I've made some progress in testing. I've seen three states that any
particular configuration boots into. I wrote pass for the one where the
video appears normal, fail for the one where the video appears
interlaced (also with strange colors), and blank for a third possibility
where the screen is
penalvch, I did not get very far with git bisect, would you confirm if
the following seems appropriate?
I am following the KernelBisection wiki, and the command
git log --oneline Ubuntu-3.5.0-16.25..Ubuntu-3.5.0-17.26
gives
git bisect start Ubuntu-3.5.0-17.26 Ubuntu-3.5.0-16.25
Bisecting: a
After much confusion on my part, I believe the bisect is done:
da612d880fbc598ac0efcef579355fb90d4bca4e is the first bad commit
commit da612d880fbc598ac0efcef579355fb90d4bca4e
Author: Paulo Zanoni paulo.r.zan...@intel.com
Date: Mon Aug 6 18:45:01 2012 -0300
drm/i915: add more Haswell PCI
I will definitely try your kernel. However, I am now traveling, and will
not be home to try it out until August. I am also interested in your
question of if we should expect the bugfix to be backported:
https://answers.launchpad.net/ubuntu/+question/251252
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Public bug reported:
also no sound with v3.15-rc7-utopic
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-24-generic 3.13.0-24.46 [modified:
boot/vmlinuz-3.13.0-24-generic]
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
This bug occurs in every kernel I've tried. That includes 3.13.0-24.46
from 14.4, as well as a few kernels from 13.10, and a whole bunch from
12.4. I currently use 3.15-rc7 due to a video bug that is fixed in that
kernel:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300349
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My apologies, apparently I have two sound cards and the wrong one was
default. I did spend an inordinate amount of time trying to learn about
sound problems without learning much. Finally, I got some hints from an
answer from the alsa-de...@alsa-project.org mailing list.
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Problem shows up while booting the live cd.
** Package changed: ubuntu = linux (Ubuntu)
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Title:
Intel Corporation Haswell-ULT
apport information
** Tags added: apport-collected staging trusty
** Description changed:
As discussed at http://ubuntuforums.org/showthread.php?t=2204287 the
video is terrible on ubuntu 13.10. It is horrible also on 12.04.4, but
works well on 12.04.2. By terrible, it means that it looks
apport information
** Attachment added: Lspci.txt
https://bugs.launchpad.net/bugs/1300349/+attachment/4056970/+files/Lspci.txt
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apport information
** Attachment added: IwConfig.txt
https://bugs.launchpad.net/bugs/1300349/+attachment/4056969/+files/IwConfig.txt
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apport information
** Attachment added: CurrentDmesg.txt
https://bugs.launchpad.net/bugs/1300349/+attachment/4056968/+files/CurrentDmesg.txt
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apport information
** Attachment added: RfKill.txt
https://bugs.launchpad.net/bugs/1300349/+attachment/4056976/+files/RfKill.txt
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apport information
** Attachment added: UdevLog.txt
https://bugs.launchpad.net/bugs/1300349/+attachment/4056978/+files/UdevLog.txt
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apport information
** Attachment added: ProcModules.txt
https://bugs.launchpad.net/bugs/1300349/+attachment/4056974/+files/ProcModules.txt
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apport information
** Attachment added: BootDmesg.txt
https://bugs.launchpad.net/bugs/1300349/+attachment/4056966/+files/BootDmesg.txt
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apport information
** Attachment added: CRDA.txt
https://bugs.launchpad.net/bugs/1300349/+attachment/4056967/+files/CRDA.txt
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apport information
** Attachment added: UdevDb.txt
https://bugs.launchpad.net/bugs/1300349/+attachment/4056977/+files/UdevDb.txt
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apport information
** Attachment added: ProcInterrupts.txt
https://bugs.launchpad.net/bugs/1300349/+attachment/4056973/+files/ProcInterrupts.txt
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apport information
** Attachment added: WifiSyslog.txt
https://bugs.launchpad.net/bugs/1300349/+attachment/4056979/+files/WifiSyslog.txt
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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apport information
** Attachment added: Lsusb.txt
https://bugs.launchpad.net/bugs/1300349/+attachment/4056971/+files/Lsusb.txt
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apport information
** Attachment added: PulseList.txt
https://bugs.launchpad.net/bugs/1300349/+attachment/4056975/+files/PulseList.txt
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apport information
** Attachment added: ProcCpuinfo.txt
https://bugs.launchpad.net/bugs/1300349/+attachment/4056972/+files/ProcCpuinfo.txt
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I tested SNA on 13.10 and video is bad in the same way as with UXA.
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Title:
Intel Corporation Haswell-ULT Integrated Graphics
** Tags added: kernel-bug-exists-upstream
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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Title:
Intel
Since the bug exists in the upstream v3.14 kernel[0], is there some
mechanism for sending this bug report upstream? Or, is that something I
should do?
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This bug is affecting the upstream kernel v3.15.6-utopic. It had been
fixed all the way through v3.15.5-utopic.
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Title:
8086:0a16
Also sorry about the delay.
I can confirm that http://kernel.ubuntu.com/~jsalisbury/lp1318531/ fixes
the problem.
And, the bug has made it back into the upstream kernel. See
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300349
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GortiZ, I tried the kernel posted on bug #1318531, and it does fix this
problem. I am also interested in a backport.
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Title:
This issue does still affect the latest upstream 3.13 kernel.
It affects:
kernel.ubuntu.com/~kernel-ppa/mainline/v3.13.11.6-trusty/
It also affects:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.15.7-utopic/
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.15.10-utopic/
I did the bisection again, this time on the v3.15.6 version and found that
1c46b5d7cd5d9912687a9e65626cdc24b1074ae1 is the first bad commit.
commit 1c46b5d7cd5d9912687a9e65626cdc24b1074ae1
Author: Dave Airlie airl...@redhat.com
Date: Mon Jul 14 11:04:39 2014 +1000
Revert drm/i915: reverse
I made a patch file that fixes this in the ubuntu kernel. If you are
interested in using this, use git://kernel.ubuntu.com/ubuntu/ubuntu-
trusty.git and follow wiki.ubuntu.com/Kernel/BuildYourOwnKernel with
patch -p0 fix_dp.diff
** Patch added: fix_dp.diff
http://cdimage.ubuntu.com/daily-live/current/ is affected.
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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Christopher, linux-
image-3.18.0-031800rc4-generic_3.18.0-031800rc4.201411091835_amd64.deb
is not affected.
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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Christopher, the first good commit is
344c5bbcb7a282cc59e2f111c8801106c4fe315c.
Fortunately I learned something from the first time I did this. Since
the problem was in the function intel_dp_compute_config in the file
drivers/gpu/drm/i915/intel_dp.c, there were only 4 commits to check. The
first
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