← Back to team overview

kernel-packages team mailing list archive

Re: [Bug 1514102] Re: Intermittent graphics corruption


Hi Christopher,

On 13 November 2015 at 00:56, Christopher M. Penalver <
christopher.m.penalver@xxxxxxxxx> wrote:

> While you are welcome to do that as a test (as the release and
> architecture are supported downstream via the L/Ubuntu Community), it
> wouldn't be recommended to use a i386 architecture going forward as it
> is deprecated upstream.
That's quite worrying as a fair number of my friends use 32 bit CPUs.
However, to be more accurate, they tend to be some kind of Pentium or Atom.
Will the 586 CPUs still be supported in future releases of  Lubuntu Linux?

> Despite this, Could you please test the latest upstream kernel available
> from the very top line at the top of the page from
> http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D (the release
> names are irrelevant for testing, and please do not test the daily
> folder)? Install instructions are available at
> https://wiki.ubuntu.com/Kernel/MainlineBuilds . This will allow
> additional upstream developers to examine the issue.
OK, done that.

Short story: Bug still present.

Long story:
To give you peace of mind, here are the details of the kernel I installed
and ran...

contact@aristotle:~$ uname -a
Linux aristotle 4.3.0-040300-generic #201511020949 SMP Mon Nov 2 14:50:44
UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

contact@aristotle:~$ lsb_release -a
No LSB modules are available.
Distributor ID:    Ubuntu
Description:    Ubuntu 15.10
Release:    15.10
Codename:    wily

And here is the info displayed when I installed the above 4.3.0-etc
contact@aristotle:~$ cd new-kernels/
contact@aristotle:~/new-kernels$ ls
contact@aristotle:~/new-kernels$ sudo dpkg -i *.deb
[sudo] password for contact:
Selecting previously unselected package linux-headers-4.3.0-040300-generic.
(Reading database ... 191898 files and directories currently installed.)
Preparing to unpack
linux-headers-4.3.0-040300-generic_4.3.0-040300.201511020949_amd64.deb ...
Unpacking linux-headers-4.3.0-040300-generic (4.3.0-040300.201511020949) ...
Selecting previously unselected package linux-image-4.3.0-040300-generic.
Preparing to unpack
linux-image-4.3.0-040300-generic_4.3.0-040300.201511020949_amd64.deb ...
Unpacking linux-image-4.3.0-040300-generic (4.3.0-040300.201511020949) ...
dpkg: dependency problems prevent configuration of
 linux-headers-4.3.0-040300-generic depends on linux-headers-4.3.0-040300;
  Package linux-headers-4.3.0-040300 is not installed.

dpkg: error processing package linux-headers-4.3.0-040300-generic
 dependency problems - leaving unconfigured
Setting up linux-image-4.3.0-040300-generic (4.3.0-040300.201511020949) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal
4.3.0-040300-generic /boot/vmlinuz-4.3.0-040300-generic
run-parts: executing /etc/kernel/postinst.d/initramfs-tools
4.3.0-040300-generic /boot/vmlinuz-4.3.0-040300-generic
update-initramfs: Generating /boot/initrd.img-4.3.0-040300-generic
run-parts: executing /etc/kernel/postinst.d/pm-utils 4.3.0-040300-generic
run-parts: executing /etc/kernel/postinst.d/unattended-upgrades
4.3.0-040300-generic /boot/vmlinuz-4.3.0-040300-generic
run-parts: executing /etc/kernel/postinst.d/update-notifier
4.3.0-040300-generic /boot/vmlinuz-4.3.0-040300-generic
run-parts: executing /etc/kernel/postinst.d/zz-update-grub
4.3.0-040300-generic /boot/vmlinuz-4.3.0-040300-generic
Generating grub configuration file ...
Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT
is set is no longer supported.
Found linux image: /boot/vmlinuz-4.3.0-040300-generic
Found initrd image: /boot/initrd.img-4.3.0-040300-generic
Found linux image: /boot/vmlinuz-4.2.0-18-generic
Found initrd image: /boot/initrd.img-4.2.0-18-generic
Found linux image: /boot/vmlinuz-4.2.0-16-generic
Found initrd image: /boot/initrd.img-4.2.0-16-generic
Found memtest86+ image: /boot/memtest86+.elf
Found memtest86+ image: /boot/memtest86+.bin
Errors were encountered while processing:

Also, try as I might, I couldn't get a boot menu listing the different
kernels on boot up. Tried pressing left shift or right shift, to no avail.

HTH :)

Is there anything else I can do for you?



-- ACCU - Professionalism in programming - http://www.accu.org
-- My writing - https://sites.google.com/site/ianbruntlett/
-- Free Software page -

You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.

  Intermittent graphics corruption

Status in linux package in Ubuntu:

Bug description:
  Every so often the screen would be corrupted with horizontal lines of

  WORKAROUND: Add to /etc/default/grub GRUB_CMDLINE_LINUX nomodeset:
  sudo update-grub

  Now the system will only allow VGA 640x480 graphics.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: xorg 1:7.7+7ubuntu4
  ProcVersionSignature: Ubuntu 4.2.0-17.21-generic 4.2.3
  Uname: Linux 4.2.0-17-generic x86_64
  ApportVersion: 2.19.1-0ubuntu4
  Architecture: amd64
  CurrentDesktop: LXDE
  Date: Sat Nov  7 18:44:01 2015
  InstallationDate: Installed on 2015-11-07 (0 days ago)
  InstallationMedia: Lubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to: