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Message #113182
[Bug 730488] [NEW] [Lucid] xf86ScaleAxis problems with high resolution devices
Public bug reported:
Binary package hint: xorg
The xf86ScaleAxis function is used to scale x and y axis values of input
devices between different resolutions. Due to internal integer overflow,
the acceptable value range for its arguments are limited below their
type (signed 32bit integer). This imposes a problem for high resolution
devices, like the wacom Intuos 4 L, which have a total horizontal
resolution of 65024. Example: when doing a scaling with a range of more
than 46340 (Sxhigh-Sxlow), the integer X will wrap into negative values,
and truncated to 0 at the end.
Among other devices, this problem affects wacom Intuos 4 L and XL
tablets when compiling the xf86-input-wacom driver version 0.10.9 and
above. Previous versions work, because they don't use the xf86ScaleAxis
function. With current xorg releases this problem does not happen
either, because a upstream patch (http://lists.x.org/archives/xorg-
devel/2010-April/007333.html) already extends the acceptable value
range. A solution would be to include this patch into 10.04, because
there is still quite a time till the next LTS.
If there is a chance for getting this patch included into 10.04 I'm
willing to make a patch specific for the current xorg-server-1.7.6
package and test it.
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/730488
Title:
[Lucid] xf86ScaleAxis problems with high resolution devices
Follow ups
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[Bug 730488] Re: [Lucid] xf86ScaleAxis problems with high resolution devices
From: Eduard Hasenleithner, 2011-05-25
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[Bug 730488] Re: [Lucid] xf86ScaleAxis problems with high resolution devices
From: George, 2011-05-25
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[Bug 730488] Re: [Lucid] xf86ScaleAxis problems with high resolution devices
From: Yvon TANGUY, 2011-04-28
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[Bug 730488] Re: [Lucid] xf86ScaleAxis problems with high resolution devices
From: ehasenle, 2011-04-28
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[Bug 730488] Re: [Lucid] xf86ScaleAxis problems with high resolution devices
From: Yvon TANGUY, 2011-04-28
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[Bug 730488] Re: [Lucid] xf86ScaleAxis problems with high resolution devices
From: Launchpad Bug Tracker, 2011-04-26
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[Bug 730488] Re: [Lucid] xf86ScaleAxis problems with high resolution devices
From: madbiologist, 2011-04-21
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[Bug 730488] Re: [Lucid] xf86ScaleAxis problems with high resolution devices
From: Launchpad Bug Tracker, 2011-03-08
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[Bug 730488] Re: [Lucid] xf86ScaleAxis problems with high resolution devices
From: ehasenle, 2011-03-08
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[Bug 730488] Re: [Lucid] xf86ScaleAxis problems with high resolution devices
From: Martin Pitt, 2011-03-08
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[Bug 730488] Re: [Lucid] xf86ScaleAxis problems with high resolution devices
From: Bryce Harrington, 2011-03-08
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[Bug 730488] Re: [Lucid] xf86ScaleAxis problems with high resolution devices
From: ehasenle, 2011-03-07
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[Bug 730488] Re: [Lucid] xf86ScaleAxis problems with high resolution devices
From: Bryce Harrington, 2011-03-07
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[Bug 730488] Re: [Lucid] xf86ScaleAxis problems with high resolution devices
From: Brian Murray, 2011-03-07
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[Bug 730488] Re: [Lucid] xf86ScaleAxis problems with high resolution devices
From: bugbot, 2011-03-07
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[Bug 730488] Re: [Lucid] xf86ScaleAxis problems with high resolution devices
From: bugbot, 2011-03-07
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[Bug 730488] Re: [Lucid] xf86ScaleAxis problems with high resolution devices
From: ehasenle, 2011-03-07
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[Bug 730488] [NEW] [Lucid] xf86ScaleAxis problems with high resolution devices
From: ehasenle, 2011-03-07
References