[Desktop-packages] [Bug 1234565] Re: serious opengl bug in 13.04
** Package changed: xorg (Ubuntu) = mesa (Ubuntu) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1234565 Title: serious opengl bug in 13.04 Status in “mesa” package in Ubuntu: New Bug description: 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 with a WebGl app as well as a C++ (Qt) application. This bug is also reported a driver issue. If it is related to this driver issue, why is the (old) buggy driver re-installed with 13.04? thanks. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: xorg 1:7.7+1ubuntu4 ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8 Uname: Linux 3.8.0-31-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.9.2-0ubuntu8.3 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true Date: Thu Oct 3 10:02:20 2013 DistUpgraded: 2013-09-19 15:12:56,016 DEBUG enabling apt cron job DistroCodename: raring DistroVariant: ubuntu DkmsStatus: virtualbox, 4.2.10, 3.8.0-30-generic, x86_64: installed ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:058b] InstallationDate: Installed on 2013-08-21 (42 days ago) InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5) MachineType: Dell Inc. Dell System XPS L322X MarkForUpload: True ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-31-generic root=/dev/mapper/ubuntu-root ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to raring on 2013-09-19 (13 days ago) dmi.bios.date: 05/15/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A09 dmi.board.name: 0PJHXN dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA09:bd05/15/2013:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn0PJHXN:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Dell System XPS L322X dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.9~daily13.06.19~13.04-0ubuntu1 version.ia32-libs: ia32-libs 20090808ubuntu36 version.libdrm2: libdrm2 2.4.43-0ubuntu1.1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.4-0ubuntu0.1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.4-0ubuntu0.1 version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu6 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.6-0ubuntu4.1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.7-0ubuntu1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1234565/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1234565] Re: serious opengl bug in 13.04
** Attachment removed: see the !!! comments in the code. https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1234565/+attachment/3856785/+files/fragment_shader.c -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1234565 Title: serious opengl bug in 13.04 Status in “mesa” package in Ubuntu: New Bug description: 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 with a WebGl app as well as a C++ (Qt) application. This bug is also reported a driver issue. If it is related to this driver issue, why is the (old) buggy driver re-installed with 13.04? thanks. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: xorg 1:7.7+1ubuntu4 ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8 Uname: Linux 3.8.0-31-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.9.2-0ubuntu8.3 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true Date: Thu Oct 3 10:02:20 2013 DistUpgraded: 2013-09-19 15:12:56,016 DEBUG enabling apt cron job DistroCodename: raring DistroVariant: ubuntu DkmsStatus: virtualbox, 4.2.10, 3.8.0-30-generic, x86_64: installed ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:058b] InstallationDate: Installed on 2013-08-21 (42 days ago) InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5) MachineType: Dell Inc. Dell System XPS L322X MarkForUpload: True ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-31-generic root=/dev/mapper/ubuntu-root ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to raring on 2013-09-19 (13 days ago) dmi.bios.date: 05/15/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A09 dmi.board.name: 0PJHXN dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA09:bd05/15/2013:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn0PJHXN:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Dell System XPS L322X dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.9~daily13.06.19~13.04-0ubuntu1 version.ia32-libs: ia32-libs 20090808ubuntu36 version.libdrm2: libdrm2 2.4.43-0ubuntu1.1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.4-0ubuntu0.1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.4-0ubuntu0.1 version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu6 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.6-0ubuntu4.1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.7-0ubuntu1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1234565/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1234565] [NEW] serious opengl bug in 13.04
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 with a WebGl app as well as a C++ (Qt) application. This bug is also reported a driver issue. If it is related to this driver issue, why is the (old) buggy driver re-installed with 13.04? thanks. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: xorg 1:7.7+1ubuntu4 ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8 Uname: Linux 3.8.0-31-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.9.2-0ubuntu8.3 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true Date: Thu Oct 3 10:02:20 2013 DistUpgraded: 2013-09-19 15:12:56,016 DEBUG enabling apt cron job DistroCodename: raring DistroVariant: ubuntu DkmsStatus: virtualbox, 4.2.10, 3.8.0-30-generic, x86_64: installed ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:058b] InstallationDate: Installed on 2013-08-21 (42 days ago) InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5) MachineType: Dell Inc. Dell System XPS L322X MarkForUpload: True ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-31-generic root=/dev/mapper/ubuntu-root ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to raring on 2013-09-19 (13 days ago) dmi.bios.date: 05/15/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A09 dmi.board.name: 0PJHXN dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA09:bd05/15/2013:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn0PJHXN:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Dell System XPS L322X dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.9~daily13.06.19~13.04-0ubuntu1 version.ia32-libs: ia32-libs 20090808ubuntu36 version.libdrm2: libdrm2 2.4.43-0ubuntu1.1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.4-0ubuntu0.1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.4-0ubuntu0.1 version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu6 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.6-0ubuntu4.1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.7-0ubuntu1 ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug compiz-0.9 glsl opengl raring ubuntu ** Attachment added: see the !!! comments in the code. https://bugs.launchpad.net/bugs/1234565/+attachment/3856785/+files/fragment_shader.c -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1234565 Title: serious opengl bug in 13.04 Status in “xorg” package in Ubuntu: New Bug description: 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 with a WebGl app as well as a C++ (Qt) application. This bug is also reported a driver issue. If it is related to this driver issue, why is the (old) buggy driver re-installed with 13.04? thanks. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: xorg 1:7.7+1ubuntu4 ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8 Uname: Linux 3.8.0-31-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.9.2-0ubuntu8.3 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true Date: Thu Oct 3 10:02:20 2013 DistUpgraded: 2013-09-19 15:12:56,016 DEBUG enabling apt cron job DistroCodename: raring DistroVariant: ubuntu DkmsStatus: virtualbox, 4.2.10, 3.8.0-30-generic, x86_64: installed ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:058b] InstallationDate: Installed on 2013-08-21 (42 days ago) InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64
[Desktop-packages] [Bug 1234565] Re: serious opengl bug in 13.04
** Attachment added: glxinfo https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1234565/+attachment/3856833/+files/glxinfo.txt -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1234565 Title: serious opengl bug in 13.04 Status in “xorg” package in Ubuntu: New Bug description: 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 with a WebGl app as well as a C++ (Qt) application. This bug is also reported a driver issue. If it is related to this driver issue, why is the (old) buggy driver re-installed with 13.04? thanks. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: xorg 1:7.7+1ubuntu4 ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8 Uname: Linux 3.8.0-31-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.9.2-0ubuntu8.3 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true Date: Thu Oct 3 10:02:20 2013 DistUpgraded: 2013-09-19 15:12:56,016 DEBUG enabling apt cron job DistroCodename: raring DistroVariant: ubuntu DkmsStatus: virtualbox, 4.2.10, 3.8.0-30-generic, x86_64: installed ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:058b] InstallationDate: Installed on 2013-08-21 (42 days ago) InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5) MachineType: Dell Inc. Dell System XPS L322X MarkForUpload: True ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-31-generic root=/dev/mapper/ubuntu-root ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to raring on 2013-09-19 (13 days ago) dmi.bios.date: 05/15/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A09 dmi.board.name: 0PJHXN dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA09:bd05/15/2013:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn0PJHXN:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Dell System XPS L322X dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.9~daily13.06.19~13.04-0ubuntu1 version.ia32-libs: ia32-libs 20090808ubuntu36 version.libdrm2: libdrm2 2.4.43-0ubuntu1.1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.4-0ubuntu0.1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.4-0ubuntu0.1 version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu6 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.6-0ubuntu4.1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.7-0ubuntu1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1234565/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1176818] [NEW] upgrade to 13.6: wrong/strange behavior opengel es vertex shader
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 does not work correctly any more in FireFox as well as Chromium.
No errors, but serious wrong behavior.
It still works correctly on other machines (ubuntu 12.04/FireFox,
macBook/FireFox, windows/Chromium).
The bug turns up in the following lines of the vertex shader (coming from
javascript/WebGL)
---
uniform mediump vec3 criticalHeights;
attribute mediump vec3 vertex;
...
if(criticalHeights[2] vertex.z )
{varAmbientLight = redAmbientLight; varDiffuseLight = redDiffuseLight;};
}
---
criticalHeights[2] and vertex.z vary between -100 and + a few hundred.
the 'if' statement always returns true, even with extreme values like
-100.0 vertex.z or criticalHeights[2] 100.0
Please find attached output of glxinfo.
Thanks.
** Affects: mesa (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: glx.txt
https://bugs.launchpad.net/bugs/1176818/+attachment/322/+files/glx.txt
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to mesa in Ubuntu.
https://bugs.launchpad.net/bugs/1176818
Title:
upgrade to 13.6: wrong/strange behavior opengel es vertex shader
Status in “mesa” package in Ubuntu:
New
Bug description:
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 does not work correctly any more in FireFox as well as Chromium.
No errors, but serious wrong behavior.
It still works correctly on other machines (ubuntu 12.04/FireFox,
macBook/FireFox, windows/Chromium).
The bug turns up in the following lines of the vertex shader (coming from
javascript/WebGL)
---
uniform mediump vec3 criticalHeights;
attribute mediump vec3 vertex;
...
if(criticalHeights[2] vertex.z )
{varAmbientLight = redAmbientLight; varDiffuseLight = redDiffuseLight;};
}
---
criticalHeights[2] and vertex.z vary between -100 and + a few hundred.
the 'if' statement always returns true, even with extreme values like
-100.0 vertex.z or criticalHeights[2] 100.0
Please find attached output of glxinfo.
Thanks.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1176818/+subscriptions
--
Mailing list: https://launchpad.net/~desktop-packages
Post to : desktop-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~desktop-packages
More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1176818] Re: upgrade to 13.6: wrong/strange behavior opengel es vertex shader
Just tested an existing desktop Qt opengl ES application, with same kind of
code (if ...).
Also same wrong behaviour.
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to mesa in Ubuntu.
https://bugs.launchpad.net/bugs/1176818
Title:
upgrade to 13.6: wrong/strange behavior opengel es vertex shader
Status in “mesa” package in Ubuntu:
New
Bug description:
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 does not work correctly any more in FireFox as well as Chromium.
No errors, but serious wrong behavior.
It still works correctly on other machines (ubuntu 12.04/FireFox,
macBook/FireFox, windows/Chromium).
The bug turns up in the following lines of the vertex shader (coming from
javascript/WebGL)
---
uniform mediump vec3 criticalHeights;
attribute mediump vec3 vertex;
...
if(criticalHeights[2] vertex.z )
{varAmbientLight = redAmbientLight; varDiffuseLight = redDiffuseLight;};
}
---
criticalHeights[2] and vertex.z vary between -100 and + a few hundred.
the 'if' statement always returns true, even with extreme values like
-100.0 vertex.z or criticalHeights[2] 100.0
Please find attached output of glxinfo.
Thanks.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1176818/+subscriptions
--
Mailing list: https://launchpad.net/~desktop-packages
Post to : desktop-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~desktop-packages
More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1176818] Re: upgrade to 13.4: wrong/strange behavior opengel es vertex shader
** Summary changed:
- upgrade to 13.6: wrong/strange behavior opengel es vertex shader
+ upgrade to 13.4: wrong/strange behavior opengel es vertex shader
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to mesa in Ubuntu.
https://bugs.launchpad.net/bugs/1176818
Title:
upgrade to 13.4: wrong/strange behavior opengel es vertex shader
Status in “mesa” package in Ubuntu:
New
Bug description:
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 does not work correctly any more in FireFox as well as Chromium.
No errors, but serious wrong behavior.
It still works correctly on other machines (ubuntu 12.04/FireFox,
macBook/FireFox, windows/Chromium).
The bug turns up in the following lines of the vertex shader (coming from
javascript/WebGL)
---
uniform mediump vec3 criticalHeights;
attribute mediump vec3 vertex;
...
if(criticalHeights[2] vertex.z )
{varAmbientLight = redAmbientLight; varDiffuseLight = redDiffuseLight;};
}
---
criticalHeights[2] and vertex.z vary between -100 and + a few hundred.
the 'if' statement always returns true, even with extreme values like
-100.0 vertex.z or criticalHeights[2] 100.0
Please find attached output of glxinfo.
Thanks.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1176818/+subscriptions
--
Mailing list: https://launchpad.net/~desktop-packages
Post to : desktop-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~desktop-packages
More help : https://help.launchpad.net/ListHelp
[Desktop-packages] [Bug 1176818] Re: upgrade to 13.4: wrong/strange behavior opengl es vertex shader
** Summary changed:
- upgrade to 13.4: wrong/strange behavior opengel es vertex shader
+ upgrade to 13.4: wrong/strange behavior opengl es vertex shader
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to mesa in Ubuntu.
https://bugs.launchpad.net/bugs/1176818
Title:
upgrade to 13.4: wrong/strange behavior opengl es vertex shader
Status in “mesa” package in Ubuntu:
New
Bug description:
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 does not work correctly any more in FireFox as well as Chromium.
No errors, but serious wrong behavior.
It still works correctly on other machines (ubuntu 12.04/FireFox,
macBook/FireFox, windows/Chromium).
The bug turns up in the following lines of the vertex shader (coming from
javascript/WebGL)
---
uniform mediump vec3 criticalHeights;
attribute mediump vec3 vertex;
...
if(criticalHeights[2] vertex.z )
{varAmbientLight = redAmbientLight; varDiffuseLight = redDiffuseLight;};
}
---
criticalHeights[2] and vertex.z vary between -100 and + a few hundred.
the 'if' statement always returns true, even with extreme values like
-100.0 vertex.z or criticalHeights[2] 100.0
Please find attached output of glxinfo.
Thanks.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1176818/+subscriptions
--
Mailing list: https://launchpad.net/~desktop-packages
Post to : desktop-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~desktop-packages
More help : https://help.launchpad.net/ListHelp
