*** This bug is a duplicate of bug 745112 ***
https://bugs.launchpad.net/bugs/745112
Several other testers have found that drm-intel-next-proposed solves it.
There is a similar bug against sandybridge (#761065) which was isolated
down to 4 kernel patches recently, provided in this test
*** This bug is a duplicate of bug 745112 ***
https://bugs.launchpad.net/bugs/745112
(Hmm, actually 737891 is a bit of a mess; I'll dupe to a more
appropriate one.)
** This bug has been marked a duplicate of bug 745112
[arrandale] desktop is messed up (goes black) when laptop is docked
** Tags added: black-screen
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https://bugs.launchpad.net/bugs/747205
Title:
[arrandale] Black screen on all outputs when external VGA is connected
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Triaged = Incomplete
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Title:
[arrandale] Black screen on
Here is another thing to test. This is a package of the current Intel
drm experimental kernel tree:
http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-next-proposed/
Please test the patched X driver in the previous comment first, then if
that doesn't do it, revert back to stock -intel
On Mon, Apr 18, 2011 at 07:18:37PM -, Bryce Harrington wrote:
Looking at the dupes, it appears apport is noticing the gpu lockup that
occurred with the original bug report and duping gpu lockups with the
same signature.
So, quite potentially there were two separate bugs going on:
a)
** Tags added: kernel-key
** Changed in: linux (Ubuntu)
Status: New = Triaged
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
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I have seen issues with Unity when the overall width of the combined
screens exceeds the underlying hardware texture limit. Could you post
the output of the (non-destructive) command below please (which would
need running in a terminal window):
glxinfo -l | grep GL_MAX_TEXTURE_SIZE
Thanks.
The internal laptop display is 1440x900 and the external monitor is
1920x1200
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Title:
[arrandale] Black screen on all
** Attachment added: intel_regs_before.txt
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/747205/+attachment/2068099/+files/intel_regs_before.txt
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** Attachment added: intel_regs_after.txt
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/747205/+attachment/2068131/+files/intel_regs_after.txt
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GL_MAX_TEXTURE_SIZE = 4096
** Attachment added: glxinfo output
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/747205/+attachment/2068095/+files/glxinfo.txt
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** Attachment added: xrandr with the external monitor connected
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/747205/+attachment/2068096/+files/xrandr.txt
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--- intel_regs_before.txt 2011-04-19 16:35:21.0 +0100
+++ intel_regs_after.txt2011-04-19 16:36:05.0 +0100
@@ -11,27 +11,27 @@
DISPLAY_PORT_PLL_BIO: 0x
DISPLAY_PORT_PLL_BIO: 0x
FDI_PLL_FREQ_CTL: 0x00053687
- PIPEACONF: 0xc054
By running xrandr --auto when it's in the broken state, I can get the
backlight to turn back on, and a mouse cursor appears, but no windows
are drawn.
Something similar happens when I suspend and resume, but the mouse
cursor appears over a text console background.
I'm still able to type into my
I'm able to get the internal display back to normal by restarting the X
server from a text console.
At all points I've checked (before connecting external display, after
connecting external display, after switching to text console, after
restarting X) the i915_error_state sysfs file reads no
Here's what i915_gem_seqno is doing (there are two, in dri/0 and
dri/64):
--- i915_gem_seqno.txt.old 2011-04-19 17:07:54.0 +0100
+++ i915_gem_seqno.txt 2011-04-19 17:08:10.0 +0100
@@ -1,12 +1,12 @@
-Current sequence (render ring): 187113
+Current sequence (render ring):
As an experiment, we tried creating a new user and logging in with
Unity, and the problem vanished! It drives the external monitor just
fine.
If I then switch over to Jane's account, it exhibits the same problem.
But then I can switch back to my account, and it works again!
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On Alberto's advice on IRC, I tried moving ~/.config/monitors.xml out of
the way, and that has resolved the problem.
I'm attaching a copy of the old monitors.xml here
** Attachment added: monitors.xml
After moving monitors.xml out of the way, Jane went into the monitor
preferences and put things back the way they were (with the laptop
display switched off), the problem reoccurred.
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Copying in the old monitors.xml reliably reproduces the problem.
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https://bugs.launchpad.net/bugs/747205
Title:
[arrandale] Black screen on all outputs when
** Description changed:
Steps:
1. Connect an external monitor to the VGA port
Result:
The screen turns black, and there is no mouse pointer, etc... however, x is
still running.
Steps:
1. unplug the external montior
2. reboot
Result:
The desktop loads normally
mdz thinks this is the monitors.xml that corresponds to the test done in
comment #59.
** Attachment added: monitors.xml.new
https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/747205/+attachment/2068568/+files/monitors.xml.new
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On Tue, Apr 19, 2011 at 09:45:42AM -, Andy Whitcroft wrote:
I have seen issues with Unity when the overall width of the combined
screens exceeds the underlying hardware texture limit. Could you post
the output of the (non-destructive) command below please (which would
need running in a
Here's a patched X driver with DPMS forcing code that might work around
the kernel bug. YMMV. I'm having a few other folks on the similar
arrandale bugs test this as well.
https://launchpad.net/~bryce/+archive/elderberry
You can also try to manually flip dpms on via this command:
xset dpms
I'm going to bump this back from libdrm to -intel; given the libdrm
patch seems to not solve it, there's not a particular reason to think
the bug is in libdrm. If nothing else, the bug report will be easier to
find if it's with the other -intel reports.
** Package changed: libdrm (Ubuntu) =
On Wed, Apr 13, 2011 at 08:05:47PM -, Timothy Kross wrote:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
intel/+bug/759258 was marked as a duplicate, so it's seemingly the same
bug. I didn't plug in an external monitor though, and I didn't get a a
black screen, my got a
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
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Title:
[arrandale] Black screen on all
I've reviewed the aforementioned bug reports. It is striking they have
such similar symptoms and are mostly Arrandale/x86_64 specific, but
there are subtle differences in symptoms so I'm unsure they're all
duplicates.
There are a variety of Arrandale (aka Ironlake) kernel patches proposed
Oops. I seem to have submitted the same comment twice.
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Title:
[arrandale] Black screen on all outputs when external VGA is connected
Jeb: those are identical, but I sent one for upstream anyway.. thanks
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Title:
[arrandale] Black screen on all outputs when external VGA is
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
intel/+bug/759258 was marked as a duplicate, so it's seemingly the same
bug. I didn't plug in an external monitor though, and I didn't get a a
black screen, my got a while overlay for a few seconds, then it got back
to normal and apport
mine got a white overlay*
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Title:
[arrandale] Black screen on all outputs when external VGA is connected
I don't see anything of interest in the updated CurrentDmesg.txt or
XorgLog.txt, but hopefully I'm wrong. :-)
** Summary changed:
- [arrandale] Black screen on boot, associated with GPU lockup (ESR: 0x0001
IPEHR: 0x7a005502)
+ [arrandale] Black screen on all outputs when external VGA is
hmm right.. they don't show much of interest :/
Is there a difference if the monitor is plugged in _after_ the desktop
has loaded, will it again break once the system tries to use the screen?
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On Tue, Apr 12, 2011 at 11:45:17AM -, Timo Aaltonen wrote:
hmm right.. they don't show much of interest :/
Is there a difference if the monitor is plugged in _after_ the desktop
has loaded, will it again break once the system tries to use the screen?
What happens is:
1. Using the
I'm not sure if I understand your question, but I think the answer is no.
Specifically, I don't notice a difference in behaviour that is dependent on
when the monitor is plugged in. I get the same black screen result if I
(a) plug the monitor in before logging in (i.e., it goes black after I
On Tue, Apr 12, 2011 at 12:23:40PM -, Jane Silber wrote:
I'm not sure if I understand your question, but I think the answer is no.
Specifically, I don't notice a difference in behaviour that is dependent on
when the monitor is plugged in. I get the same black screen result if I
(a) plug
A quick update of my experience -
When booting with an external monitor connected to my laptop, I get to
the gdm login and successfully enter my password. Once the login event
starts occuring, the laptop monitor goes black and the external monitor
randomly and quickly flashes colors. I can switch
I tried mdz's suggestion from comment #31. After ctrl+alt+f7, the
screen switched to what looked like a different text console and I saw a
dozen or so status messages, the last two of which were Stopping
anac(h)ronistic cron and Starting CUPS printing spooler/server.
xrandr.txt attached.
**
Timo asked on IRC for:
intel_reg_dumper output before the problem occurs (sudo intel_reg_dumper
intel-regs-before.txt)
intel_reg_dumper output after the problem occurs (sudo intel_reg_dumper
intel-regs-after.txt)
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** Changed in: libdrm (Ubuntu)
Assignee: Bryce Harrington (bryce) = Canonical X.org (canonical-x)
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Title:
[arrandale] Black screen on
Since the bug is now open on libdrm, only the libdrm hook was run,
whereas the xserver-xorg-video-intel one was run originally. This means
you don't have the same logs, but hopefully this is what you wanted.
libdrm and -intel share the same apport hook (symlinks) so should be
good, thanks.
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Per Matt's request in comment #34 I have attached the before and after
outputs from intel_reg_dumper.
The process I followed:
Boot system to login prompt
ctrl+alt+1 to prompt, login, execute 'sudo intel_reg_dumper
intel-regs-before.txt' and exit
ctrl+alt+7 to login prompt
login, laptop screen
and here is the after file...
** Attachment added: After
https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/747205/+attachment/2027194/+files/intel-regs-after.txt
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intel/+bug/759258 was marked as a duplicate, so it's seemingly the same
bug. I didn't plug in an external monitor though, and I didn't get a a
black screen, my got a while overlay for a few seconds, then it got back
to normal and apport
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