Launchpad has imported 7 comments from the remote bug at https://bugs.freedesktop.org/show_bug.cgi?id=31636.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2010-11-15T20:08:05+00:00 Simon Strandman wrote: Created attachment 40284 Xorg.0.log I've installed Ubuntu 10.10 on two netbooks, one Acer D250 and one Samsung nf310. Both have a problem with the synaptics driver. The horizontal acceleration is greater than the vertical, hence the pointer is not very precise and it's very annoying. This can be solved by tweaking the config: On the samsung I use: Option "VertResolution" "135" Option "HorizResolution" "100" And on the Acer: Option "VertResolution" "1" Option "HorizResolution" "1" But the driver should be able to auto identify this, especially since windows gets it right. The driver seems to have problems loading as there is stuff like this in the Xorg.0.log on both machines: [ 495.943] (EE) Query no Synaptics: 6003C8 [ 495.943] (--) SynPS/2 Synaptics TouchPad: no supported touchpad found [ 495.943] (EE) SynPS/2 Synaptics TouchPad Unable to query/initialize Synaptics hardware. [ 495.944] (EE) PreInit returned NULL for "SynPS/2 Synaptics TouchPad" But the touchpad works anyway and it's possible to use touchpad features like tapping and scrolling. The Xserver is version 1.9.0 and synaptics is version 1.3.99 from git but 1.2.2 that came with ubuntu had this problem too. I've attatched the Xorg.0.log from the samsung (the one from the acer is similar). The log is taken when my tweaks are disabled. Reply at: https://bugs.launchpad.net/xserver-xorg-input- synaptics/+bug/621432/comments/3 ------------------------------------------------------------------------ On 2010-11-17T21:59:25+00:00 Simon Strandman wrote: Created attachment 40346 50-synaptics.conf As requested, this is my 50-synaptics.conf from the samsung (I have a similar one on the acer). When I ran X to create the attatched Xorg.0.log I disabled all my options so that they wouldn't interfere with the auto detection. All line staring with # are my own, the others are from ubuntu. Also I don't have an /etc/X11/xorg.conf Reply at: https://bugs.launchpad.net/xserver-xorg-input- synaptics/+bug/621432/comments/4 ------------------------------------------------------------------------ On 2010-11-18T00:26:15+00:00 Peter Hutterer wrote: http://who-t.blogspot.com/2010/11/how-to-ignore-configuration- errors.html Reply at: https://bugs.launchpad.net/xserver-xorg-input- synaptics/+bug/621432/comments/5 ------------------------------------------------------------------------ On 2010-11-21T14:08:44+00:00 Simon Strandman wrote: Yes, this does indeed fix the errors in the Xorg log. But the other problem remains of course. :) Reply at: https://bugs.launchpad.net/xserver-xorg-input- synaptics/+bug/621432/comments/6 ------------------------------------------------------------------------ On 2011-04-17T00:26:49+00:00 Freedesktoporg wrote: Just to confirm, I and others have the same problem. It seems synaptics calculates pointer speed/acceleration as a percentage of the total horizontal and vertical pixels available. On a single screen (16:9 ratio, 1920x1080) my horizontal and vertical speeds are identical, but when I extend my desktop horizontally by adding another screen (using TwinView, if that matters), the horizontal speed increases, while vertical speed stays the same. Very annoying. Other pointing devices (like external mice and the trackpoint) do not have this problem, apparently because they're handled by evdev and not synaptics. This is in Ubuntu 10.10 amd64 on a Lenovo Thinkpad W510. I've linked to the ubuntu bug (https://bugs.launchpad.net/utouch/+bug/726832). Is this the most appropriate xorg bug to be linking to from there? Reply at: https://bugs.launchpad.net/xserver-xorg-input- synaptics/+bug/621432/comments/8 ------------------------------------------------------------------------ On 2011-04-17T09:21:20+00:00 Simon Strandman wrote: @Martin: I think this is the correct bug, unless the acceleration changing when attatching a second screen is considered a different issue. Synaptics should set the correct resolution on start and then stick with it. It doesn't change if you manually set the resolution btw. Reply at: https://bugs.launchpad.net/xserver-xorg-input- synaptics/+bug/621432/comments/9 ------------------------------------------------------------------------ On 2012-02-08T10:29:08+00:00 Miknix wrote: (In reply to comment #4) > Just to confirm, I and others have the same problem. It seems synaptics > calculates pointer speed/acceleration as a percentage of the total horizontal > and vertical pixels available. Same problem here! Vertical and horizontal touchpad cursor speeds seem to be similar when starting X with a single screen, then as soon as another screen is attached horizontally, the horizontal cursor speed goes insane. Conversely, when a screen is attached vertically, the vertical cursor speed is increased. I'm not using any synaptics specific Xorg.conf options. xf86-input-synaptics-1.4.0 xorg-server-1.11.2-r2 Thanks, Angelo Reply at: https://bugs.launchpad.net/xserver-xorg-input- synaptics/+bug/621432/comments/11 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-input-synaptics in Ubuntu. https://bugs.launchpad.net/bugs/621432 Title: Touchpad speed asymetrical (horizontal faster than vertical) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-input-synaptics/+bug/621432/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
