Vladimir Dergachev wrote:
Hi,
I get lockups running anything other than glxgears.
I am running the 25 jan. snapshots of Xorg & r300_driver.
Are there any simple way to locate the functions that course lockups?
I was thinking of something like simple programs or tutorials.
Try NeHe tutorial - nehe.gamedev.net
In particular, it would be interesting to find out whether you can
run any programs that use textures.
for now I have tried lessons up to lesson 20.
only 2 give me problems
Lesson 16 causes a segfault. Can you make the driver recover the
original resolution after a segfault?
Lesson 20 causes a hard lockup.
Can you confirm if these Lessons work on R300?
Hi Rune,
I see the same problems on R300. I guess the segfault is possibly
due to trying to access framebuffer directly (as using fog triggers a
fallback). As for lesson20 I have no idea - try commenting out drawing
code and checking which part creates a lockup.
Btw, I am getting a partial lockup with lesson20 even without
r300_dri.so (when it is absent the driver falls back to software
rendering), so it might be due to mode switching.
Lesson 20 have 3 points that causes lockups (maybe more).
They are all related.
the first is at line 258-259:
glBindTexture(GL_TEXTURE_2D, texture[3]);
glBegin(GL_QUADS);
glBegin() is causing the lockup, but only when textures 1, 2, or 3.
if you change it to texture 4:
glBindTexture(GL_TEXTURE_2D, texture[4]);
glBegin(GL_QUADS);
The lesson will now run (until you press space).
To me it sounds rather strange that a texture causes the lockup.
Rune Petersen
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