This bug was fixed in the package linux - 3.0.0-19.33
---
linux (3.0.0-19.33) oneiric-proposed; urgency=low
[Luis Henriques]
* Release Tracking Bug
- LP: #985736
[ Luis Henriques ]
* SAUCE: ite-cir: postpone ISR registration
- LP: #984387
linux (3.0.0-19.32)
Apologies, I followed the instructions and enabled the oneiric-proposed
sources in the ubuntu software centre.
Running the update manager, listed updates contain vers 3.0.0-19, not
3.0.0-18.
I tried 3.0.0-19 generic, it works, no evidence of the duplicate bug
(955571) -- flickering screen.
** Branch linked: lp:ubuntu/lucid-proposed/linux-lts-backport-oneiric
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Title:
Display problem (thin fading white vertical lines) after kernel
** Branch linked: lp:ubuntu/oneiric-proposed/linux-ti-omap4
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to
I confirm Andrew's report: 3.0.0-18.31 verified and working
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to
3.0.0-18.31 also works for me.
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to 3.0.0.15, no login window
To
This bug is awaiting verification that the kernel for Oneiric in
-proposed solves the problem (3.0.0-18.31). Please test the kernel and
update this bug with the results. If the problem is solved, change the
tag 'verification-needed-oneiric' to 'verification-done-oneiric'.
If verification is not
I got here via the now duplicate Bug #926325. Upgrading to linux-image
3.0.0-18.31 from -proposed solved the problem for me. Tag changed --
thanks!
** Tags removed: verification-needed-oneiric
** Tags added: verification-done-oneiric
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I am still getting this bug with kernel 3.0.0.17
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to 3.0.0.15,
The fix hasn't yet been released for oneiric. It's queued up for
3.0.0.18. You should see a request to test the proposed kernel posted
here soon; please do test and respond back when that happens to ensure
the fix is included.
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Thanks Seth. I installed your kernel and it works. Thanks for all your
and Scott's efforts on this.
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https://bugs.launchpad.net/bugs/925350
Title:
Display problem (thin fading white
Hey Seth and Scott,
Everything seems to be working as expected with Seths' -16 kernels
posted on the previous link! Bug no longer present.
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Title:
** Changed in: linux (Ubuntu)
Status: Incomplete = In Progress
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Seth Forshee (sforshee)
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** Description changed:
+ == SRU Justification ==
+
+ Impact: An i915 regression in 3.0.0-15.24 causes some systems to have
+ display issues. An unsigned value is being treated as signed, causing
+ the SSC being used when it shouldn't be.
+
+ Fix: Upstream backport that changes the type of the
** Also affects: linux (Ubuntu Oneiric)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Oneiric)
Status: New = Fix Committed
** Changed in: linux (Ubuntu Oneiric)
Importance: Undecided = Medium
** Changed in: linux (Ubuntu Oneiric)
Assignee: (unassigned)
** Changed in: linux (Ubuntu)
Status: In Progress = Fix Released
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Title:
Display problem (thin fading white vertical lines) after kernel
I sat staring at this code for a long time, scratching my head as to how the
patched code could behave differently. Finally, after a bit of Googling, the
problem is pretty apparent now. The problem is that an unsigned integer is
being initialized with a negative number. Thus, the test
Good find, Scott! Hard to believe we missed it earlier.
I put up a test build with that patch backported. wild_oscar, please
test and verify it fixes your bug (ensure you are not passing any value
for i915.lvds_use_ssc when you test). Thanks!
Any news on this bug?
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to 3.0.0.15, no login window
To manage
Hi Seth,
With the broken kernel, try each of the following options by modifying
the kernel command line in grub. Report back which work and which don't.
i915.lvds_use_ssc=0
i915.lvds_use_ssc=1
i915.lvds_use_ssc=-1
I can boot with 0! 1 and -1 don't work.
As for the ssh, yes, that was
seth: The value is currently set to 1.
Grub doesn't have any setting with that name (it isn't the backlight
option set to vendor, is it?).
Modprobe has a few blacklist files:
alsa-base.conf blacklist-modem.conf
blacklist-ath_pci.conf blacklist-oss.conf
blacklist.conf
wild_oscar: Was that with a working kernel or the broken one? It looks
like I wasn't very clear, sorry about that. If possible what I'd really
like to know is the value in the broken kernel. I realize that can be
challenging though. Would it be possible for you to ssh into the machine
to read the
Seth:
It was with the working kernel - set #9 in this bug report, actually - the
kernel with your commit reverted.
I tried with the broken one, both by ssh-ing and connecting it to an
external monitor, but had no luck: could not ssh into the machine and
the external monitor displayed a black
On Wed, Feb 15, 2012 at 10:38:54PM -, wild_oscar wrote:
Seth:
It was with the working kernel - set #9 in this bug report, actually - the
kernel with your commit reverted.
I missed that there was a build with only this commit reverted. So I
guess it must be the right commit...
I tried
** Changed in: linux (Ubuntu)
Status: Confirmed = Incomplete
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Title:
Display problem (thin fading white vertical lines) after kernel
It's odd that this commit would be identified as the culprit, unless
you're supplying some value to the i915.lvds_use_ssc module parameter.
This commit changes the meaning of this parameter from use SSC if the
bios says we should to force the use of SSC no matter what the bios
says.
What's the
This #9 works.
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to 3.0.0.15, no login window
To manage
Okay, I'll try to flag down a Ubuntu kernel developer.
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to
http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-
oneiric.git;a=commit;h=7364b6846869128f98050a16213580195edffbba
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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Not working either!
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to 3.0.0.15, no login window
To manage
Okay, it looks like 7364b6846869128f98050a16213580195edffbba is the
first bad commit:
commit 7364b6846869128f98050a16213580195edffbba
Author: Keith Packard kei...@keithp.com
Date: Mon Sep 26 16:09:45 2011 -0700
drm/i915: Allow SSC parameter to override VBT value
BugLink:
Just to be 100% sure, I just built a kernel (#9) with just the above
commit reverted. Can you give it a try?
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Title:
Display problem (thin
Lucky #7 is crappy #7 - this one doesn't work either!
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to
I lied, it looks like there is one more to test. I'll build it shortly.
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Title:
Display problem (thin fading white vertical lines) after kernel
Okay, kernel #8 is ready...
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to 3.0.0.15, no login window
To
Kernel 7 posted. I think this should be the last one. :)
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to
Kernel 6 works too.
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to 3.0.0.15, no login window
To manage
This one works!
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to 3.0.0.15, no login window
To manage
Kernel 6 posted. Git is telling me that there should be only 1 or 2
more after this. :)
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Title:
Display problem (thin fading white vertical
The kernel 4 doesn't work either.
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to 3.0.0.15, no login window
Okay, next kernel posted.
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to 3.0.0.15, no login window
To
@Scott: same result with this set: thin line/no login
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to
Okay, next kernel posted.
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to 3.0.0.15, no login window
To
Scott, jakpot: that 2nd set of test kernels yields the thin line/no
login screen issue!
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Title:
Display problem (thin fading white vertical
spell freak mode*Jackpot /spell freak mode
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to 3.0.0.15, no
Okay, still a few more to test. Next round of kernels posted.
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade
@Scott,
Thank you.
I am trying to give them a go, just a couple of questions:
- what's the difference between the 3.0.0.15 and the 3.0.0.15-generic?
I'm running Linux asus 3.0.0-14-generic #23-Ubuntu SMP Mon Nov 21
20:34:47 UTC 2011 i686 i686 i386 GNU/Linux
- This means the amd64 ones won't
@wild_oscar,
Yes, my bad. I didn't ask you whether you were using a 32-bit or 64-bit
system. I'll recompile for 32-bit.
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Title:
Display
Thank you very much for your help so far.
Tell me when it's uploaded.
Also - and so I understand these kernel packages better - could you tell
me the difference between the packages? Do I need to install them all?
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The linux-image is the actual linux kernel binary package. The other
two packages contain kernel header files - I think they are used mainly
if you have any kernel modules that get compiled automatically upon
kernel installation. Yes, I believe you do need to install them all
(linux-image
i386 packages posted. Please give them a try.
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to 3.0.0.15, no
@Scott
Looks good!
- The thin line issue is not present in this kernel
- It seems the screensaver dimlight issue is also not present
Thanks!
Maybe you can suggest your commit so that the repository kernels are
fixed too?
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Unfortunately, we don't yet know which commit caused the problem. There
are about half a dozen more kernels to try before we will be able to
identify the problem. The next one is compiling right now. I'll let
you know when it is ready.
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Next set of test kernels are posted. Same address as above.
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Title:
Display problem (thin fading white vertical lines) after kernel
upgrade to
Hi, I posted a first set of test kernel packages at the address below. Please
give them a try and let me know the results.
http://www.techie.net/~talbert/925350/
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