Can't use ch340g serial port driver since upgrading to Yosemite on MacBook air

I use my MacBook air with the Arduino 1.0.6 IDE. Since upgrading ( free upgrade) to Yosemite. I can no longer acess the ch340g serial port. (does not show up in arduino ide). I tried re-installing the driver. I get no errors and am told the install was successful. This was working very nicely before the upgrade. I now have three boards I cannot use. I am at a loss as to what I should do. I suppose I could go back to Maverick but then I would have to go buy the operating system. This seems wrong to me. I was offered an upgrade that then leaves me up the creek without a paddle. Any help given would be highly appreciated.

I have the same problem, a non stable CM341 serial to tty driver on Yosemity on a MacbookPro Retina.
I followed the advice of Rsattaur, I executed the command: sudo nvram boot-args="kext-dev-mode=1" and now I have big problems with my USB-ports.
The result is a screen-of-death after connecting anything to my USB-ports!!!!
Harold

Similar Messages

Hp dc 7800 how can i install pci serial port driver on windows 8.1

hp dc 7800 how can i install pci serial port driver on windows 8.1 please help
This question was solved.
View Solution.

Hi:
Download and install the W7 AMT driver.
http://h20565.www2.hp.com/portal/site/hpsc/template.PAGE/public/psi/swdDetails/?sp4ts.oid=3459243&sp...

Since upgrading to Yosemite my macbook pro keeps going to sleep if I am not using it. I want it to stay on as I leave it doing things overnight etc. It was fine before the upgrade and I have all the system preference set to "never turn off"

Since upgrading to Yosemite my macbook pro keeps going to sleep if I am not using it. I want it to stay on as I leave it doing things overnight (cd's / recording etc. It was fine before the upgrade and I have all the system preference set to "never turn off" - Help !!!

Good advice from Linc Davis that should sort out your query i think...
However you dont want to set your MBP to never go to sleep...
Adjust reasonable sleep settings...
And the download an APP called caffiene...
When you click it you can have your MBP never go to sleep with a single click of your menu bar... and with another click it can go to sleep normally to maintain the laptop...
Simply click the cup... To toggle never sleep/sleep

Since upgrading to yosemite my MacBook Pro want detect my external display

Since upgrading to yosemite my macbook pro won't detect my external display ?

Here's an Apple Discussions thread that might help. It suggests using Disk Utility to repair permissions to fix the following issue, which I just found on my system:
User differs on “private/var/db/displaypolicyd”; should be 0; user is 244.
Group differs on “private/var/db/displaypolicyd”; should be 0; group is 244.
If Repair Permissions doesn't do the trick (because it doesn't stick across sleep and restarts), helpful user "lplacencia" has provided some Terminal commands to patch up the files as needed. With any luck a 10.10.1 update will address this soon!
I haven't had a chance to test this fix yet, but I will do so later tonight. Meanwhile I can report that booting up in Safe Mode didn't make any difference for me. My system includes MacPorts (which includes some running services) so I might need to eliminate that factor, if Disk Utility doesn't help.
A total clean install would have to be my next step. (And I might try that anyway just to see if it's a problem in Yosemite generally.) It's not possible to download the Yosemite full installer from Apple through a public website, but you can save the installer and use it to re-install without having to download it again.

Can't open Word Excel or Powerpoint since upgrade to Yosemite

Since upgrading to Yosemite I am unable to open Word Excel and Powerpoint

I'm not sure if you exactly mean what you mean.
Are you not able to save an attachement or are you not able to download a file?
For the first case: is the attachement showing up in Mail? If so, what happens when simply clicking on the attachement?
For the second case: check your download-location configured in Safari to ensure you save to a directory available for write-access.

Can i use an external hard drive to upgrade to lion as only 1gb on my mac

I have an imac and want to upgrade to lion but I only have 1gb of memory. I have an external harddrive wired to the system for photos, movies etc can I use this to allow me to gain enough memory for the uprgade or do I just need to buy more memory/RAM?

macsales.com and crucial.com sell RAM that is compatible with your system (follow the system selection prompts) and will offer RAM that is as much as your system can take. If it offers 4 GB, then buy the 4 GB. If it only says 1 is possible, then you are out-of-luck.
ifixit.com and macsales.com will present vieds and picture guides (I may be an adult, but pictures DO help!) to replace RAM.
Should not adversely affect the mac, unless *something* is so faulty it is due fore replacement anyway.

Can I use my iPad mini to extend the display from my Macbook Air?

Is there a way to utilize my ipad mini wifi, to extend the display from my Macbook Air?

There is no need to charge it before you first use it. You cannot run the battery too low as the system will shut the device off before that happens to protect the battery.
Generally speaking, your Lithium battery will have the longest useable life if you avoid deep cycles. Since you can plug and unplug it as you wish, the best thing to do is just charge it up (however much) whenever it is convenient to do so (whether it is 10% discharged, or 20% or 50% - basically don't pay any attention to the battery level, just plug it in when it is convenient to do so to keep the battery topped up). And try to avoid frequent deep cycles where you run it all the way or very near to the point it auto-shuts off.

Can I use ApplceCare bought by my US student friend on a MacBook Air in India?

I had bought my MacBook Air 13 inch base model in India 11 months ago and have been using it here and will continue to do so.
My (MS) student friend in the USA offered to buy me one from his university store or maybe an Apple store which will be discounted.
I think by the time I myself join it will be more than 12 months so only discount option is via him. In India they do not procide studen discount to AppleCare if it was not bought at the time MacBook was bought. I just asked this to an official reseller(Apple doesn't have its own stores here).
I am not sure whether I can use it or not, on my MacBook Air I mean.
So, can I do it?
If no, then can you please tell me why not?
And if yes, then how should I/he should procced for the purchase so that there's no problem.
Because from what I understand if I use my AppleID to buy this from Apple Online Store, which I actually tried till checkout and address from and logged out after that, then I will/might also have to produce some kind of ID proof that I am a student and I am not one.
If my friends does that from his AppleID then that might be tied to his AppleID, or it's not like that?
What if he just walks into an Apple Store with his student ID or simply arranges a pickup at one store having bought already online?
How to go about it.

Looks like I can as long as the AppleCare is used the guy transfers the AppleCare to my name after buying.

Can i use Apple Wireless Keyboard and Apple Magic Trackpad with my macbook air 11" 2010

Can i use new Apple Wireless Keyboard and Apple Magic Trackpad with my macbook air 11" 2010?
thank
dean

Yes. Pair using Bluetooth with your MacBook Air.

Since upgrading to Yosemite my Macbook Pro makes me log on twice after shutting down or sleep

I upgraded to Yosemite a while ago. Since then I must enter my system password two times when I return from the shut down status or sleep status. What is causing this?

Do you have FileVault turned on? Based on what I've seen in the forum, that is causing the double login.

How can I use my external hard drive with my new (firewire-less) MacBook?

I read in another post that the available firewire adapters don't work for external hard drives. So how can I get my music, etc. off my external hard drive and onto my new computer?

Like the second or third one in this picture?
http://upload.wikimedia.org/wikipedia/commons/f/f4/USBtypes2.jpg
They are USB ports - the smaller one is a mini-USB (like you might find on a digital camera) and the third is a USB-B port (such as on a printer). You can use a mini or standard USB cable (depending on the port) to connect it to your Macbook.
Matt

I can not communicate with the FP-1000, using the serial port.

FP-100 communication by serial port.
My problem is the communication with the interface FP-1000, I haven been using it for two month with my program application and suddenly it stopped to work. I tried to use the FieldPoint Explorer to communicate using its last configuration but it does not work. I have tried to configure again and the FieldPoint Explorer doe not find any module, also I have seen that the network and access LEDs don lit when I am trying to communicate with the FP-1000.
I have checked all connection and they are already, the FP-1000 turn on, and the status LEDs does not lit.
I guess the trouble is the RS-323 connector at the FP-1000.
Could you tell how can I solve this problem?

Hello,
There are a number of things that you can try when you are experiencing communication problems with a FP-1000.
First, double-check that the serial port that you are using is the same one that you are specifying in FieldPoint Explorer. Try using another serial port on the host computer. Try connecting the FP-1000 to another computer.
Make sure that you have FieldPoint Explorer version 3.0.2 or later. Free upgrades are available from the web.
I hope this helps,
Chad Evans

I would like to know if you have to back up a macbook hard drive, can I use a external hard drive that has been previously used to back up several pc 's, or is it best to have a separate external drive for the Mac?

I would like to know if you have to back up a macbook hard drive, can I use a external hard drive that has been previously used to back up several pc 's, or is it best to have a separate external drive for the Mac?

In the Mac side of things, backups usually come in two flavors: clones or incrementals.
A bootable clone is a bit-for-bit copy of all essential files in the startup volume. If using the Lions, clones can be made using CarbonCopyCloner or just plain old Disk Utility. These backups represent the safest protection of your info, but take the longest to do. Recovery is an inverse process: you copy the clone back into the internal drive.
Incremental backups start with a complete backup of the startup volume and only copy whatever changed from the previous run. OS X includes the fully integrated Time Machine backup utility to do this. It is extremely easy to do and takes the least amount of time. Recovery is another matter altogether since you have to start with a freshly installed instance of the OS and have to apply all intervening backups to bring the result to the latest saved version.
As for where the backup takes place, the recommended media is an external dedicated drive or drives connected via the fastest interface available on your Mac: Thunderbolt, USB3, Firewire, or USB2. Network-based backups, wired or wireless, are attractive but may not offer the same performance and hence take longer. Also important to note that the entire drive need not be completely dedicated to a single backup. The Mac's EFI firmware infrastructure allows for an unlimited number of partitions on a hard drive and each can be used for either type of backups.
Holler if you need specifics on how to do each. This was just an executive summary.

I've installed Photoshop Elements 12 from a CD onto my PC laptop. I'm thinking about buying a tablet, so was wondering if (a) can I install on a 2nd device (b) can I use the serial number online as I won't beable to install from a CD, and (c) will I beabl

I've installed Photoshop Elements 12 from a CD onto my PC laptop. I'm thinking about buying a tablet, so was wondering if (a) can I install on a 2nd device (b) can I use the serial number online as I won't beable to install from a CD, and (c) will I beable to choose a mac, after the initial was on a PC???? Thanks Martin

A single user license allows for having activated installations on two machines. An Elements license allows for either platform in many cases (recently not the case from what I've seen). If you have the disc, see if it contains the Mac installation files... if it does then you should be able to install them via a download as well. I cannot answer with certainty for the last question since it relies on the previous question. Personally, I would not let an inexpensive piece of software dictate an expensive hardware purchase decision.

HT1766 Can you use an external hard drive to back up my movies in iTunes but still be able to access them or is there a device so I don't have to use a pc ??

Can you use an external hard drive to back up my movies in iTunes but still be able to access them or is there a device so I don't have to use a pc ??

You can store them on a separate hard drive, you don't need to keep them on your laptop's hard drive. On your computer's iTunes on the Advanced tab in Edit > Preferences there is a 'copy files to iTunes media file when adding to library' tickbox - if you untick that, you should be able to copy the films to a separate drive and add them back to your iTunes library (File > Add To Library) and it should then point to them on that separate drive and not copy them to your hard drive. When you are happy that it is what is happening and that they are safely on your external drive you can delete the films from your laptop's hard drive.
If you plug the external drive into a different USB port next time (assuming that your laptop has more than one) then it might get a different drive letter, so you might need to always use it with the same port.

Can't use ch340g serial port driver since upgrading to Yosemite on MacBook air

Similar Messages

Maybe you are looking for