kindle revocation of the text of Orwell’s books, including 1984, from devices that had downloaded them was to make a point. Not necessarily “don’t use electronic books” but rather to raise awareness…a kind of *metaeducation*.