I'd like to perform a reverse bisect to figure out which commit upstream fixes this regression. It would be very helpful to know the last kernel that had this issue and the first kernel that did not.
Can you test the following kernels and report back? We are looking for the earliest kernel version that doesn't have this bug: v3.16: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.16-utopic If v3.16 exhibits the bug then test v3.17-rc5: v3.17-rc5: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.17-rc5-utopic/ If v3.16 does not exhibit the bug then test v3.15: v3.15: http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.15-utopic/ You don't have to test every kernel, just up until the first kernel that does not have this bug. Thanks in advance! -- 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/1359997 Title: Touchpad of HP Chromebook 14 no longer works with latest kernel Status in “linux” package in Ubuntu: Confirmed Bug description: After the recent upgrade to the 3.13.0-34 kernel the touchpad on the HP Chromebook 14 with Ubuntu 14.04 installed via chrubuntu no longer works. By booting up with the previous version of the kernel which is 3.13.0-32, the touch pad works fine. $ lsb_release -rd Description: Ubuntu 14.04.1 LTS Release: 14.04 With version 3.13.0-32 lshw returns the following for the serial ports: *-serial:0 description: Serial bus controller product: Lynx Point-LP I2C Controller #0 vendor: Intel Corporation physical id: 15.1 bus info: pci@0000:00:15.1 version: 04 width: 32 bits clock: 33MHz capabilities: pm bus_master cap_list configuration: driver=i2c-designware-pci latency=0 resources: irq:21 memory:e051a000-e051afff memory:e051b000-e051bfff *-serial:1 description: Serial bus controller product: Lynx Point-LP I2C Controller #1 vendor: Intel Corporation physical id: 15.2 bus info: pci@0000:00:15.2 version: 04 width: 32 bits clock: 33MHz capabilities: pm bus_master cap_list configuration: driver=i2c-designware-pci latency=0 resources: irq:21 memory:e051c000-e051cfff memory:e051d000-e051dfff whereas with 3.13.0-34 it returns: *-serial:0 UNCLAIMED description: Serial bus controller product: Lynx Point-LP I2C Controller #0 vendor: Intel Corporation physical id: 15.1 bus info: pci@0000:00:15.1 version: 04 width: 32 bits clock: 33MHz capabilities: pm bus_master cap_list configuration: latency=0 resources: memory:e051a000-e051afff memory:e051b000-e051bfff *-serial:1 UNCLAIMED description: Serial bus controller product: Lynx Point-LP I2C Controller #1 vendor: Intel Corporation physical id: 15.2 bus info: pci@0000:00:15.2 version: 04 width: 32 bits clock: 33MHz capabilities: pm bus_master cap_list configuration: latency=0 resources: memory:e051c000-e051cfff memory:e051d000-e051dfff --- ApportVersion: 2.14.1-0ubuntu3.3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: odysseas 1667 F.... pulseaudio /dev/snd/controlC0: odysseas 1667 F.... pulseaudio DistroRelease: Ubuntu 14.04 MachineType: Hewlett-Packard Falco Package: linux (not installed) ProcEnviron: TERM=xterm PATH=(custom, no user) SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-34-generic root=UUID=da0a2ba1-af5e-4893-9a16-bec85f4d2a2f ro quiet splash=verbose ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.13.0-34-generic N/A linux-backports-modules-3.13.0-34-generic N/A linux-firmware 1.127.5 Tags: trusty Uname: Linux 3.13.0-34-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 10/18/2013 dmi.bios.vendor: coreboot dmi.chassis.type: 3 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvncoreboot:bvr:bd10/18/2013:svnHewlett-Packard:pnFalco:pvr1.0:cvnHewlett-Packard:ct3:cvr: dmi.product.name: Falco dmi.product.version: 1.0 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1359997/+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
