@pelle.k -- that dump from /sys implies the driver did not find any
connectors for the card ... hrm
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Title:
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** Attachment added: dmidecode
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/542660/+attachment/1783161/+files/dmidecode.txt
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This is still an issue. I tried (kubuntu) natty-desktop-amd64+mac.iso from
2011-01-03 on a 27 inch iMac with Radeon 4850 (iMac11,1). Unfortunately, i have
no external LCD, so i can't help you with the output of /sys/class/drm/card0.
However, i did boot the livecd with vesa graphics, and this is
I can confirm this issue.
Tried with Natty daily build. Black screen after choosing to try Ubuntu.
Installation with the alternate CD works, but still a black screen after
booting the first time.
I've tried with the following CD's:
-Kubuntu Natty Daily Desktop AMD64
-Kubuntu Natty Daily Desktop
@artik -- if you are able to use the second screen on the live CD it
would be good to get the dmesg output and the contents of all of the
files in /sys/class/drm/card0, we may be able to work out why it thinks
there is no output for the LVDS.
If only apple would publicise their physical
Hi Andy, Hi Jisaac. A pretty strange thing is the most bugs are
regressives. Display worked fine in Karmic, Blutooth worked fine on
Lucid, and microphone was low in lucid, and totally muted in maverick
(need to use the Jisaac's trick to bost it more than 300% to get a
normal Microphone).
Most
@jisaac -- once installed using the alternative CD are you then able to
use the system suscessfully?
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Title:
New Apple iMac
I could not use Unity although the ATI Drivers were installed. I had to
switch to the classic desktop session. Natty's classic desktop is still
very buggy so I'm now using Maverick.
I'm having a lot of problems to make my iMac working smoothly with
Ubuntu. I'm reporting each issue on launchpad
Still happening with 11.04 Alpha 1 (blank screen). I had to install it with the
Alternate CD.
Let me know if you need more information.
Regards.
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** Changed in: linux (Ubuntu Natty)
Milestone: maverick-updates = None
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Title:
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Could those of you with this issue please test with the latest Natty
daily CD image and confirm whether that still has the issue. There are
a lot of upstream fixes which are now in the Natty kernel. Those images
can be found here:
http://cdimage.ubuntu.com/daily-live/current/
Please report
Good evening Andy, as you can see I'm on this topic everyday, hoping
something will help us, and thank to suggest us some things to test !
Unfortunatly, the last daily builds still doen't works, and output still
switch to the second screen after selecting try ubuntu without change
anything on
** Also affects: linux (Ubuntu Natty)
Importance: High
Assignee: Andy Whitcroft (apw)
Status: Confirmed
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Also noticed similiar problem on Foxconn Nettop D510 - system has a
phantom screen, i.e. look at monitor settings and it shows the real
monitor as Monitor 2 and Monitor 1 (aka the primary) is
nonexistent but appears.
On boot up the screen is blank as it is driving the phantom monitor.
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I tried all patches or fix on lucid, maverick, nothing make the screen
working. Also tried the lastest kernel, but nothing.
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** Changed in: ubuntu-release-notes
Status: Fix Released = Confirmed
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** Changed in: ubuntu-release-notes
Status: Confirmed = Fix Released
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Same here on a 27 iMac (i7). It seems that the last Maverick build is
previous to the fix. Robbie, let us know.
Thanks.
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Ah, hold on -- I see what the 'fix' was. The black-screen bug was put into
the release notes by Robbie, which doesn't fix the bug, but does at least have
it documented for Maverick. This is consistent with Andy's comments.
This bug will need to be moved to Natty Narwhal (11.04). If a
Robbie, I just downloaded and attempted an install of 10.10 final on a
27 iMac (core i5). I still get the 'black screen' issue. Can you add
more information on what the released fix is?
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On Sun, 2010-10-10 at 18:45 +, Martin Bogomolni wrote:
Robbie, I just downloaded and attempted an install of 10.10 final on a
27 iMac (core i5). I still get the 'black screen' issue. Can you add
more information on what the released fix is?
I too have just upgraded and lost my screen
** Also affects: ubuntu-release-notes
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Maverick)
Milestone: ubuntu-10.10 = maverick-updates
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** Changed in: ubuntu-release-notes
Status: New = In Progress
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** Changed in: ubuntu-release-notes
Status: In Progress = Fix Released
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** Also affects: linux (Ubuntu Maverick)
Importance: High
Assignee: Andy Whitcroft (apw)
Status: Incomplete
** Changed in: linux (Ubuntu Maverick)
Status: Incomplete = Confirmed
** Changed in: linux (Ubuntu Maverick)
Milestone: None = ubuntu-10.10
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Just tested with 10.10 Release Candidate. Kernel still contains the
bug, black screen on startup, wrong display port display is selected.
Andy, is there any further work on this issue continuing before 10.10
release?
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Thanks Martin for report It seems final release will have this bug.
Someone @ ubuntu team or kernel dev can buy an Imac ? lol
Also, to trying solve this so important bug, I'm looking to change the graphic
card with a nvidia one. But it seems it's not compatible with Imac27.
Let's wait,
Issue is definetly in the kernel. I'm so surprised that after all
comments (and it's a regression) this bug is not fixed.
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I tested Ubuntu 10.10 daily build as of 2010.09.19 and I still get the
blank screen. (I don't have an adapter to plug in a second screen as
artik suggested above.)
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Shit jisaac :'( Tried too... the issue is in the linux kernel, all
distro made the same (suze, ...) only debian works, cause it's an old
kernel. I posted the bug here :
https://bugzilla.kernel.org/show_bug.cgi?id=16541
But not really usefull Still cross fingers for next kernel release.
By
Tested with 10.10 beta and no way... I'm still getting a blank screen on
my iMac 27 i7 :(
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Tested with Maverick merkaat Alpha 3, (2.6.35-14.19 kernel), same thing,
black screen on startup (display switch to mini display port).
What a nightmare ...
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** Changed in: linux (Ubuntu)
Milestone: lucid-updates = None
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The patch referred to in comment #24 is now in the Maverick kernel,
could those of you affected by this issue test that kernel and report
back here. The patch is is kernel Ubuntu-2.6.35-11.16 and later. This
kernel can be found at the URL below, and should be installable on
Lucid:
Andy, I try now, does this release :
maverick-desktop-i386.iso26-Jul-2010 08:07 685M Desktop CD for PC
(Intel x86) computers (standard download)
Contain the good linux image ?
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You received
After tested 2 kernels, result is the same. Both lucid (and maverick)
stay with black screen on startup, even after the patch, or kernel
upgrade. I tried :
http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/current/
and
http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.35-rc6-maverick/
The
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Andy Whitcroft (apw)
** Changed in: linux (Ubuntu Lucid)
Assignee: (unassigned) = Andy Whitcroft (apw)
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Ok the fix mentioned by Bryce seems to be included in the mainline
kernels as of v2.6.35-rc4. Could those of you affected by this bug try
downloading and installing the latest Maverick kernel 2.6.35-7.10 or
later and confirm whether this kernel will boot correctly? This kernel
should work with
Note that this commit has a different sha1 in mainline:
commit 9f998ad7e92a1653b6b396b1278e75560a8be519
Author: Alex Deucher alexdeuc...@gmail.com
Date: Mon Mar 29 21:37:08 2010 -0400
drm/radeon/kms: minor fixes for eDP with LCD* device tags (v2)
Some systems have LCD* rather
As i reported here : https://bugs.launchpad.net/ubuntu/+source/linux/+bug/597070
It's not really black screen, it's the video output that switch to the mini
display port output. If you plug a second screen on the mini display port, you
can install ubuntu normally using this 2nd screen.
Really
** Also affects: linux
Importance: Undecided
Status: New
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I am having the same problem, I have a iMac 27 2.66QC/2X2GB/1TB/4850 -
512MB/SD/WLMKB
I put the disk in, install it in windows, reboot, black for a long time as it
instills ubuntu, then reboot's again, then black screen the hole time, stop's
loading but still a black screen, So I press Power
Hi jka,
I can't find any information in the forum link you posted. Can you give
a more specific link?
Can you tell me, wether this bug would also stop me from upgrading to
lucid lynx?
Thanks!
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You
** Tags added: kernel-graphics kernel-reviewed
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Benno - It's probably worth asking or searching the question in that
forum (http://ubuntuforums.org/forumdisplay.php?f=328). 'Has anyone
installed Lucid 10.04 on a i5,i7 iMac 11,1 or 27 '.
Gismo also indicated his workaround in #12 up above.
As to the specific postings where this was discussed
I think the most annoying thing about ubuntu or any version there of is
the lack of people able to write a step by step process of what they
did. Everyone just assumes that you know what you are talking about.
So much implied knowledge in these forums that you get lost in what
worked, what didn't
Dolanar - While I can understand your frustration, At the moment this
bug is pure trial and error and by its human nature may appear
'programmer savvy' even unstructured, For me this is bug is associated
with So many outstanding ATI HD problems. For a forum style format
maybe you want to aim
method of install by @gismo confirmed working Ubuntu 10.04 (64-bit)
MacPro 3,1
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Also same Problem, using the normal AMD64 DVD and adding
radeon.modeset=0 nomodeset to boot parameters showed me a weired boot
splash but than the screen gets black and I can't even change to
console.
Will try with alternate CD
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I had the same problem on my iMac 27 but found a workaround for me:
* installed Ubuntu 10.04 (32 bit) with the text based installer (alternate-i386
CD)
* select the recovery mode and added radeon.modeset=0 nomodeset to the boot
options (the line with linux ...)
* the recovery mode detected
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