[Kernel-packages] [Bug 1264426] Re: Appletouch driver moves cursor in steps
Fix released with 14.10. ** Changed in: linux (Ubuntu) Status: Fix Committed = Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1264426 Title: Appletouch driver moves cursor in steps Status in linux package in Ubuntu: Fix Released Bug description: When using the appletouch driver on a Macbook 3,1, the cursor moves in noticeable horizontal or vertical 'steps'. This is particularly noticeable when dragging a diagonal line. This can make the trackpad very difficult to use, as it becomes hard to hone in on small objects, particularly if the user has opted for a faster cursor. This issue is also described in a forum thread: http://ubuntuforums.org/showthread.php?t=813884page=6 There is a workaround that involves modifying and recompiling appletouch.c with a couple of changes. This is also detailed in bug #1034132. I expect this bug to hit a larger audience as owners of Macbooks too old for OS X Mavericks begin to migrate to Linux. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.12.0-7-generic 3.12.0-7.15 ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4 Uname: Linux 3.12.0-7-generic x86_64 ApportVersion: 2.12.7-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ubuntu 2706 F pulseaudio CasperVersion: 1.336ubuntu1 CurrentDesktop: Unity CurrentDmesg: [ 31.859199] sky2 :03:00.0 eth0: Link is up at 1000 Mbps, full duplex, flow control both [ 31.859229] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 299.816181] mce: [Hardware Error]: Machine check events logged Date: Fri Dec 27 03:05:13 2013 IwConfig: eth0 no wireless extensions. lono wireless extensions. LiveMediaBuild: Ubuntu 14.04 LTS Trusty Tahr - Alpha amd64 (20131226) MachineType: Apple Inc. MacBook3,1 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash -- RelatedPackageVersions: linux-restricted-modules-3.12.0-7-generic N/A linux-backports-modules-3.12.0-7-generic N/A linux-firmware1.117 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/05/08 dmi.bios.vendor: Apple Inc. dmi.bios.version: MB31.88Z.008E.B02.0803051832 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Mac-F22788C8 dmi.board.vendor: Apple Inc. dmi.board.version: PVT dmi.chassis.asset.tag: Asset Tag# dmi.chassis.type: 2 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F22788C8 dmi.modalias: dmi:bvnAppleInc.:bvrMB31.88Z.008E.B02.0803051832:bd03/05/08:svnAppleInc.:pnMacBook3,1:pvr1.0:rvnAppleInc.:rnMac-F22788C8:rvrPVT:cvnAppleInc.:ct2:cvrMac-F22788C8: dmi.product.name: MacBook3,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1264426/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1264426] Re: Appletouch driver moves cursor in steps
Fix is in 3.15 kernel, which should put it in Ubuntu 14.10. ** Changed in: linux (Ubuntu) Status: In Progress = Fix Committed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1264426 Title: Appletouch driver moves cursor in steps Status in “linux” package in Ubuntu: Fix Committed Bug description: When using the appletouch driver on a Macbook 3,1, the cursor moves in noticeable horizontal or vertical 'steps'. This is particularly noticeable when dragging a diagonal line. This can make the trackpad very difficult to use, as it becomes hard to hone in on small objects, particularly if the user has opted for a faster cursor. This issue is also described in a forum thread: http://ubuntuforums.org/showthread.php?t=813884page=6 There is a workaround that involves modifying and recompiling appletouch.c with a couple of changes. This is also detailed in bug #1034132. I expect this bug to hit a larger audience as owners of Macbooks too old for OS X Mavericks begin to migrate to Linux. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.12.0-7-generic 3.12.0-7.15 ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4 Uname: Linux 3.12.0-7-generic x86_64 ApportVersion: 2.12.7-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ubuntu 2706 F pulseaudio CasperVersion: 1.336ubuntu1 CurrentDesktop: Unity CurrentDmesg: [ 31.859199] sky2 :03:00.0 eth0: Link is up at 1000 Mbps, full duplex, flow control both [ 31.859229] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 299.816181] mce: [Hardware Error]: Machine check events logged Date: Fri Dec 27 03:05:13 2013 IwConfig: eth0 no wireless extensions. lono wireless extensions. LiveMediaBuild: Ubuntu 14.04 LTS Trusty Tahr - Alpha amd64 (20131226) MachineType: Apple Inc. MacBook3,1 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash -- RelatedPackageVersions: linux-restricted-modules-3.12.0-7-generic N/A linux-backports-modules-3.12.0-7-generic N/A linux-firmware1.117 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/05/08 dmi.bios.vendor: Apple Inc. dmi.bios.version: MB31.88Z.008E.B02.0803051832 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Mac-F22788C8 dmi.board.vendor: Apple Inc. dmi.board.version: PVT dmi.chassis.asset.tag: Asset Tag# dmi.chassis.type: 2 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F22788C8 dmi.modalias: dmi:bvnAppleInc.:bvrMB31.88Z.008E.B02.0803051832:bd03/05/08:svnAppleInc.:pnMacBook3,1:pvr1.0:rvnAppleInc.:rnMac-F22788C8:rvrPVT:cvnAppleInc.:ct2:cvrMac-F22788C8: dmi.product.name: MacBook3,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1264426/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1264426] Re: Appletouch driver moves cursor in steps
** Tags added: patch -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1264426 Title: Appletouch driver moves cursor in steps Status in “linux” package in Ubuntu: Fix Committed Bug description: When using the appletouch driver on a Macbook 3,1, the cursor moves in noticeable horizontal or vertical 'steps'. This is particularly noticeable when dragging a diagonal line. This can make the trackpad very difficult to use, as it becomes hard to hone in on small objects, particularly if the user has opted for a faster cursor. This issue is also described in a forum thread: http://ubuntuforums.org/showthread.php?t=813884page=6 There is a workaround that involves modifying and recompiling appletouch.c with a couple of changes. This is also detailed in bug #1034132. I expect this bug to hit a larger audience as owners of Macbooks too old for OS X Mavericks begin to migrate to Linux. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.12.0-7-generic 3.12.0-7.15 ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4 Uname: Linux 3.12.0-7-generic x86_64 ApportVersion: 2.12.7-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ubuntu 2706 F pulseaudio CasperVersion: 1.336ubuntu1 CurrentDesktop: Unity CurrentDmesg: [ 31.859199] sky2 :03:00.0 eth0: Link is up at 1000 Mbps, full duplex, flow control both [ 31.859229] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 299.816181] mce: [Hardware Error]: Machine check events logged Date: Fri Dec 27 03:05:13 2013 IwConfig: eth0 no wireless extensions. lono wireless extensions. LiveMediaBuild: Ubuntu 14.04 LTS Trusty Tahr - Alpha amd64 (20131226) MachineType: Apple Inc. MacBook3,1 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash -- RelatedPackageVersions: linux-restricted-modules-3.12.0-7-generic N/A linux-backports-modules-3.12.0-7-generic N/A linux-firmware1.117 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/05/08 dmi.bios.vendor: Apple Inc. dmi.bios.version: MB31.88Z.008E.B02.0803051832 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Mac-F22788C8 dmi.board.vendor: Apple Inc. dmi.board.version: PVT dmi.chassis.asset.tag: Asset Tag# dmi.chassis.type: 2 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F22788C8 dmi.modalias: dmi:bvnAppleInc.:bvrMB31.88Z.008E.B02.0803051832:bd03/05/08:svnAppleInc.:pnMacBook3,1:pvr1.0:rvnAppleInc.:rnMac-F22788C8:rvrPVT:cvnAppleInc.:ct2:cvrMac-F22788C8: dmi.product.name: MacBook3,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1264426/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1264426] Re: Appletouch driver moves cursor in steps
Patch for bug 1034132 fixes this. See https://bugs.launchpad.net/mactel-support/+bug/1034132/comments/16 for how to git clone and test. ** Patch added: appletouch-smoothness.patch https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1264426/+attachment/4070220/+files/appletouch-smoothness.patch -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1264426 Title: Appletouch driver moves cursor in steps Status in “linux” package in Ubuntu: In Progress Bug description: When using the appletouch driver on a Macbook 3,1, the cursor moves in noticeable horizontal or vertical 'steps'. This is particularly noticeable when dragging a diagonal line. This can make the trackpad very difficult to use, as it becomes hard to hone in on small objects, particularly if the user has opted for a faster cursor. This issue is also described in a forum thread: http://ubuntuforums.org/showthread.php?t=813884page=6 There is a workaround that involves modifying and recompiling appletouch.c with a couple of changes. This is also detailed in bug #1034132. I expect this bug to hit a larger audience as owners of Macbooks too old for OS X Mavericks begin to migrate to Linux. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.12.0-7-generic 3.12.0-7.15 ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4 Uname: Linux 3.12.0-7-generic x86_64 ApportVersion: 2.12.7-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ubuntu 2706 F pulseaudio CasperVersion: 1.336ubuntu1 CurrentDesktop: Unity CurrentDmesg: [ 31.859199] sky2 :03:00.0 eth0: Link is up at 1000 Mbps, full duplex, flow control both [ 31.859229] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 299.816181] mce: [Hardware Error]: Machine check events logged Date: Fri Dec 27 03:05:13 2013 IwConfig: eth0 no wireless extensions. lono wireless extensions. LiveMediaBuild: Ubuntu 14.04 LTS Trusty Tahr - Alpha amd64 (20131226) MachineType: Apple Inc. MacBook3,1 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash -- RelatedPackageVersions: linux-restricted-modules-3.12.0-7-generic N/A linux-backports-modules-3.12.0-7-generic N/A linux-firmware1.117 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/05/08 dmi.bios.vendor: Apple Inc. dmi.bios.version: MB31.88Z.008E.B02.0803051832 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Mac-F22788C8 dmi.board.vendor: Apple Inc. dmi.board.version: PVT dmi.chassis.asset.tag: Asset Tag# dmi.chassis.type: 2 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F22788C8 dmi.modalias: dmi:bvnAppleInc.:bvrMB31.88Z.008E.B02.0803051832:bd03/05/08:svnAppleInc.:pnMacBook3,1:pvr1.0:rvnAppleInc.:rnMac-F22788C8:rvrPVT:cvnAppleInc.:ct2:cvrMac-F22788C8: dmi.product.name: MacBook3,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1264426/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1264426] Re: Appletouch driver moves cursor in steps
** Changed in: linux (Ubuntu) Status: Confirmed = In Progress ** Description changed: When using the appletouch driver on a Macbook 3,1, the cursor moves in noticeable horizontal or vertical 'steps'. This is particularly noticeable when dragging a diagonal line. This can make the trackpad very difficult to use, as it becomes hard to hone in on small objects, particularly if the user has opted for a faster cursor. This issue is also described in a forum thread: http://ubuntuforums.org/showthread.php?t=813884page=6 There is a workaround that involves modifying and recompiling appletouch.c with a couple of changes. This is also detailed in bug #1034132. - - Original: - #define ATP_FUZZ 16 - #define ATP_THRESHOLD 5 - - New: - #define ATP_FUZZ 0 - #define ATP_THRESHOLD 2 - - This makes the trackpad much more usable, though slight stepping is - still noticeable. I've found the modification below seems to provide a - small amount of additional smoothness: - - Original: - pcum += (xy_sensors[i] - threshold) * i; - psum += (xy_sensors[i] - threshold); - - New: - pcum += (xy_sensors[i]) * i; - psum += (xy_sensors[i]); - - Another change that seems to help is using more than one previous cursor - sample when averaging out the movement towards the desired new cursor - position: - - Original: - x = (dev-x_old * 3 + x) 2; - y = (dev-y_old * 3 + y) 2; - - New: - x = (dev-x_older + dev-x_old * 2 + x) 2; - y = (dev-y_older + dev-y_old * 2 + y) 2; - - Put together, these changes make the stepping as close to imperceptible - as can be reasonably expected given the hardware. - - Regression testing will be necessary on the earlier (pre-geyser 4) - models to rule out the possibility that these changes would just be - trading better behavior for some models at the expense of others; if - that were the case, some conditional logic would be in order. I expect this bug to hit a larger audience as owners of Macbooks too old for OS X Mavericks begin to migrate to Linux. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.12.0-7-generic 3.12.0-7.15 ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4 Uname: Linux 3.12.0-7-generic x86_64 ApportVersion: 2.12.7-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ubuntu 2706 F pulseaudio CasperVersion: 1.336ubuntu1 CurrentDesktop: Unity CurrentDmesg: [ 31.859199] sky2 :03:00.0 eth0: Link is up at 1000 Mbps, full duplex, flow control both [ 31.859229] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 299.816181] mce: [Hardware Error]: Machine check events logged Date: Fri Dec 27 03:05:13 2013 IwConfig: eth0 no wireless extensions. lono wireless extensions. LiveMediaBuild: Ubuntu 14.04 LTS Trusty Tahr - Alpha amd64 (20131226) MachineType: Apple Inc. MacBook3,1 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash -- RelatedPackageVersions: linux-restricted-modules-3.12.0-7-generic N/A linux-backports-modules-3.12.0-7-generic N/A linux-firmware1.117 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/05/08 dmi.bios.vendor: Apple Inc. dmi.bios.version: MB31.88Z.008E.B02.0803051832 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Mac-F22788C8 dmi.board.vendor: Apple Inc. dmi.board.version: PVT dmi.chassis.asset.tag: Asset Tag# dmi.chassis.type: 2 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F22788C8 dmi.modalias: dmi:bvnAppleInc.:bvrMB31.88Z.008E.B02.0803051832:bd03/05/08:svnAppleInc.:pnMacBook3,1:pvr1.0:rvnAppleInc.:rnMac-F22788C8:rvrPVT:cvnAppleInc.:ct2:cvrMac-F22788C8: dmi.product.name: MacBook3,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1264426 Title: Appletouch driver moves cursor in steps Status in “linux” package in Ubuntu: In Progress Bug description: When using the appletouch driver on a Macbook 3,1, the cursor moves in noticeable horizontal or vertical 'steps'. This is particularly noticeable when dragging a diagonal line. This can make the trackpad very difficult to use, as it becomes hard to hone in on small objects, particularly if the user has opted for a faster cursor. This issue is also described in a forum thread: http://ubuntuforums.org/showthread.php?t=813884page=6 There is a workaround that involves modifying and recompiling appletouch.c with a couple of changes. This is also detailed in bug #1034132. I expect this bug to hit a larger audience as owners of Macbooks too
[Kernel-packages] [Bug 1264426] Re: Appletouch driver moves cursor in steps
** Changed in: linux (Ubuntu) Assignee: (unassigned) = Clinton (cssprain) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1264426 Title: Appletouch driver moves cursor in steps Status in “linux” package in Ubuntu: Confirmed Bug description: When using the appletouch driver on a Macbook 3,1, the cursor moves in noticeable horizontal or vertical 'steps'. This is particularly noticeable when dragging a diagonal line. This can make the trackpad very difficult to use, as it becomes hard to hone in on small objects, particularly if the user has opted for a faster cursor. This issue is also described in a forum thread: http://ubuntuforums.org/showthread.php?t=813884page=6 There is a workaround that involves modifying and recompiling appletouch.c with a couple of changes. This is also detailed in bug #1034132. Original: #define ATP_FUZZ 16 #define ATP_THRESHOLD 5 New: #define ATP_FUZZ 0 #define ATP_THRESHOLD 2 This makes the trackpad much more usable, though slight stepping is still noticeable. I've found the modification below seems to provide a small amount of additional smoothness: Original: pcum += (xy_sensors[i] - threshold) * i; psum += (xy_sensors[i] - threshold); New: pcum += (xy_sensors[i]) * i; psum += (xy_sensors[i]); Another change that seems to help is using more than one previous cursor sample when averaging out the movement towards the desired new cursor position: Original: x = (dev-x_old * 3 + x) 2; y = (dev-y_old * 3 + y) 2; New: x = (dev-x_older + dev-x_old * 2 + x) 2; y = (dev-y_older + dev-y_old * 2 + y) 2; Put together, these changes make the stepping as close to imperceptible as can be reasonably expected given the hardware. Regression testing will be necessary on the earlier (pre-geyser 4) models to rule out the possibility that these changes would just be trading better behavior for some models at the expense of others; if that were the case, some conditional logic would be in order. I expect this bug to hit a larger audience as owners of Macbooks too old for OS X Mavericks begin to migrate to Linux. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.12.0-7-generic 3.12.0-7.15 ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4 Uname: Linux 3.12.0-7-generic x86_64 ApportVersion: 2.12.7-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ubuntu 2706 F pulseaudio CasperVersion: 1.336ubuntu1 CurrentDesktop: Unity CurrentDmesg: [ 31.859199] sky2 :03:00.0 eth0: Link is up at 1000 Mbps, full duplex, flow control both [ 31.859229] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 299.816181] mce: [Hardware Error]: Machine check events logged Date: Fri Dec 27 03:05:13 2013 IwConfig: eth0 no wireless extensions. lono wireless extensions. LiveMediaBuild: Ubuntu 14.04 LTS Trusty Tahr - Alpha amd64 (20131226) MachineType: Apple Inc. MacBook3,1 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash -- RelatedPackageVersions: linux-restricted-modules-3.12.0-7-generic N/A linux-backports-modules-3.12.0-7-generic N/A linux-firmware1.117 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/05/08 dmi.bios.vendor: Apple Inc. dmi.bios.version: MB31.88Z.008E.B02.0803051832 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Mac-F22788C8 dmi.board.vendor: Apple Inc. dmi.board.version: PVT dmi.chassis.asset.tag: Asset Tag# dmi.chassis.type: 2 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F22788C8 dmi.modalias: dmi:bvnAppleInc.:bvrMB31.88Z.008E.B02.0803051832:bd03/05/08:svnAppleInc.:pnMacBook3,1:pvr1.0:rvnAppleInc.:rnMac-F22788C8:rvrPVT:cvnAppleInc.:ct2:cvrMac-F22788C8: dmi.product.name: MacBook3,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1264426/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1264426] Re: Appletouch driver moves cursor in steps
** Tags added: kernel-bug-exists-upstream -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1264426 Title: Appletouch driver moves cursor in steps Status in “linux” package in Ubuntu: Confirmed Bug description: When using the appletouch driver on a Macbook 3,1, the cursor moves in noticeable horizontal or vertical 'steps'. This is particularly noticeable when dragging a diagonal line. This can make the trackpad very difficult to use, as it becomes hard to hone in on small objects, particularly if the user has opted for a faster cursor. This issue is also described in a forum thread: http://ubuntuforums.org/showthread.php?t=813884page=6 There is a workaround that involves modifying and recompiling appletouch.c with a couple of changes. This is also detailed in bug #1034132. Original: #define ATP_FUZZ 16 #define ATP_THRESHOLD 5 New: #define ATP_FUZZ 0 #define ATP_THRESHOLD 2 This makes the trackpad much more usable, though slight stepping is still noticeable. I've found the modification below seems to provide a small amount of additional smoothness: Original: pcum += (xy_sensors[i] - threshold) * i; psum += (xy_sensors[i] - threshold); New: pcum += (xy_sensors[i]) * i; psum += (xy_sensors[i]); Another change that seems to help is using more than one previous cursor sample when averaging out the movement towards the desired new cursor position: Original: x = (dev-x_old * 3 + x) 2; y = (dev-y_old * 3 + y) 2; New: x = (dev-x_older + dev-x_old * 2 + x) 2; y = (dev-y_older + dev-y_old * 2 + y) 2; Put together, these changes make the stepping as close to imperceptible as can be reasonably expected given the hardware. Regression testing will be necessary on the earlier (pre-geyser 4) models to rule out the possibility that these changes would just be trading better behavior for some models at the expense of others; if that were the case, some conditional logic would be in order. I expect this bug to hit a larger audience as owners of Macbooks too old for OS X Mavericks begin to migrate to Linux. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.12.0-7-generic 3.12.0-7.15 ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4 Uname: Linux 3.12.0-7-generic x86_64 ApportVersion: 2.12.7-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ubuntu 2706 F pulseaudio CasperVersion: 1.336ubuntu1 CurrentDesktop: Unity CurrentDmesg: [ 31.859199] sky2 :03:00.0 eth0: Link is up at 1000 Mbps, full duplex, flow control both [ 31.859229] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 299.816181] mce: [Hardware Error]: Machine check events logged Date: Fri Dec 27 03:05:13 2013 IwConfig: eth0 no wireless extensions. lono wireless extensions. LiveMediaBuild: Ubuntu 14.04 LTS Trusty Tahr - Alpha amd64 (20131226) MachineType: Apple Inc. MacBook3,1 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash -- RelatedPackageVersions: linux-restricted-modules-3.12.0-7-generic N/A linux-backports-modules-3.12.0-7-generic N/A linux-firmware1.117 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/05/08 dmi.bios.vendor: Apple Inc. dmi.bios.version: MB31.88Z.008E.B02.0803051832 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Mac-F22788C8 dmi.board.vendor: Apple Inc. dmi.board.version: PVT dmi.chassis.asset.tag: Asset Tag# dmi.chassis.type: 2 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F22788C8 dmi.modalias: dmi:bvnAppleInc.:bvrMB31.88Z.008E.B02.0803051832:bd03/05/08:svnAppleInc.:pnMacBook3,1:pvr1.0:rvnAppleInc.:rnMac-F22788C8:rvrPVT:cvnAppleInc.:ct2:cvrMac-F22788C8: dmi.product.name: MacBook3,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1264426/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1264426] Re: Appletouch driver moves cursor in steps
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.13 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as Confirmed. Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-rc6-trusty/ ** Changed in: linux (Ubuntu) Importance: Undecided = Medium -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1264426 Title: Appletouch driver moves cursor in steps Status in “linux” package in Ubuntu: Confirmed Bug description: When using the appletouch driver on a Macbook 3,1, the cursor moves in noticeable horizontal or vertical 'steps'. This is particularly noticeable when dragging a diagonal line. This can make the trackpad very difficult to use, as it becomes hard to hone in on small objects, particularly if the user has opted for a faster cursor. This issue is also described in a forum thread: http://ubuntuforums.org/showthread.php?t=813884page=6 There is a workaround that involves modifying and recompiling appletouch.c with a couple of changes. This is also detailed in bug #1034132. Original: #define ATP_FUZZ 16 #define ATP_THRESHOLD 5 New: #define ATP_FUZZ 0 #define ATP_THRESHOLD 2 This makes the trackpad much more usable, though slight stepping is still noticeable. I've found the modification below seems to provide a small amount of additional smoothness: Original: pcum += (xy_sensors[i] - threshold) * i; psum += (xy_sensors[i] - threshold); New: pcum += (xy_sensors[i]) * i; psum += (xy_sensors[i]); Another change that seems to help is using more than one previous cursor sample when averaging out the movement towards the desired new cursor position: Original: x = (dev-x_old * 3 + x) 2; y = (dev-y_old * 3 + y) 2; New: x = (dev-x_older + dev-x_old * 2 + x) 2; y = (dev-y_older + dev-y_old * 2 + y) 2; Put together, these changes make the stepping as close to imperceptible as can be reasonably expected given the hardware. Regression testing will be necessary on the earlier (pre-geyser 4) models to rule out the possibility that these changes would just be trading better behavior for some models at the expense of others; if that were the case, some conditional logic would be in order. I expect this bug to hit a larger audience as owners of Macbooks too old for OS X Mavericks begin to migrate to Linux. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.12.0-7-generic 3.12.0-7.15 ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4 Uname: Linux 3.12.0-7-generic x86_64 ApportVersion: 2.12.7-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ubuntu 2706 F pulseaudio CasperVersion: 1.336ubuntu1 CurrentDesktop: Unity CurrentDmesg: [ 31.859199] sky2 :03:00.0 eth0: Link is up at 1000 Mbps, full duplex, flow control both [ 31.859229] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 299.816181] mce: [Hardware Error]: Machine check events logged Date: Fri Dec 27 03:05:13 2013 IwConfig: eth0 no wireless extensions. lono wireless extensions. LiveMediaBuild: Ubuntu 14.04 LTS Trusty Tahr - Alpha amd64 (20131226) MachineType: Apple Inc. MacBook3,1 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash -- RelatedPackageVersions: linux-restricted-modules-3.12.0-7-generic N/A linux-backports-modules-3.12.0-7-generic N/A linux-firmware1.117 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/05/08 dmi.bios.vendor: Apple Inc. dmi.bios.version: MB31.88Z.008E.B02.0803051832 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Mac-F22788C8 dmi.board.vendor: Apple Inc. dmi.board.version: PVT dmi.chassis.asset.tag: Asset Tag# dmi.chassis.type: 2 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F22788C8 dmi.modalias: dmi:bvnAppleInc.:bvrMB31.88Z.008E.B02.0803051832:bd03/05/08:svnAppleInc.:pnMacBook3,1:pvr1.0:rvnAppleInc.:rnMac-F22788C8:rvrPVT:cvnAppleInc.:ct2:cvrMac-F22788C8: dmi.product.name: MacBook3,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. To manage notifications about this bug go to:
[Kernel-packages] [Bug 1264426] Re: Appletouch driver moves cursor in steps
** Tags added: latest-bios-b02 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1264426 Title: Appletouch driver moves cursor in steps Status in “linux” package in Ubuntu: Confirmed Bug description: When using the appletouch driver on a Macbook 3,1, the cursor moves in noticeable horizontal or vertical 'steps'. This is particularly noticeable when dragging a diagonal line. This can make the trackpad very difficult to use, as it becomes hard to hone in on small objects, particularly if the user has opted for a faster cursor. This issue is also described in a forum thread: http://ubuntuforums.org/showthread.php?t=813884page=6 There is a workaround that involves modifying and recompiling appletouch.c with a couple of changes. This is also detailed in bug #1034132. Original: #define ATP_FUZZ 16 #define ATP_THRESHOLD 5 New: #define ATP_FUZZ 0 #define ATP_THRESHOLD 2 This makes the trackpad much more usable, though slight stepping is still noticeable. I've found the modification below seems to provide a small amount of additional smoothness: Original: pcum += (xy_sensors[i] - threshold) * i; psum += (xy_sensors[i] - threshold); New: pcum += (xy_sensors[i]) * i; psum += (xy_sensors[i]); Another change that seems to help is using more than one previous cursor sample when averaging out the movement towards the desired new cursor position: Original: x = (dev-x_old * 3 + x) 2; y = (dev-y_old * 3 + y) 2; New: x = (dev-x_older + dev-x_old * 2 + x) 2; y = (dev-y_older + dev-y_old * 2 + y) 2; Put together, these changes make the stepping as close to imperceptible as can be reasonably expected given the hardware. Regression testing will be necessary on the earlier (pre-geyser 4) models to rule out the possibility that these changes would just be trading better behavior for some models at the expense of others; if that were the case, some conditional logic would be in order. I expect this bug to hit a larger audience as owners of Macbooks too old for OS X Mavericks begin to migrate to Linux. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.12.0-7-generic 3.12.0-7.15 ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4 Uname: Linux 3.12.0-7-generic x86_64 ApportVersion: 2.12.7-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ubuntu 2706 F pulseaudio CasperVersion: 1.336ubuntu1 CurrentDesktop: Unity CurrentDmesg: [ 31.859199] sky2 :03:00.0 eth0: Link is up at 1000 Mbps, full duplex, flow control both [ 31.859229] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 299.816181] mce: [Hardware Error]: Machine check events logged Date: Fri Dec 27 03:05:13 2013 IwConfig: eth0 no wireless extensions. lono wireless extensions. LiveMediaBuild: Ubuntu 14.04 LTS Trusty Tahr - Alpha amd64 (20131226) MachineType: Apple Inc. MacBook3,1 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash -- RelatedPackageVersions: linux-restricted-modules-3.12.0-7-generic N/A linux-backports-modules-3.12.0-7-generic N/A linux-firmware1.117 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/05/08 dmi.bios.vendor: Apple Inc. dmi.bios.version: MB31.88Z.008E.B02.0803051832 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Mac-F22788C8 dmi.board.vendor: Apple Inc. dmi.board.version: PVT dmi.chassis.asset.tag: Asset Tag# dmi.chassis.type: 2 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F22788C8 dmi.modalias: dmi:bvnAppleInc.:bvrMB31.88Z.008E.B02.0803051832:bd03/05/08:svnAppleInc.:pnMacBook3,1:pvr1.0:rvnAppleInc.:rnMac-F22788C8:rvrPVT:cvnAppleInc.:ct2:cvrMac-F22788C8: dmi.product.name: MacBook3,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1264426/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1264426] Re: Appletouch driver moves cursor in steps
** Description changed: When using the appletouch driver on a Macbook 3,1, the cursor moves in noticeable horizontal or vertical 'steps'. This is particularly noticeable when dragging a diagonal line. This can make the trackpad very difficult to use, as it becomes hard to hone in on small objects, particularly if the user has opted for a faster cursor. This issue is also described in a forum thread: http://ubuntuforums.org/showthread.php?t=813884page=6 There is a workaround that involves modifying and recompiling appletouch.c with a couple of changes. This is also detailed in bug #1034132. Original: #define ATP_FUZZ 16 #define ATP_THRESHOLD 5 New: #define ATP_FUZZ 0 #define ATP_THRESHOLD 2 This makes the trackpad much more usable, though slight stepping is still noticeable. I've found the modification below seems to provide a small amount of additional smoothness: Original: pcum += (xy_sensors[i] - threshold) * i; psum += (xy_sensors[i] - threshold); New: pcum += (xy_sensors[i]) * i; psum += (xy_sensors[i]); + + Another change that seems to help is using more than one previous cursor + sample when averaging out the movement towards the desired new cursor + position: + + Original: + x = (dev-x_old * 3 + x) 2; + y = (dev-y_old * 3 + y) 2; + + New: + x = (dev-x_older + dev-x_old * 2 + x) 2; + y = (dev-y_older + dev-y_old * 2 + y) 2; + + Put together, these changes make the stepping as close to imperceptible + as can be reasonably expected given the hardware. Regression testing will be necessary on the earlier (pre-geyser 4) models to rule out the possibility that these changes would just be trading better behavior for some models at the expense of others; if that were the case, some conditional logic would be in order. I expect this bug to hit a larger audience as owners of Macbooks too old for OS X Mavericks begin to migrate to Linux. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.12.0-7-generic 3.12.0-7.15 ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4 Uname: Linux 3.12.0-7-generic x86_64 ApportVersion: 2.12.7-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: ubuntu 2706 F pulseaudio CasperVersion: 1.336ubuntu1 CurrentDesktop: Unity CurrentDmesg: [ 31.859199] sky2 :03:00.0 eth0: Link is up at 1000 Mbps, full duplex, flow control both [ 31.859229] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 299.816181] mce: [Hardware Error]: Machine check events logged Date: Fri Dec 27 03:05:13 2013 IwConfig: eth0 no wireless extensions. lono wireless extensions. LiveMediaBuild: Ubuntu 14.04 LTS Trusty Tahr - Alpha amd64 (20131226) MachineType: Apple Inc. MacBook3,1 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash -- RelatedPackageVersions: linux-restricted-modules-3.12.0-7-generic N/A linux-backports-modules-3.12.0-7-generic N/A linux-firmware1.117 RfKill: 0: hci0: Bluetooth Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/05/08 dmi.bios.vendor: Apple Inc. dmi.bios.version: MB31.88Z.008E.B02.0803051832 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Mac-F22788C8 dmi.board.vendor: Apple Inc. dmi.board.version: PVT dmi.chassis.asset.tag: Asset Tag# dmi.chassis.type: 2 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F22788C8 dmi.modalias: dmi:bvnAppleInc.:bvrMB31.88Z.008E.B02.0803051832:bd03/05/08:svnAppleInc.:pnMacBook3,1:pvr1.0:rvnAppleInc.:rnMac-F22788C8:rvrPVT:cvnAppleInc.:ct2:cvrMac-F22788C8: dmi.product.name: MacBook3,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1264426 Title: Appletouch driver moves cursor in steps Status in “linux” package in Ubuntu: Confirmed Bug description: When using the appletouch driver on a Macbook 3,1, the cursor moves in noticeable horizontal or vertical 'steps'. This is particularly noticeable when dragging a diagonal line. This can make the trackpad very difficult to use, as it becomes hard to hone in on small objects, particularly if the user has opted for a faster cursor. This issue is also described in a forum thread: http://ubuntuforums.org/showthread.php?t=813884page=6 There is a workaround that involves modifying and recompiling appletouch.c with a couple of changes. This is also detailed in bug #1034132. Original: #define ATP_FUZZ 16 #define ATP_THRESHOLD 5 New: #define ATP_FUZZ 0 #define ATP_THRESHOLD 2 This makes the trackpad
[Kernel-packages] [Bug 1264426] Re: Appletouch driver moves cursor in steps
** Description changed: When using the appletouch driver on a Macbook 3,1, the cursor moves in - noticable horizontal or vertical 'steps'. This is particularly + noticeable horizontal or vertical 'steps'. This is particularly noticeable when dragging a diagonal line. This can make the trackpad very difficult to use, as it becomes hard to hone in on small objects, particularly if the user has opted for a faster cursor. This issue is also described in a forum thread: http://ubuntuforums.org/showthread.php?t=813884page=6 There is a workaround that involves modifying and recompiling appletouch.c with a couple of changes. This is also detailed in bug #1034132. Original: #define ATP_FUZZ 16 #define ATP_THRESHOLD 5 New: #define ATP_FUZZ 0 #define ATP_THRESHOLD 2 This makes the trackpad much more usable, though slight stepping is - still noticable. I've found the modification below seems to provide a + still noticeable. I've found the modification below seems to provide a small amount of additional smoothness: Original: pcum += (xy_sensors[i] - threshold) * i; psum += (xy_sensors[i] - threshold); New: pcum += (xy_sensors[i]) * i; psum += (xy_sensors[i]); Regression testing will be necessary on the earlier (pre-geyser 4) models to rule out the possibility that these changes would just be trading better behavior for some models at the expense of others; if that were the case, some conditional logic would be in order. I expect this bug to hit a larger audience as owners of Macbooks too old for OS X Mavericks begin to migrate to Linux. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.12.0-7-generic 3.12.0-7.15 ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4 Uname: Linux 3.12.0-7-generic x86_64 ApportVersion: 2.12.7-0ubuntu3 Architecture: amd64 AudioDevicesInUse: - USERPID ACCESS COMMAND - /dev/snd/controlC0: ubuntu 2706 F pulseaudio + USERPID ACCESS COMMAND + /dev/snd/controlC0: ubuntu 2706 F pulseaudio CasperVersion: 1.336ubuntu1 CurrentDesktop: Unity CurrentDmesg: - [ 31.859199] sky2 :03:00.0 eth0: Link is up at 1000 Mbps, full duplex, flow control both - [ 31.859229] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready - [ 299.816181] mce: [Hardware Error]: Machine check events logged + [ 31.859199] sky2 :03:00.0 eth0: Link is up at 1000 Mbps, full duplex, flow control both + [ 31.859229] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready + [ 299.816181] mce: [Hardware Error]: Machine check events logged Date: Fri Dec 27 03:05:13 2013 IwConfig: - eth0 no wireless extensions. - - lono wireless extensions. + eth0 no wireless extensions. + + lono wireless extensions. LiveMediaBuild: Ubuntu 14.04 LTS Trusty Tahr - Alpha amd64 (20131226) MachineType: Apple Inc. MacBook3,1 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/username.seed boot=casper quiet splash -- RelatedPackageVersions: - linux-restricted-modules-3.12.0-7-generic N/A - linux-backports-modules-3.12.0-7-generic N/A - linux-firmware1.117 + linux-restricted-modules-3.12.0-7-generic N/A + linux-backports-modules-3.12.0-7-generic N/A + linux-firmware1.117 RfKill: - 0: hci0: Bluetooth - Soft blocked: no - Hard blocked: no + 0: hci0: Bluetooth + Soft blocked: no + Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/05/08 dmi.bios.vendor: Apple Inc. dmi.bios.version: MB31.88Z.008E.B02.0803051832 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Mac-F22788C8 dmi.board.vendor: Apple Inc. dmi.board.version: PVT dmi.chassis.asset.tag: Asset Tag# dmi.chassis.type: 2 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F22788C8 dmi.modalias: dmi:bvnAppleInc.:bvrMB31.88Z.008E.B02.0803051832:bd03/05/08:svnAppleInc.:pnMacBook3,1:pvr1.0:rvnAppleInc.:rnMac-F22788C8:rvrPVT:cvnAppleInc.:ct2:cvrMac-F22788C8: dmi.product.name: MacBook3,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1264426 Title: Appletouch driver moves cursor in steps Status in “linux” package in Ubuntu: Confirmed Bug description: When using the appletouch driver on a Macbook 3,1, the cursor moves in noticeable horizontal or vertical 'steps'. This is particularly noticeable when dragging a diagonal line. This can make the trackpad very difficult to use, as it becomes hard to hone in on small objects, particularly if the user has opted for a faster cursor. This issue is also described in a forum thread:
