Bug 92959

Summary: [NV1F celcius GeForce4 MX] Rendering artifacts, screen corruption, system reset.
Product: Mesa Reporter: Exidux <eximius.dux>
Component: Drivers/DRI/nouveauAssignee: Nouveau Project <nouveau>
Status: RESOLVED MOVED QA Contact: Nouveau Project <nouveau>
Severity: major    
Priority: medium    
Version: unspecified   
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments: dmesg after booting.
Dosbox using opengl - example 1
Dosbox using opengl - example 2 - distortion patern
Dosbox using opengl - example 3 - distortion patern
text file with used version numbers nouveau, mesa.
divide clock by 1000

Description Exidux 2015-11-15 10:19:04 UTC
Created attachment 119671 [details]
dmesg after booting.

The system displays rendering artifacts. 

The first ones to appear are thin lines flashing around on the lower half of the screen. Once a single (or multiple) program(s) is opened which use Opengl the screen will become partially distorted  and usually (but not always) in the lower half area. 

Typical glitches seem to be made up of fragments of what is shown on screen.

In most cases the computer needs a reboot to get back to a nearly clean desktop.

It gets triggered, or rather worsened by programs which use Opengl.

Vlc media player, while using the Xvideo output(XCB), will only suffer the anoying twitching glitch on the lower part of the screen, which also affects the desktop.

This happened twice and will not be tested again for the sake of my hardware ;
The system will reset without warning if running Opengl video, games, programs in full screen for prolonged times.
Comment 1 Exidux 2015-11-15 10:21:58 UTC
Created attachment 119672 [details]
Dosbox using opengl - example 1

This is a screenshot to show the rendering artifacts while also showing that the desktop is "relatively" stable. What can not be seen is the nt easy to capture "glitching" on the desktop.
Comment 2 Exidux 2015-11-15 10:23:41 UTC
Created attachment 119673 [details]
Dosbox using opengl - example 2 - distortion patern

This is a screenshot to show the rendering artifacts while also showing that the desktop is "relatively" stable. What can not be seen is the nt easy to capture "glitching" on the desktop.
Comment 3 Exidux 2015-11-15 10:24:24 UTC
Created attachment 119674 [details]
Dosbox using opengl - example 3 - distortion patern

This is a screenshot to show the rendering artifacts while also showing that the desktop is "relatively" stable. What can not be seen is the nt easy to capture "glitching" on the desktop.
Comment 4 Exidux 2015-11-15 10:26:47 UTC
Created attachment 119675 [details]
text file with used version numbers nouveau, mesa.

Text file containing the version numbers of nouveau and mesa used on the system. Which i forgot to mention in the initial commit.
Comment 5 Ilia Mirkin 2015-11-17 01:32:18 UTC
Created attachment 119726 [details]
divide clock by 1000

This is probably a dup of bug 54587 but let's keep them separate. Does this patch have any effect?
Comment 6 GitLab Migration User 2019-09-18 20:41:48 UTC
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