Comments on: Chromebook c720 results

By: fappymcmasturbate

fappymcmasturbate — Fri, 21 Aug 2015 05:41:44 +0000

alrighty, will look into it and try again when i get home. thanks

By: Justin Sherrill

Justin Sherrill — Fri, 21 Aug 2015 01:09:13 +0000

I had to kldload snd_hda, if I remember correctly.

By: fappymcmasturbate

fappymcmasturbate — Thu, 20 Aug 2015 23:02:00 +0000

hey

did you get sound to work straight ‘out of the box’ when installing xfce, or did you have to tinker with anything?

By: Justin Sherrill

Justin Sherrill — Wed, 05 Aug 2015 20:03:09 +0000

Correctly align the what with the what?

By: Anonymous

Anonymous — Wed, 05 Aug 2015 01:24:23 +0000

What about correctly aligning the partitions on the SSD. How did you do that?

By: Matt Dillon

Matt Dillon — Thu, 09 Jul 2015 23:20:39 +0000

Oh, one final thing. For people using the laptop regularly, if you notice any whole-system freezes and you are using the AUTODEEP setting for cpu C states to reduce power, that could be the cause. Try not using it or forcing it to only go to C2.

-Matt

By: Matt Dillon

Matt Dillon — Thu, 09 Jul 2015 23:19:06 +0000

We have had several people reporting touchpad trouble with the driver. I’ve had issues myself, usually when the laptop is sitting on a table with the power plugged in and not sitting in my lap. At the moment I don’t know what the cause is.

One thing you can do is try removing the related module loads from /boot/loader.conf and load the modules manually in /etc/rc.local, and see if that improves.

You can simulate left, middle, and right mouse button clicks using three fingers on the touchpad. Place two fingers down, then tap the third finger (left, middle, or right side of the two fingers). The touchpad physical button is annoying. You can do slider action with one finger on the right side of the pad. Note that the touchpad is not the best hardware in the world, so the three fingers have to be vertically offset a bit for the touchpad to properly recognize that three fingers are down.

I’ve been thinking of adopting changes based on FreeBSD’s port of our driver, which uses more of a mac-like interface. I should note again that the touchpad hardware is not the best in the world, which is why I didn’t try to implement 2-finger operations (too many mishits).

In anycase, there is definitely something missing from the driver, the linux driver works a bit better but I don’t know why. The I2c protocol is pretty simple.

—

The touchscreen works quite well, with fewer issues. The only current issue I know of is that the hardware seems to go to sleep when not used for a while (e.g. ~30 minutes) and it takes some finger pokes to wake it up again.

-Matt

By: Justin Sherrill

Justin Sherrill — Thu, 09 Jul 2015 17:53:17 +0000

Suspend/resume tends to be something you have to implement on a per-machine basis. That is (I suspect) why it works on some older thinkpads for FreeBSD, but not newer ones, and not other laptop types. You have to invest a lot of time because it can’t be done once and carried over.

OpenBSD supports Thinkpads well because they’ve thrown a ton of time and effort into troubleshooting it on that specific hardware setup – but that is because of the combination of developers who really want that support, have time for it, and have the hardware for testing it all coming together at the same time. There’s nobody with those resources working on DragonFly right now. (or most other not-commercially-supported operating systems)

By: Anonymous

Anonymous — Thu, 09 Jul 2015 09:33:34 +0000

A number of Thinkpad laptops are actually quite well supported and you can get say a second hand x230 these days for very reasonable prices. It is a powerful laptop with lots of features. If you want a larger screen the T420 is a nice laptop and probably the T420s (thinner version of the T420 with USB 3.0) work equally well.

I think the team mentioned some time ago that doing suspend/resume is rather difficult to get right. I think however, if/when it is implemented, that supporting it on a few Thinkpad models or the c720 would make a world of difference for those that really use laptops full time and travel with them constantly. Having to shut down the laptop when getting ready to board a flight or what not gets to dig into work time. OpenBSD supports suspend/resume rather well on Thinkpads. FreeBSD can do it somewhat on older Thinkpads (problems with USB ports after resuming are still tricky).

By: Billy Larlad

Billy Larlad — Thu, 09 Jul 2015 02:36:52 +0000

Thanks for the update. As somebody who misses netbooks, I guess I’ll file this away somewhere in the back of my mind.

Is the lack of suspend support a quirk of the particular machine or a problem area in Dragonfly generally?