First Cup of Ubuntu
Hi everyone,
I just want to ask if anyone hase experiences with the acer 1825 multitouch ?
And if so, what is working and what's not ?
I think the netbook edition with the multitouch display would be a great combination, nice looking desktop with direct access to the most important programms, combined with multi touch and the power of a dual core cpu ...
Hope some one made it work
greetings
lrohr
First Cup of Ubuntu
Hi,
I recently acquired an Acer Aspire Timeline 1825ptz. It is very similar to the 1810, except of course for the touch screen.
Power saving etc
I found a lot of good and useful information about the 1810 on
http://ubuntu-virginia.ubuntuforums.....php?t=1341325
Note that to get the acerhdf (http://piie.net/?section=acerhdf) kernel module working, you need to add the bios version of the 1825ptz to it:
/* Acer 1825xx */
{"Acer", "Aspire 1825PTZ", "V1.3118", 0x55, 0x58, {0x9e, 0x00} },
To be able to compile the module, you need to install linux-headers-<your version> and linux-headers-<your version>-generic
Touch screen
I got the touch screen working with a few tricks:
- Installed kernel 2.6.35 from ppa
http://kernel.ubuntu.com/~kernel-ppa/mainline/
- The touch screen is now recognised by X11/evdev, but as a touch pad instead of a touch screen. I fixed this by applying the patch described here:
https://bugzilla.redhat.com/show_bug.cgi?id=518494
( modify evdev.c: replace
if (num_buttons || TestBit(BTN_TOOL_FINGER, pEvdev->key_bitmask)) {
by
if (TestBit(BTN_TOOL_FINGER, pEvdev->key_bitmask)) {
)
(using apt-get source xserver-xorg-input-evdev)
I also filed a bug on launchpad:
https://bugs.launchpad.net/bugs/604097
- Now the touch screen needs to be calibrated. I used xinput_calibrator:
http://www.freedesktop.org/wiki/Soft...put_calibrator
Screen rotation
I haven't found out yet how to use the G sensor for automatic screen rotation. However, I remapped the P-button next to the touch screen to rotate the screen.
I attached the script used to rotate the screen. Note that it includes the calibration values. It is probably possible to retrieve them from X. Also, I wonder why it is necessary to change the calibration when rotating the axes, shouldn't this be automatic?
To be able to use the P button, I added the following to /etc/rc.local :
setkeycodes e070 112
Then used gnome-keybinding-properties to execute the rotate script when it is pressed
Still to do:
- Get multitouch or other gestures working and configure it such that the panel becomes useful without a keyboard. Especially two-finger scroll would be very useful. (some more info here: http://blogs.gnome.org/carlosg/2010/...-linuxxorggtk/ )
- Figure out how to use the G sensor.
best regards,
Tom
Last edited by tomfrancart; July 31st, 2010 at 10:19 AM. Reason: updating information
A Carafe of Ubuntu
Hi Tom,Originally Posted by tomfrancart
How did you get the touchscreen working with kernel-2.6.35-rc1 while there is no touchscreen drivers for the 1825ptz in this version ???
The hid-cando driver exists only in 2.6.35-rc2 and newer version... ^^
You also said that you got screen rotation, but do the axes follow the rotation ?
First Cup of Ubuntu
I used a kernel >2.6.35-rc2, the link in my post was wrong. I corrected it.
I also attached the rotation script.
best regards,
Tom
A Carafe of Ubuntu
Arf, That's what I thought... and do you know that from rc3 et above you shoud'nt need calibration anymore (no need for xinput-calibrator) ?
Your pach should be sufficient, but if you use xf86-input-evdev 2.4 it works as well the same way, but the drawback is that the touchscreen will only be a monotouch one, for the moment...
I'm working also on xf86-input-evdev from the ENAC, and if it shows multitouch there is still a problem with calibration... ^^
From rc3 to rc6 the behaveviour sounds really different... ^^
I tested your rotate script and it looks very nice !
Good job Tom !!!
First Cup of Ubuntu
Wow tom, haha, I have a very little background and experience when it comes to programming..
So this looks quite scary.
How do I start, since I have already installed Ubuntu NE LL.?
A Carafe of Ubuntu
You have all the necessary informations here :
http://ubuntuforums.org/showthread.p...=1#post9671569
Install your (x)buntu 10.04 Lucid as normal and accept all the localization if needed. after that do all the initial upgrades proposed by the system.
At last, apply all the "extended upgrades" as notified above, and all should be fine...
You can also launch gconf-editor (with Alt-F2) : apps -> panel -> toplevels -> top_panel -> size
Change the value from 24 to 36 or any other value that suite to your finger...
First Cup of Ubuntu
Thanx for the full thread, I finally did it and bought the 1825ptz I'm running ubuntu 10.4 netbook edition right now and things work great !
I noticed some things:
when the display is turned around, the angle of which you can see things on the screen is crappy, except you invert the display...
So I changed the script to make the inversion possible.
How ever, just after using your rotation script the first time the brightness buttons lost their functions. Before that they worked right out of the box... Do you have any idea why ?
Is it possible somehow to change the fanspeed it self ? I would like to toggle the speed of the fan rather than just turn it on and off again ...
And does anybody now what the acerhdf-virtual-0 temperature is ?
GreetingsCode:1825:~# sensors coretemp-isa-0000 Adapter: ISA adapter Core 0: +50.0°C (high = +105.0°C, crit = +105.0°C) coretemp-isa-0001 Adapter: ISA adapter Core 1: +54.0°C (high = +105.0°C, crit = +105.0°C) acerhdf-virtual-0 Adapter: Virtual device temp1: +61.0°C (crit = +63.0°C)
A Carafe of Ubuntu
No idea about this as I don't have this problem...
Maybe this depends on your kernel version ?!?!?!
The sole problem I have sometimes is that the Desktop get scrambled after rotations and when I get back to the standard display. This problem does not occur with firefox, the Terminal... ^^
I guess a one solution could be to kill the script and then to reload it after the rotation finish. To be tested...
No idea either...
I don't even have this last value (acerhdf-virtual-0) as I don't use acerhdf... ^^
Best regards
A Carafe of Ubuntu
Hi,
I think I have found some informations about the G sensor for this 1825(ptz)...
I first watch at the Acer drivers for Windows and found a reference : SMO8800. I poke around google but found nothing useful except this is a sensor made by ST Micro...
But I watch again in the drivers located in the "C:\OEM\Preload\Autorun\DRV\MISC G sensor LIS33DETR" directory and found another reference LIS33DETR, which looks like to be the real reference of the ScreenDetection device for autoscreen rotation.
There is no source code reference at all in any versions of linux kernel (I watched at 2.6.36-rc1), but after a deep search with google, I found 2 things : a script which was supposed to read informations about a 3D Accelerator on Palo35 device and using a LIS33DE with i2c-dev module... But this script does not work as it could even not read the registers... May be I missed something... ??? Some differences between the lis33DE and lis33DETR ??? ^^
http://permalink.gmane.org/gmane.lin....general/49727
At least, I then found all the C source code for the list33DE driver in the Android-kernel trunk... ^^
I have not integrated this code in a linux kernel nor have I tested it, yet !
http://code.google.com/p/m8-android-...ips/lis302dl.c
I will try to compile it and see if I can get if work, but if you are quicker than me, you can use it at your own risk... ^^
Best regards,
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