It is not a bug in the graphics driver, but in the acpi backlight
driver. It seems that Windows no longer uses the acpi backlight
controller, and as a result all the firmware seems to be broken.
** Summary changed:
- A potential fix for Intel HD 4000 graphics
+ [snb] more acpi backlight woes
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It's the read-read optimisation that was re-enabled. Not sure where the
root cause is as reproducing it reliably and quickly is tricky.
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i.e. not even sure if it is not a kernel bug.
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Title:
saucy has frequent image corruption (intel, sna)
To manage notifi
The corruption you see in the new tab panel happens when that image is
generated and stored to disk. It's debugging the corruption as it occurs
is the trick.
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** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: New => Confirmed
** Summary changed:
- External Screen doesn't wake up from sleep
+ [dp] External Screen doesn't wake up from sleep
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My guess is that there is a path with a missing sync point, like this
one:
diff --git a/src/sna/sna_accel.c b/src/sna/sna_accel.c
index 69a151c..be73e27 100644
--- a/src/sna/sna_accel.c
+++ b/src/sna/sna_accel.c
@@ -4861,6 +4861,13 @@ sna_copy_boxes(DrawablePtr src, DrawablePtr dst, GCPtr
gc,
** Bug watch added: freedesktop.org Bugzilla #61628
https://bugs.freedesktop.org/show_bug.cgi?id=61628
** Also affects: xserver-xorg-video-intel via
https://bugs.freedesktop.org/show_bug.cgi?id=61628
Importance: Unknown
Status: Unknown
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Any chance you can capture a screenshot of it? Or failing that a
photograph, and it would be very useful to know if it is not capturable.
If you can reproduce it again, you can try FORCE_FULL_SYNC again, that
would identify whether it is the same issue.
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I remembered another path that reads from a source CPU pixmap that made
a few presumptions about coherency, so please also test with 15b92c9.
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The newtab looks like this bug, and image swapping is the same (the
timing was just right to get a recognisable image of the same size).
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A couple of bisect guides:
http://www.reactivated.net/weblog/archives/2006/01/using-git-bisect-to-
find-buggy-kernel-patches/
https://wiki.ubuntu.com/Kernel/KernelBisection
If you can find the patch that introduces the random hang, that will be
extremely informative.
** Summary changed:
- Vide
Sounds like the update to xorg-edgers triggered a fallback to vesa;
something broke in the installation. I've landed a couple of patches
which I think are going to be related, so if you can verify you have a
working setup with ppa:xorg-edgers that would be great.
** Changed in: xserver-xorg-video-
Though it looks like a bug in the fuse kernel module...
** Package changed: xserver-xorg-video-intel (Ubuntu) => libreoffice
(Ubuntu)
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Can you please try with this patch:
https://patchwork.kernel.org/patch/2707341/ as it claims to fix some
instability with rc6 on SandyBridge?
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It's back: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
intel/+bug/1189850
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Title:
Images corruption in
It's a bug in the core fb implementation of Xorg.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Confirmed => Invalid
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In the short term, Option "NoAccel" "true" will prevent that bug being
hit.
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Title:
Xorg server crashes when drawing das
A more recent -intel will help here, as will an updated kernel.
** Summary changed:
- Ivybridge dual monitor set resolution crash ironlake_crtc_mode_set
+ Ivybridge dual monitor set resolution warning in ironlake_crtc_mode_set
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Looks like there is still a mux involved - a hardware switch between the
GPUs and the screen. That is preventing the igfx from detecting any
connectors, and from there it looks like things go south. (But as far as
I am aware, that should not actually prevent the driver from being
loaded - since the
No... The issue is that X considers the nvidia GPU still as the primary
and so loads VESA for it (which fails) and Intel as the secondary GPU
driver.
So the secret will be to set the mux to make Intel the primary/boot GPU
and connected to the displays.
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vgaarb and the mux driver
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Title:
X server fails to start on MacBookPro9,1 with hybrid Intel/Nvidia
graphics: no scree
I spoke to Dave Airlie and he is aware of this issue, but hasn't a clue
how to proceed given the dearth of documentation Apple (or their
component suppliers) provides - though he succeeded in getting the eDP
lit up on occasion. It is not a task I am going to do myself. You can
always ask if Maarten
You give no indication that is the same bug (the symptoms are reversed,
both are likely to be machine specific hw issues), nor any that it is a
gfx driver issue.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Confirmed => Invalid
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Can you explain how to trigger that libreoffice glitch? Looks like that
should be quite reproducible in comparison to the ff glitches (which I
haven't yet been subjected to).
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We have moved on to a new issue! That bug is fixed in drm-intel-nightly.
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Title:
Ivybridge dual monitor set resolution w
Not easily as the trick is to correlate the logs with the lagging.
tracecmd record -e i915 will give you a lot of information about what is
going on in the driver, but is not very useful without knowing where to
look.
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whi
There should be a package for monitoring CPU (and system) temperatures.
(Or you can search /sys.) If the CPU overheats it will begin to throttle
and, if need be, shut itself down before it is damaged. Those events
will be recorded in the syslog.
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The flags mismatch warning is not critical (we're missing a bit of code
to setup the pipe state correctly before the warning). Can you paste the
full dmesg with drm.debug=6?
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The most important ones would be tagged MCE (Machine Check Exception).
If the ACPI trips over a thermal threshold, you get a "Critical
threshold" event followed by a shutdown.
If MCE notices that the CPU package (CPU+GPU) is too warm, you get
""CPU[01234]: (core|package) temperature above thresho
*** This bug is a duplicate of bug 1041790 ***
https://bugs.launchpad.net/bugs/1041790
** This bug has been marked a duplicate of bug 1041790
[snb] GPU lockup IPEHR: 0x0b160001 IPEHR: 0x0b140001, workaround
i915.semaphores=0
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The error appears to be the a failure to establish the link between the
GPU and the display block:
[ 18.189110] [drm:ivb_manual_fdi_link_train] *ERROR* FDI train 1 fail!
[ 18.191270] [drm:ivb_manual_fdi_link_train] *ERROR* FDI train 2 fail!
which will result in blank outputs. Tricky, the spec
No, MTRR are obsolete on your system - superseded by PAT.
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Title:
[ivb] System freeze after high memory usage
To manage
It's means that I don't have an immediate fix for you. It is very
unlikely to be bad hw, but for the time you need to find your own
workaround (probably just keep on retrying the modeset until it randomly
works).
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Can you describe what you mean by lagging? Does the mouse move fluidly?
Is the keyboard and mouse clicks quick? Is it redrawing of applications
that slows? Perhaps glxgears shows an effect?
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I mistyped, it should have been "echo 0 | sudo tee
/sys/module/drm_kms_helper/parameters/poll"
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Title:
External monitor,
Sebastien, once 2.21.10 hits saucy, can you please let me know how we
are faring here? And please include the latest steps to trigger the bug.
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*** This bug is a duplicate of bug 1098334 ***
https://bugs.launchpad.net/bugs/1098334
** This bug has been marked a duplicate of bug 1098334
[gen4 sna] Font corruption in Chromium tab bar
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I have 3 different bug reports here without enough information to fix
one... Please do not assume that different hardware is the same bug.
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My guess is that this is
commit fc1e0702b25e647cb423851fb7228989fec28bd6
Author: Daniel Vetter
Date: Wed May 29 11:25:28 2013 +0100
sna: fixup up possible_clones kms->X impedance mismatch
We need to be a notch more careful with remapping the possible clones
mask from the kerne
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: New => Incomplete
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Title:
I always get a black screen af
It's not a kernel bug, but in the mesa (OpenGL) package.
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Title:
[ilk mesa] *ERROR* GPU hanging too fast, declaring wedg
(The issue is likely to be a hotplug interrupt storm, you can try 3.10
to see if that mitigates the problem.)
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Title:
[G
That sounds more like a firmware issue, I would suggest you look for a
BIOS update first.
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Title:
[GM45] Freeze: Not wor
The i915_error_state after the hang and before a reboot.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: New => Incomplete
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Note that this is a modesetting bug (kernel). Before running apport-
collect 1193991, run apt-get install xdiagnose.
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Titl
Note that with IVB and MSAA I see lots of corruption with large swaths
of memory being overwritten with pixel values (lots of 0x
especially). That would include the possibility of overwritting context
memory. Isolating MSAA in mesa would be tricky... perhaps a hack to
disable?
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*** Bug 93876 has been marked as a duplicate of this bug. ***
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Title:
[snb] GPU lockup IPEHR: 0x0b160001 IPEHR: 0x0b140
*** Bug 93824 has been marked as a duplicate of this bug. ***
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Title:
[snb] GPU lockup IPEHR: 0x0b160001 IPEHR: 0x0b140
*** Bug 93824 has been marked as a duplicate of this bug. ***
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Title:
[regression] 3.5.0-26-generic and 3.2.0-39-generic GPU hangs on
San
*** Bug 93876 has been marked as a duplicate of this bug. ***
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Title:
[regression] 3.5.0-26-generic and 3.2.0-39-generic GPU hangs on
San
*** Bug 94057 has been marked as a duplicate of this bug. ***
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Title:
[snb] GPU lockup IPEHR: 0x0b160001 IPEHR: 0x0b140
*** Bug 94057 has been marked as a duplicate of this bug. ***
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Title:
[regression] 3.5.0-26-generic and 3.2.0-39-generic GPU hangs on
San
*** Bug 95238 has been marked as a duplicate of this bug. ***
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Title:
[snb] GPU lockup IPEHR: 0x0b160001 IPEHR: 0x0b140
*** Bug 95238 has been marked as a duplicate of this bug. ***
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Title:
[regression] 3.5.0-26-generic and 3.2.0-39-generic GPU hangs on
San
So the first step would to be to check we haven't caught this bug
already - look in ppa:xorg-edgers and ppa:mainline drm-intel-nightly for
the latest drivers.
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htt
Anybody know how to get fixes back into raring?
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Fix Committed => Fix Released
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** Summary changed:
- Xorg crashed with intel_dri backtrace whil attending a google hangout
+ [req kernel 3.10] Xorg crashed with intel_dri backtrace whil attending a
google hangout
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The driver is doing exactly as it is told. The default behaviour of
fbcon and X is to create a "mirrored" fb that is the same on all
outputs. The display manager then sets whatever mode it wants upon
loading. There is no logs here from the failure of the display manager,
and since subsequent attemp
You could at least try testing the fixes...
commit 9b52c852aaf42dde3a7f29c065e4d5230eac7a64
Author: Chris Wilson
Date: Thu Jun 6 16:40:01 2013 +0100
sna/dri: Handle fast double flips across mode changes
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Confirmed =>
Note that other HP machines are being blacklisted in acpi/video.c, e.g.
commit 780a6ec640a3fed671fc2c40e4dd30c03eca3ac3
Author: Ash Willis
Date: Wed May 29 01:27:59 2013 +
ACPI / video: ignore BIOS initial backlight value for HP Pavilion g6
This patch addresses kernel bug 5666
** Summary changed:
- Ubuntu 13.04 Beta 2- Intel HD Graphics 3000 - No screen
+ [snb] More HP acpi_backlight woes
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Title:
One thing you can try is linux v3.10 as that contains mitigation code
for hotplug interrupt storms.
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Title:
[gm45] Hard
Sorry, no insight yet. So keep trying kernels and keep looking out for
strange errrors.
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Title:
[ivb] System freeze afte
The ppa:mainline drm-intel-nightly kernel is a good way to test - you
can easily remove it afterwards and it will otherwise not interfere with
your system. (Ideally!)
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kernel commit 22fd5ca947b58901927d100d2b1aa0f1672b3435
Author: Chris Wilson
Date: Fri Jun 28 16:54:08 2013 +0100
drm/i915: Only clear write-domains after a successful wait-seqno
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Triaged => Fix Committed
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commit 22fd5ca947b58901927d100d2b1aa0f1672b3435
Author: Chris Wilson
Date: Fri Jun 28 16:54:08 2013 +0100
drm/i915: Only clear write-domains after a successful wait-seqno
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Triaged => Fix Committed
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commit 22fd5ca947b58901927d100d2b1aa0f1672b3435
Author: Chris Wilson
Date: Fri Jun 28 16:54:08 2013 +0100
drm/i915: Only clear write-domains after a successful wait-seqno
In the introduction of the non-blocking wait, I cut'n'pasted the wait
completion code from nor
Thanks for the testing result, there is a known deadlock in the upstream
kernel that I guess I should be fixing... As the default is for fbc=0 on
released kernels, enabling it is at your own risk - ergo not a bug in
Ubuntu per se.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Con
You were too quick and I too slow. Completely forgot about this bug, can
you please attach the paste to this bug report so that it doesn't get
lost?
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And just to check, you have an xserver-xorg-video-intel from today?
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Title:
visual glitch in Evolution's importance butt
That has never been policy.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: New => Invalid
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Title:
[reg
That package was slightly older than one patch I had in mind. I can be
optimistic!
Do the errors continue to take the same form?
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It's likely to be a different bug. Best to file separately with full
debug info and let me sort out whether it is an already known/fixed bug.
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Let's start off with the basics: Xorg.0.log, dmesg and a system profile
of what is happening when it is slow. And narrow down the complaint, for
instance are the measurements you made in parallel with other system
activity or after you shut them down?
Also please do try running these tests with a
*** This bug is a duplicate of bug 1188123 ***
https://bugs.launchpad.net/bugs/1188123
The logs did not capture the error, do you mind tracking down one with a
stack trace? Search /var/log/Xorg*
Can you give the xrandr commands you use, for it looks like you have
just resized the panning area
That rules out the obvious causes such as GPU hangs. Is that
reproduction script as simple as you can make it? i.e. does just loading
firefox and browsing a single website enough to bring the system to its
knees, or just totem etc?
Can you please 'apt-get install linux-tools xserver-xorg-core-dbg
I just noticed... X is in the 'D' process state That should never
happen! Basically the only times where we do anything uninterruptible is
during a modeset.
Maybe a drm.debug=6 dmesg during the slow time will help?
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Can you please attach /var/log/Xorg.0.log so that I a few system
details?
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Title:
ubuntu 12.10 64-bit freezes frequently
A GPU lockup on 945gm leading to a machine freeze is extremely rare, the
last I can remember is several years ago. I'd try memtest first, and
then trying a few different kernels to see if any give any clue as to
what the problem is.
** Summary changed:
- ubuntu 12.10 64-bit freezes frequently
+ [
*** This bug is a duplicate of bug 1041790 ***
https://bugs.launchpad.net/bugs/1041790
** This bug has been marked a duplicate of bug 1041790
[snb] GPU lockup IPEHR: 0x0b160001 IPEHR: 0x0b140001, workaround
i915.semaphores=0
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\o/ That is a hotplug IRQ storm. It's good news that we now know the
problem! If you try drm-intel-nightly (ppa:mainline) that kernel has
some hotplug mitigation code to prevent such storms.
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(I couldn't remember if that was in 3.10 or 3.11...)
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Title:
[gm45] Environment lagging randomly
To manage notification
So the update-apt-index process is running? (just a quick glance at a
normal top) Can you wait until the system is idle (may be upto 5 minutes
on some systems) and remeasure?
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That error message is not associated with the rest of the symptoms,
which are from a different fatal GPU hang.
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Title:
[
Sergio, I believe the corruption you are seeing in the presentation is
from the coherency bug. My apologies for confusing that with the general
gen4 rendering issues.
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Hmm, perf is taking up quite a bit of time to unwind stuff, more that I would
expect. But other than libc (likely memcpy/memmove, perhaps apt-get install
libc6-dbg and check), the only danger sign is the presence of acpi_os_write.
Can you also look at sudo perf top --sort=dso (and install the db
commit 22fd5ca947b58901927d100d2b1aa0f1672b3435
Author: Chris Wilson
Date: Fri Jun 28 16:54:08 2013 +0100
drm/i915: Only clear write-domains after a successful wait-seqno
In the introduction of the non-blocking wait, I cut'n'pasted the wait
completion code from nor
Hmm, perf top -U ?
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Title:
General lag under desktop environments
To manage notifications about this bug go to:
https:
The NMI error is a bug in that kernel's perf (iirc). I still haven't
seen anything to suggest a reason for any slowdown. Must be as
infuriating for you as it is for me.
Can you please watch top and sudo perf top whilst the system is idle and
lightly loaded to learn the expected behaviour, then ins
So far I think we've established that it is not a rouge CPU hog that is
blocking the system. Having to restart the system rather the session,
also lends credence to that it is not a simple userspace or even gfx
driver issue.
On the theory that the GPU goes nuts, download and build
http://cgit.fre
Try with an older kernel, say v3.5. If it turns out to be a difference
in kernels, try to find the last known good (and the first known bad)
and begin a bisect. The results will be most illuminating.
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To clarify, you experience the issue with kernels as far back as 3.4.50?
If you can install a 3.2 that would be good to check.
Indeed that it does not present itself in any logs or as an obvious
effect, is very worrying. If nothing in the kernel/userspace claims
responsibility, then we have to loo
Not so "bad", just less than ideal. Though since that hw doesn't support
runtime suspend, there isn't anything that can be done. It is certainly
not the cause of the spontaneous slowdown. (At least that what's I
think, a mere driver author!)
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Workaround that I put in for raring was presumed to be sufficient. Since
then we have identified and fixed the root cause, but that fix has yet
to even land in saucy.
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Indeed, I'm just waiting for the US to wake up after its long weekend
and see if there were any more issues with the new features in 2.21.11.
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https://bugs.launch
Yes, saucy has the requisite kernel. Thanks!
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: New => Fix Released
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I have pushed a revised workaround to the best of my understanding to
commit 368c909b29758f996dbbdbec4d471df23f60bc04
Author: Chris Wilson
Date: Sat Jul 6 22:27:44 2013 +0100
sna/gen4: Restore the flush-every-vertex w/a
This is an abhorrent workaround for some internal GPU
Removed an older hack and had to reduce the max further. Bah, humbugs.
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https://bugs.launchpad.net/bugs/1098334
Title:
[gen4 sna] Font corruption in Chromium ta
(In reply to comment #93)
> The bad part is - while before I've been getting 3.7Mchar/s in x11perf
> -aa10text - now it's like 1.3Mchar/s so significantly slower.
That's the sacrifice, we have to stop sending commands to the GPU and
wait for it complete those in flight (quite frequently). Or else
(In reply to comment #97)
> (In reply to comment #96)
> > (In reply to comment #93)
> > > The bad part is - while before I've been getting 3.7Mchar/s in x11perf
> > > -aa10text - now it's like 1.3Mchar/s so significantly slower.
> >
> > That's the sacrifice, we have to stop sending commands to th
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