I have filed the bug at https://bugs.freedesktop.org/show_bug.cgi?id=70322,
because I think it related to mesa.
Still, also affects the ubuntu upgrade to 13.4.
I downgraded back to 12.10 in order to keep openGl working.
** Bug watch added: freedesktop.org Bugzilla #70322
https://bugs.freedeskt
** Attachment removed: "see the "!!!" comments in the code."
https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1234565/+attachment/3856785/+files/fragment_shader.c
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** Package changed: xorg (Ubuntu) => mesa (Ubuntu)
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https://bugs.launchpad.net/bugs/1234565
Title:
serious opengl bug in 13.04
Status in “mesa” package in Ubuntu:
New
B
** Attachment added: "glxinfo"
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1234565/+attachment/3856833/+files/glxinfo.txt
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https://bugs.launchpad.net/bugs/1234565
Public bug reported:
Tested on two notebooks.
Bug appears only in the 13.04 version. 12.10 is OK.
Dubblechecked by booting a 12.10 version on USB stick (on the 13.04 notebooks).
Problem:
OpenGl shading language (GLSL) uniform variables seem to stay undefined, or
lose their value somewhere.
Tested
** Summary changed:
- upgrade to 13.4: wrong/strange behavior opengel es vertex shader
+ upgrade to 13.4: wrong/strange behavior opengl es vertex shader
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** Summary changed:
- upgrade to 13.6: wrong/strange behavior opengel es vertex shader
+ upgrade to 13.4: wrong/strange behavior opengel es vertex shader
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https://bugs.launch
Just tested an existing desktop Qt opengl ES application, with same kind of
code (if ...).
Also same wrong behaviour.
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https://bugs.launchpad.net/bugs/1176818
Title:
upgra
Public bug reported:
Graphics: Intel® 965GM
I suspect (I am not a mesa etc. specialist) sth wrong in the mesa lib, because
opengl ES isn't working correctly any more.
I had a WebGL app running nicely in FireFox and Chromium (Ubuntu 12.10).
I upgraded from 12.10(64bits) to 13.4 (64bits).
Now it d
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