** Tags removed: performing-bisect
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Title:
12.10 quantal boots to black screen on iMac
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Still no resolution of this problem. I have used kernel 3.8.0 under ubuntu
13.04 and am now using kernel 3.7.9 under archlinux.
Can boot both OK, using 'nomodeset'. But both still resume to the wrong screen.
The log tells me that the kernel, when it starts to sleep, tries to save state
with
Problems still present on latest kernel, 3.5.0-16-generic.
- nomodeset kernel param is necessary to get a boot screen.
- xorg.conf must have Device as fbdev or get black screen when X starts.
-- However, fbdev gives quite good enough performance for me.
- Suspend works but resume is always to
Results so far (using grub2, with manual edits to boot params to load these
kernels):
### kernel 3.2.0-030200rc6-generic (16 Dec 2011)
Used nomodeset as boot param.
suspend from menu does not stop system - black screen with blinking cursor on
vt1, white screen on vt7 until mouse click, then
I can do the testing you requested over the next few days.
Can I suggest I start with kernels 3.2.0.10 vs 3.4, since I know that
some time during kernel 3.2 development suspend/resume started working
properly (see bug#863969, comment on 25 Jan 2012, kernel 3.2.0.10.10).
Kernel 3.4.4, in archlinux
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.5kernel[0] (Not a kernel in the daily directory) and install both the
linux-image and linux-image-extra .deb packages.
Once you've tested the
Actually, v3.5-rc7 is available, it would be great if you could test
that version:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.5-rc7-quantal/
** Changed in: linux (Ubuntu)
Importance: Undecided = High
** Changed in: linux (Ubuntu)
Status: Confirmed = Incomplete
** Tags added:
It just happens I can do this now...
Am running kernel 3.5.0-030500rc7-generic now but it behaves just like the
other kernels I have tried. Earlier today I raised a kernel bug report #44851
at bugzilla.kernel.org - pointing at suspend/resume, but I think its the same
thing.
I will do the
I'd like to perform a kernel bisect to identify the commit that caused
this regression. Would it be possible for you to assist by testing some
kernels? If so, we need to first identify the kernel version that
introduce the regression, then we can bisect down to the actual commit.
Can you start
** Changed in: linux
Status: Unknown = Confirmed
** Changed in: linux
Importance: Unknown = Medium
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Title:
12.10 quantal boots to
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https://bugs.launchpad.net/bugs/1024507
Title:
12.10 quantal boots to black screen on iMac
To manage notifications about this bug go to:
The same behaviour is observed on my iMac system when I boot archlinux (kernel
3.4.4) on another partition.
In that case I needed to set 'radeon mode=0' in the modules.conf file to allow
me to see anything on the main screen, even text. The default setting was
mode=1.
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** Package changed: xorg (Ubuntu) = linux (Ubuntu)
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Title:
12.10 quantal boots to black screen on iMac
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** Changed in: linux (Ubuntu)
Status: New = Confirmed
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Title:
12.10 quantal boots to black screen on iMac
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