I had same Problem with about any linux steam game i own, on different systems
with intel graphics.
And in Unity and KDE.
With newest updates I now, can't reproduce it anymore.
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I can reproduce this with minecraft, seems to be the case indeed.
The same binary on saucy on a snb:
visual 0/51: 24 depth, RGB: ff ff ff alphaMask = 0
visual 1/4d: 32 depth, RGB: ff ff ff alphaMask = ff
visual 2/51: 24 depth, RGB: ff ff ff alphaMask = 0
visual 3/51: 24 depth, RGB: ff ff ff
Not setting GLX_DEPTH_SIZE appears to fix the order.
BTW your test program garbles the id's, they're not identical. ;-)
saucy:
visual 0/47 fbconfig 8b
visual 1/82 fbconfig 8f
visual 2/ac fbconfig 94
visual 3/48 fbconfig 9d
visual 4/b0 fbconfig a1
visual 5/b3 fbconfig a6
visual 6/aa fbconfig 90
So all things being equal, 8f and 8b differ only in depth, and since you
set GLX_DEPTH_SIZE..
GLX_DEPTH_SIZE: Must be followed by a nonnegative minimum size
specification. If this value is zero, frame buffer configurations with
no depth buffer are preferred. Otherwise, the largest available depth
I'm confused... so, you're essentially saying it's the fault of the
application, choosing the wrong visual? So what exactly changed and why
did it change and how is this better than before? I don't think the
visual with a compositable alpha channel should be chosen as default by
accident. (?) The
No, just that the test as you've written shows the correct behavior. The
old behavior didn't care about depth, and was wrong.
You would probably need to fix lwjgl instead to select a non-alpha
channel, or have lwjgl handle the alpha bits correctly.
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Never mind on Comment #32, it's still a problem for me.
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https://bugs.launchpad.net/bugs/1277905
Title:
Game windows (minecraft, titan attacks, maybe others) on Intel are
Same Issue here, 14.04 amd64 with updated everything. I'm running a
Lenovo Thinkpad T420s, Intel i5-2520m processor, screen resolution
1600x900, HD3000 graphics, kernel 3.13.0-23-generic.
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I am currently not running Ubuntu but I am experiencing this issue exact
issue in ArchLinux. Intel GFX card and also running Gnome with latest
updates.
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Minecraft is now working for me, on a machine last upgraded Saturday.
ii xserver-xorg 1:7.7+1ubuntu8
amd64X.Org X server
ii xserver-xorg-video-intel 2:2.99.910-0ubuntu1
This should have been fixed by the commits jana-h mentioned, is this
still an issue?
** Package changed: xorg (Ubuntu) = xserver-xorg-video-intel (Ubuntu)
** Package changed: xserver-xorg-video-intel (Ubuntu) = mesa (Ubuntu)
** Changed in: mesa (Ubuntu)
Status: Confirmed = Incomplete
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Are those in trusty? Because on my up to date and clean booted trusty
laptop I still see the issue.
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Title:
Game windows (minecraft, titan
** Package changed: xserver-xorg-video-intel (Ubuntu) = xorg (Ubuntu)
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Title:
Game windows (minecraft, titan attacks, maybe others) on
I have the same bug running two machines with trusty ... a ASUS F55A-
091D and Lenovo Edge e420s.
** Attachment added: Bildschirmfoto vom 2014-03-12 20:26:01.png
I did some bit of uneducated debugging.
It seems there is something going on with the GL/GLX and alpha bits.
The LWJGL code is creating a GLX window for its content.
I noticed that the screen displaying the logo on startup was entirely
translucent, without the 256x256 block in the lower left
Note that you can find the GL setup code here:
https://github.com/LWJGL/lwjgl/blob/master/src/native/linux/opengl/org_lwjgl_opengl_Display.c
somewhere around Java_org_lwjgl_opengl_LinuxDisplay_nCreateWindow
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I have a possible culprit.
The composite extension requires premultiplied alpha data when
compositing images with alpha. So (0, 0, 0, 0) means fully transparent
and (0, 0, 0, 1) means solid black. This is consistent with what I am
seeing with the login window.
I found some example code with
This bug isn't limited to Minecraft or LWJGL. Minetest (not Java) and
many other games also exhibit the same behaviour.
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Ok, so this proves my point. The unwanted change somewhere in the X/GL
stack is that the visual with the composite alpha channels is now
accidentally chosen by default whereas the applications expect the
alpha channel to be ignored.
I just decompiled Minecraft and hacked the calls to glClearColor
Googling around I found those recent two patches:
http://patchwork.freedesktop.org/patch/20458/
http://patchwork.freedesktop.org/patch/20464/
[Mesa-dev] glx: Fix the default values for GLXFBConfig attributes
[Mesa-dev] glx: Fix the GLXFBConfig attrib sort priorities
Mightbe related...
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I'm not a Ubuntu user myself, but seeing the exact same issue on my
Gentoo (unstable) system. I've seen it before the last couple of months,
but only occasionally, typically after a long-running X session and it
usually went away with an X server restart. For a bit over a week now
the problem has
PS: I tried the latest git version of xf86-video-intel (that includes
that fix Avoid promoting region-to-whole migration and discarding
damage by Chris) - same issue.
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It's estimated to have a moderate impact on a large portion of Ubuntu
users.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Importance: Undecided = High
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Can comfirm this issue and that the image from post #12 is identical to
the issue I see in minecraft as well.
Intel® Core™ i5-2430M CPU
Ubuntu 14.04 fully updated as of this morning
I have seen this issue for ~1 week.
Unity7 DE
No ppa's that affect video card drivers, or kernels. A pretty stock
FWIW, I am running xubuntu 14.04 and it does the same thing. I can get
it to work when i turn off compositing.
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Title:
It is hard to tell - the regions in question look like OpenGL content,
but if this only started very recently, you should test with
xf86-video-intel commit 27ac9f574f65cbd535751c925e9b2e2d7c8a6b3a
Author: Chris Wilson ch...@chris-wilson.co.uk
Date: Thu Feb 27 08:33:52 2014 +
sna: Avoid
Sorry I haven't tried the various options yet Chris. I generally don't
have an xorg.conf (2014 yay!) :)
Is there some skeleton xorg.conf I can use which won't introduce any
additional issues which might cloud my testing?
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You can just write snippets, such as:
Section Device
Identifier Device0
Option SwapbuffersWait false
EndSection
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Confirmed on Toshiba Satellite L830, Intel GFX @1366x768 native
resolution.
Was OK yesterday, updated this afternoon, rebooted, now transparent
Minecraft.
Happens in Kerbal Space Program too.
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Oh, just to be clear, I'm using Ubuntu Gnome.
So that might rule some things out.
KSP screenshot attached, showing groovy pink desktop image under
fullscreen KSP window. Minecraft behaves the same way.
** Attachment added: Screenshot from 2014-02-26 22:45:39.png
I wonder if Alan's issue is related to the interesting effect of running
at 1360 vs 1366 we see on his machine
(https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
intel/+bug/1283568). Ryan can you also please attach your Xorg.0.log
when this occurs to you? Is it immediate? Does it show
It happens when I use an external 1080p display and the internal panel
is off too..
** Attachment added: Screenshot from 2014-02-24 12:34:52.png
Chris, I can reproduce it consistently. The effect is immediate, and
shows up in screenshots. I haven't tried an external display, but
according to Xorg.0.log, my Thinkpad is running at native 1366x768.
Minecraft is the only application I've seen it on in trusty so far, but
admittedly I don't
** Attachment added: Screenshot from 2014-02-24 09:37:55.png
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1277905/+attachment/3994697/+files/Screenshot%20from%202014-02-24%2009%3A37%3A55.png
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Confirmed on a up to date and rebooted trusty laptop as of 2014-02-23,
Thinkpad X220 with Intel graphics.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Incomplete = Confirmed
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Well this is odd. It's happened again today.
I played Minecraft at ~18:45 and now it's ~22:30 and it's broken. No
reboot inbetween, however I logged out and back in inbetween at ~19:15.
I did some updates earlier (lunch time)..
http://paste.ubuntu.com/6922587/ which includes some xorg packages.
Any ideas what changed? I guess a library update didn't take effect
until the reboot, or another enviromnental issue (perhaps something like
an update causing a drop back to indirect GLX).
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Confirmed = Incomplete
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That's possible.
Rebooted on Friday in US, flew home, slept.
alan@deep-thought:~$ last | grep reboot
reboot system boot 3.13.0-8-generic Mon Feb 10 00:58 - 10:26 (09:28)
reboot system boot 3.13.0-7-generic Fri Feb 7 13:45 - 10:26 (2+20:41)
Looks like I did some updates on
Updated and rebooted and all seems okay now.
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Title:
Game windows (minecraft, titan attacks, maybe others) on Intel are
** Attachment added: Screenshot from 2014-02-08 11:24:51.png
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1277905/+attachment/3974030/+files/Screenshot%20from%202014-02-08%2011%3A24%3A51.png
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: New = Confirmed
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