I found one way to activate the touch screen:
- On computer start press F2 to enter the BIOS setup
- under Main set 'User SETUP Options' to 'advanced'
- under Advanced go to Onboard Device Configuration and set
'SmartCharge' to 'Always Off'
I assume that changing that option lessens the power efficiency of the
computer.
Windows 7 is still able to use the touch screen with the 'SmartCharge'
enabled and linux and other windows versions don't.
Booting with a UBCD that is windows xp I receive the very same picture
as in linux. So to say if SmartCharge is Off the screen is found and if
SmartCharge is enabled the screen is not found.
On 05/17/2012 07:25 PM, Alan Stern wrote:
On Thu, 17 May 2012, Anil Nair wrote:
On Thu, May 17, 2012 at 7:54 PM, Alan Stern<stern@xxxxxxxxxxxxxxxxxxx> wrote:
No. �If your guess was right then no full/low-speed device would work
on that laptop, whereas obviously they do. �For example, the mouse
wheel was detected normally.
The Windows screenshot showed that the touchscreen was plugged into a
hub, and the port status data from that hub under Linux showed the port
was not getting a connect signal (no D+ pullup).
Sir, Why this difference from Windows to Linux?. I was in the belief
that most of the devices work under Linux.
I don't know.
Are you saying that some form of system call is required to connect
the device to the USB Bus? In Windows the Device is connected to the
USB Bus; Then why this difference in working? Does the touchscreen
controller has to do anything in this? Or the USB Bus? Sorry for the
misunderstanding earlier.......:).
If I knew the reason why it's not working, I would tell Gerhard how to
fix it.
Alan Stern
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