Update Linux Kernel 3.6.8 In Ubuntu 12.10/12.04 and Linux Mint 14/13

Last couple of days I was fighting with Ubuntu. First faced HDMI video problem, after defeat that issue, faced HDMI audio problem!!! When I recover that issue I find that my internal microphone of laptop is not working. Here I introduced with ALSA and found that there may be some issue with kernel which is recently updated. So I tried booting with lower kernel and found everything OK (Sound and microphone both).

Then after some googling I found that Linux Kernel update a stable kernel 3.6.8 on 26th November 2012. Linux Kernel 3.6.8 has been made available recently which brings more bug fixes for iSCSI and ALSA sound, IPV4 improvements, and some other bug fixes. So I think its time to upgrade myself 🙂

Here are some of the changes and fixes taken from the ChangeLog:

  •     ALSA: usb-audio: Fix crash at re-preparing the PCM stream
  •     ALSA: hda – Fix invalid connections in VT1802 codec
  •     ALSA: hda – Fix empty DAC filling in patch_via.c
  •     ALSA: HDA: Fix digital microphone on CS420x
  •     tcp: fix retransmission in repair mode
  •     ext4: fix metadata checksum calculation for the superblock
  •     ipv4/ip_vti.c: VTI fix post-decryption forwarding
  •     USB: usb_wwan: fix bulk-urb allocation
  •     USB: keyspan: fix typo causing GPF on open
  •     Revert “serial: omap: fix software flow control”
  •     selinux: fix sel_netnode_insert() suspicious rcu dereference
  •     PCI/PM: Fix proc config reg access for D3cold and bridge suspending
  •     intel-iommu: Fix lookup in add device
  •     net-rps: Fix brokeness causing OOO packets
  •     ARM: at91/AT91SAM9G45: fix crypto peripherals irq issue due to sparse irq support
  •     ARM: imx: ehci: fix host power mask bit
  •     ARM: dt: tegra: fix length of pad control and mux registers
  •     reiserfs: Fix lock ordering during remount
  •     netfilter: nf_conntrack: fix rt_gateway checks for H.323 helper
  •     KVM: x86: Fix invalid secondary exec controls in vmx_cpuid_update()
  •     r8169: Fix WoL on RTL8168d/8111d.
  •     Bluetooth: Fix having bogus entries in mgmt_read_index_list reply

Linux Kernel 3.6.8 Installation

To install Linux kernel 3.6.8 under Ubuntu 12.10/12.04/11.10 or Linux Mint 14/13 or older, open the terminal and issue these commands at your own risk 🙂

cd /tmp

wget http://dl.dropbox.com/u/47950494/upubuntu.com/linux-kernel-3.6.8 -O linux-kernel-3.6.8

chmod +x linux-kernel-3.6.8

sudo sh linux-kernel-3.6.8

sudo reboot

Uninstalling Kernel 3.6.8

Via the terminal, you can remove Linux Kernel 3.6.8 with this command:

sudo apt-get purge linux-image-3.6.8*

Now I am over fresh kernel and my sound issue is resolve 🙂

Happy Computing with Ubuntu Linux…

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