Ihave been trying to get Windows 8.1 working on my Acer C720 laptop (chromebook) as have many others, we have been able to get it mostly working aside from video acceleration, which when the Intel graphics drivers are installed results in the screen appearing blank, if a monitor is plugged into the HDMI port there are strange lines across both or one of the screens which react to mouse movement etc.
I was wondering if this could be some kind of problem with the drivers for the 2955u and if so any help getting correct drivers for it would be greatly appreciated, I will try and post a picture at some point. I realise this is not the norm, but users who want to run windows have nowhere else to go as a licence agreement between acer and Google prevents them from giving us Windows drivers themselves. Although strangely the Linux drivers work fine on this device :Sproblem
Hi thanks for the quick response, here is the information requested, at the moment I have to close the laptop so that it disables the internal screen and then the HDMI port works but it seems to no longer detect the other screen afterwards,
Here we have a special situation. The laptop you have supports the Chrome Operating System. This means that you can try loading a different Operating System but the internal components on the unit have been designed to work with the original Operating System therefore at this point, the best option is to contact the Computer Manufacture and confirm with them if Win 8.1 can be used with the system and if so, they should be able to provide the drivers for the computer.
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I decided it was finally time to work, fired up adb and launched eclipse to test an app and I discovered it wasn't in my devices list. I've tried installing the acer drivers. It puts a folder in my Program Files directory...but I don't see what I'm supposed to do there. There's "EUUDriverInstaller" but when I click on it nothing (seems to) happens.
I've reboot several times on both device and laptop.I've uninstalled / reinstalled the application that made that driver directory.I opened an application in the driver directory under the x64 folder and it opened up the windows driver installer and installed some drivers...but still no composite adb when I plug it in.It is on usb debugging and I've toggled it on and off.
A500 using 3.2 roms (I have other 4.x devices, so I'm saving this one). Using Windows 8. Downloaded and installed the Acer 1.06 drivers. Have previously isntalled Google ADB drivers for the Nexus 7 from android-sdk\extras\google\usb_driver\amd64 (or i386 if that's appropriate), but that may not be required.
Plug in the A500, and launch device manager. The Acer Iconia Tab A500 device shows up in "Other Devices" folder but with no drivers installed. Click on the device, click on "Update Driver". Select "Browse my Computer". Click "Let me pick from a list of device drivers on my computer". From that list, select "Android Device". Select "Google" as manufacturer, and select "Android ADB Interface" as the Model. CLick "next". Click "Yes really, really do it please". Done.
On windows 8.1, the behavior is different again. The device will show up in the "Android Device" folder. Right click on that, and proceed as described above to select and isntall the "Android ADB Interface" driver. I'm having to do this with all my devices. Windows 8.1 seems to istall everything BUT the ADB driver, which you need to forcibly install using this procedure.
Folks here are right: Win 7 is single-minded about using its own driver for this tablet, and the Acer installer simply drops the files onto the drive. In fact, it drops them onto the drive, then seeing that the Windows driver is already in place, happily deletes the Win7 drivers it has copied out of the installer. I spent an hour in Device Manager trying to con Win7 into using the Acer drivers, but it kept telling me they were not compatible.
Unfortunately, plug again and again (and again?) didn't help me.. neither did switching usb ports..It really took me 3 days search quite a lot of post threads to solve the problem.Just come back to share with those stopped by the same puzzle :)
The above instruction requires a PC which can ADB to your tablet over usb.Better work-around is root your device firstly, and then download a adbWireless,so you can switch your tablet to ADB TCP mode even without USB connection at all.
None of the other answers worked for me, but it pointed me in the right direction. I had to hack the drivers similar to -the-adb-usb-driver-for-acer-a500/ and then manually point the drivers to the hacked inf.
My device hardware ID and the inf file were a bit different from the ones in the link but the general idea is there. Note that the x86 / x64 folders for the acer driver correspond to your operating system version, not the version of android sdk on your system. I'm on Windows 7 64-bit so I used the one under C:\Program Files (x86)\Acer Inc\ACER ICONIA TAB\Win7\ADB\x64\android_usb.inf
For Windows 7:In my case I just go to Device Manager -> Portable Devices -> Acer ICONIA TAB A100 right click on mouse and Update Driver, after that Compound Device will be installed. And Android USB Devices appear.
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