kernel-packages team mailing list archive

[Odysseas Pentakalos <odysseas@xxxxxxxxxxxxx>]

Public bug reported:

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

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "version.log"
   https://bugs.launchpad.net/bugs/1359997/+attachment/4184110/+files/version.log

-- 
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:
  New

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

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1359997/+subscriptions