[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-03-10 Thread Tim Hamilton
I finally got around to testing  xserver-xorg-video-intel -
2:2.21.3+git20130308.78c75612-0ubuntu0sarvatt~quantal that was published
in 08/03/10 and associated updates.

Happy to say that these seem to have pretty much resolved all issues
that I've raised in this bug.

3d acceleration is back, flash videos play and colour depth is fine.

Thanks very much for your work on this Chris.

Now to fix the kernel oops that is described here
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
intel/+bug/1020393 and here.

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-03-10 Thread Tim Hamilton
Oh, here: https://bugs.freedesktop.org/show_bug.cgi?id=57495

** Bug watch added: freedesktop.org Bugzilla #57495
   https://bugs.freedesktop.org/show_bug.cgi?id=57495

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-03-03 Thread Chris Wilson
This should handle the kernel regression more gracefully:

commit ef5edbf61686388126e62ce360a66dd8652b2493
Author: Chris Wilson ch...@chris-wilson.co.uk
Date:   Sun Mar 3 09:29:53 2013 +

sna: Probe for kernel support of framebuffer formats

References: 
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1135403

When that pops up in xorg-edgers can you please test?

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-03-03 Thread Tim Hamilton
Thanks Chris, I'll keep an eye out for it and test when it comes down
the pipe.

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-03-03 Thread Chris Wilson
Oh well, it exposes critical bugs in mesa, so reverted. Yet again.

** Changed in: xserver-xorg-video-intel (Ubuntu)
   Status: Incomplete = Fix Released

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-03-03 Thread Tim Hamilton
That's a shame, I've noted a couple of extra placed where regressions
are making themselves known, though I'm not entirely sure if they're
related 100% to this bug.

1. Flash video in Firefox is broken and does not render correctly. This is not 
the case in Google Chrome.
2. Transparent backgrounds render incorrectly.


** Attachment added: Screenshot from 2013-03-03 23:00:52.png
   
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1135403/+attachment/3554897/+files/Screenshot%20from%202013-03-03%2023%3A00%3A52.png

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-03-03 Thread Chris Wilson
Yes,  those are symptomatic of the renders not being pixelformat-aware
and just getting it wrong.

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-03-02 Thread PseudoMorph
Chris, Thanks for looking into this and also for your continued updates.

I pulled the changes down this afternoon and although they seem to have
corrected the discolouration issue with my external monitor they have
also introduced new regressions that have led to a loss of 3d rendering
altogether meaning I am no longer able to use any of the desktops that
require 3d acceleration (Unity, Cinnamon, Gnome-Shell).

I'm happy to provide logs  do any extra testing req to help get to the
bottom of the issue, you'll just need to point me in the right
direction.

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-03-02 Thread Chris Wilson
Sounds like whatever was causing your setup to run in clone mode rather
than as an extended desktop was also fixed (that should have been an
issue caused by something other than -intel). However, libGL does not
support hw acceleration to surfaces larger than 2048 on 945gm and so all
the GL compositors fail miserably if you exceed that pixel count in any
dimension. -intel handles it by using different functions on the GPU
that can cope with the larger surfaces, or by splitting the operations
into small enough chunks for the 3D pipeline - so that it just works.

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-03-02 Thread PseudoMorph
Sorry, I should have added that lack of 3d acceleration is a problem no
matter if I'm using my external monitor (which I usually use as single
display with the laptop monitor off  not in extended or clone mode) or
my laptop's built in display.

This means I've not been attempting to push 3d graphics to any area
larger than the highest native resolution the external monitor supports,
and in many cases the much smaller 800x600).

Further symptoms include a compete loss of graphics as soon as gnome
loads when booting a 3.5.0 (Ubuntu) or 3.70 (edgers) kernel. The same is
not a problem when booting a 3.8.0 custom compiled kernel.

Is this likely to a but in something other that -intel  should I be
opening a new bug on these new issues with 3d acceleration?

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-03-02 Thread Chris Wilson
My first thought is that it is still trying to use extended modes - can
you attach your Xorg.0.log from a failed boot?

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-03-02 Thread PseudoMorph
Sure thing, see attached.

** Attachment added: Xorg.0.log
   
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1135403/+attachment/3553846/+files/Xorg.0.log

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-03-02 Thread Chris Wilson
This is getting weirder:

[16.025] (II) intel(0): switch to mode 1280x800 on crtc 4 (pipe 1)
[16.025] (EE) intel(0): get_fb: failed to add fb: 1280x800 depth=15, 
bpp=16, pitch=4096: 22
[16.025] (WW) intel(0): failed to restore desired modes on VT switch
[16.025] (II) intel(0): switch to mode 1280x800 on crtc 4 (pipe 1)
[16.025] (EE) intel(0): get_fb: failed to add fb: 1280x800 depth=15, 
bpp=16, pitch=4096: 22

Can you append drm.debug=6 to your kernel command line (grub) and then
attach the dmesg from another failed boot.

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-03-02 Thread PseudoMorph
Done

** Attachment added: dmesg
   
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1135403/+attachment/3553875/+files/dmesg

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-03-02 Thread Chris Wilson
I don't see the telltale failure message in that dmesg. Do you mind
recapturing it?

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-03-02 Thread Tim Hamilton
My mistake, turned the option on for the wrong kernel entry. This should
be better.

** Attachment added: dmesg
   
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1135403/+attachment/3554527/+files/dmesg

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-03-01 Thread Chris Wilson
There will be an update in xorg-edgers in the next day or so that should
fix up the discoloration - please let me know your opinion on the
reduced depth rendering.

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-03-01 Thread Robert Hooker
Sorry about the delay, its up in edgers now but will need about 4 hours
to build because of the backlog.

** Changed in: xserver-xorg-video-intel (Ubuntu)
   Status: New = Incomplete

** Changed in: xorg (Ubuntu)
   Status: New = Invalid

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-02-28 Thread bugbot
** Tags added: edgers

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-02-28 Thread Thaddäus Tintenfisch
** Also affects: xserver-xorg-video-intel (Ubuntu)
   Importance: Undecided
   Status: New

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[Bug 1135403] Re: xserver-xorg-video-intel regression (Intel 945GM) [xorg-edgers]

2013-02-28 Thread Chris Wilson
 Grey tones now all render in pink, see attached screenshot.

That would appear to be a result of me playing with reducing the
DefaultDepth to 16 on these bandwidth constrained devices. Hmm, if used
a default depth of 15 that should prevent that discoloration. (It's been
a useful exercise but I think there are too many bugs in the upper
layers of the rendering stack for us to make the switch by default.)

Upon login display no longer remains full screen. Display appears as
static image in centre of screen rather than as full screen with working
login animation.

This maybe unexpected. You have both a LVDS and DVI connected. So it is
picking a mode common to both (1280x800) and cloning the desktop across.
That will result in only the centre portion of the DVI output being used
(if the monitor itself does not autoscale). I'm guessing this a bug in
the display manager since monitors.xml says not to clone and to use
native modes...

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