[Bug 71887] New: Garbled output when rendering to a framebuffer object

[Bug 71887] New: Garbled output when rendering to a framebuffer object

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 1097 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=71887

          Priority: medium
            Bug ID: 71887
          Assignee: dri-devel@lists.freedesktop.org
           Summary: Garbled output when rendering to a framebuffer object
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: vluchits@gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: 9.2
         Component: Drivers/Gallium/r600
           Product: Mesa

Created attachment 89601
  --> https://bugs.freedesktop.org/attachment.cgi?id=89601&action=edit
3.11 screenshot

Hardware: AMD HD 5770
Motherboard: MSI 790FX-GD70

Upon updating to 3.12 Linux kernel noticed that render-to-texture (FBO) in
Warsow has regressed.

In 3.12 the target texture seems to contain random but consistent region of
video card's texture memory: the blueish pattern on the screenshot definitely
looks like a normalmap.

We could not reproduce the bug on another machine with AMD HD 67xx.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 2527 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 71887] Garbled output when rendering to a framebuffer object

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 296 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=71887

--- Comment #1 from Victor Luchits <vluchits@gmail.com> ---
Created attachment 89602
  --> https://bugs.freedesktop.org/attachment.cgi?id=89602&action=edit
3.12 kernel

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1191 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 71887] Garbled output when rendering to a framebuffer object

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 421 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=71887

Victor Luchits <vluchits@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #89602|3.12 kernel                 |3.12 screenshot
        description|                            |

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1080 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 71887] Garbled output when rendering to a framebuffer object

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 416 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=71887

Victor Luchits <vluchits@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #89601|text/plain                  |image/jpeg
          mime type|                            |

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1072 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 71887] Garbled output when rendering to a framebuffer object

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 244 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=71887

--- Comment #2 from Alex Deucher <agd5f@yahoo.com> ---
Did you only update your kernel or did you also update mesa?

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1021 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 71887] Garbled output when rendering to a framebuffer object

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 309 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=71887

--- Comment #3 from Victor Luchits <vluchits@gmail.com> ---
No I didn't. Do you recommend updating to 9.3/development version of Mesa to
see if the bug can not be reproduced there?

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1091 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 71887] Garbled output when rendering to a framebuffer object

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 244 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=71887

--- Comment #4 from Michel Dänzer <michel@daenzer.net> ---
If you only changed the kernel, can you bisect?

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1046 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 71887] Garbled output when rendering to a framebuffer object

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 417 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=71887

--- Comment #5 from Victor Luchits <vluchits@gmail.com> ---
Created attachment 89622
  --> https://bugs.freedesktop.org/attachment.cgi?id=89622&action=edit
3.12 + Mesa-dev (Intel) screenshot

Same spot on Intel Ivybridge Mobile (HD 4000). Looks identical both in Mesa 9.3
and Mesa 10-dev.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1358 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 71887] Garbled output when rendering to a framebuffer object

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 286 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=71887

--- Comment #6 from Victor Luchits <vluchits@gmail.com> ---
Ok, I will update to Mesa 10-dev when I get back home and if it doesn't help,
I'll try to bisect.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1068 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 71887] Garbled output when rendering to a framebuffer object

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 360 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=71887

--- Comment #7 from Victor Luchits <vluchits@gmail.com> ---
Ok, after mucho fruitless bisecting all I was able to figure out is that the
bug is reproducable on stock 3.11+ kernels but _not_ on 3.11 kernel shipped
with Ubuntu 13.10.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1142 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 71887] Garbled output when rendering to a framebuffer object

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 728 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=71887

Victor Luchits <vluchits@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |NOTABUG

--- Comment #8 from Victor Luchits <vluchits@gmail.com> ---
Turns out the issue was related to how glGenRenderbuffersEXT generated id
numbers for framebuffers. Apparently some kernel change affected the outcome
and in combination with bug in the game code caused the reported issue.

Resolving as NOTABUG.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 2209 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel