knarf, thanks for developing the patch - I would recommend you also send
this patch upstream, as they may be able to spot some ways to improve
it, and if it's included upstream we won't have to worry about
maintaining it uniquely in ubuntu going forward.
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netbook-launcher crashed with SIGSEGV
I'll send a message to the mesa-dev list to see what the reaction is.
While the patch makes it possible to run software which depends on RGBA
visuals it is clear that it does not always work as it should, eg. text
in clutter shows up as black or white rectangles. This might be caused
by a faulty
This bug was fixed in the package mesa - 7.7.1-1ubuntu2
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mesa (7.7.1-1ubuntu2) lucid; urgency=low
* Add 103_savage-expose_fbmodes_with_nonzero_alpha.patch: Expose
fbmodes with non-zero alpha depth. Fixes issue where clutter apps
crash when using the savage driver.
** Changed in: mesa (Ubuntu)
Status: Confirmed = Triaged
** Changed in: mesa (Ubuntu)
Importance: Undecided = Medium
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netbook-launcher crashed with SIGSEGV in glGetString()
https://bugs.launchpad.net/bugs/467474
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This bug was fixed in the package netbook-launcher - 1:2.1.16-0ubuntu1
---
netbook-launcher (1:2.1.16-0ubuntu1) lucid; urgency=low
* New upstream release:
- Prevent crash in keyboard navigation into System category. (Jan Arne
Petersen) (LP: #465548)
- Works around a
** Branch linked: lp:ubuntu/netbook-launcher
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netbook-launcher crashed with SIGSEGV in glGetString()
https://bugs.launchpad.net/bugs/467474
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Marking as invalid the netbook-launcher task as it impacts the mesa
driver. RAOF, Bryce? can you have a look at it?
** Changed in: netbook-launcher (Ubuntu)
Status: Triaged = Invalid
** Changed in: netbook-remix-launcher
Status: New = Invalid
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netbook-launcher crashed with
** Tags added: karmic
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netbook-launcher crashed with SIGSEGV in glGetString()
https://bugs.launchpad.net/bugs/467474
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I have patched the savage driver so it exposes modes with non-zero alpha
depth. The patch only changes the modes which the driver exposes, I have
not verified that all exposed modes are actually functional. Using the
patched driver clutter applications are functional (within the
constraints of the
I noticed that the original submitter runs the framebuffer at 16bpp
instead of 24. The patch does NOT add RGBA modes for 16 bit visuals so
to use clutter he'll have to switch to 24bpp.
--
netbook-launcher crashed with SIGSEGV in glGetString()
https://bugs.launchpad.net/bugs/467474
You received
** Tags added: patch
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netbook-launcher crashed with SIGSEGV in glGetString()
https://bugs.launchpad.net/bugs/467474
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OK, I have made some progress with Clutter and the savage. There are two
things at play here:
1) clutter always requests non-zero alpha depth when looking for
visuals. The savage driver does not support non-zero alpha depth so it
does not return any visuals. Clutter uses RGB visuals by default
As it stands now all clutter apps crash when using the savage driver (on
a T23). This is what the clutter test apps do:
(gdb) c
Continuing.
ClutterX11-Message: [BACKEND] ./clutter-backend-x11.c:143: XOpenDisplay on
':0.0'
ClutterX11-Message: [BACKEND] ./clutter-backend-x11.c:170: Getting the X
** Tags added: crash
** Changed in: mesa (Ubuntu)
Status: New = Confirmed
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netbook-launcher crashed with SIGSEGV in glGetString()
https://bugs.launchpad.net/bugs/467474
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** Also affects: mesa (Ubuntu)
Importance: Undecided
Status: New
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netbook-launcher crashed with SIGSEGV in glGetString()
https://bugs.launchpad.net/bugs/467474
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So, there are two bugs here - an underlying bug in the 3D drivers which
seem to be crashing in glGetString while we have a valid GL context -
and that netbook-launcher is not catching the bad state from Clutter -
clutter is failing to create valid stages actors, but netbook-launcher
is proceeding
** Branch linked: lp:~raof/netbook-remix-launcher/fix-bug-467474
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netbook-launcher crashed with SIGSEGV in glGetString()
https://bugs.launchpad.net/bugs/467474
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Same on ibm t23 with the 9.10 and also with the lucid-netbook live-cd
(from 11.02.10).
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netbook-launcher crashed with SIGSEGV in glGetString()
https://bugs.launchpad.net/bugs/467474
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