Re: System hang with ATI's lousy driver

[Timothy Miller <miller@techsource.com>]

Jan De Luyck wrote:
> On Tuesday 20 April 2004 21:28, Joel Jaeggli wrote:
> 
> 
>>kernel drm + xfree86 driver will actually provide accelerated opengl
>>support in Xwindows albiet without quite as many hardware features as the
>>proprietary driver on all the rv2xx chipsets including the 9000 but not
>>on the later models.
>>
>>kernel drm & radeonfb have been reported to not play very well with each
>>other in other venues. vesafb is known to work in this situation though.
> 
> 
> I have that particular setup running quite satisfactory now for a few months, 
> using a Radeon 9000 Mobile chip. No problems at all.
> 


I discovered why I thought the Mesa driver wasn't working.  It turns out 
that kscreensaver is broken.  If I use xscreensaver, or the screen saver 
starts from Gnome, or I run the OpenGL program stand-alone, everything 
works fine.  But if I use KDE's screen saver program or it starts 
automatically in KDE, OpenGL screen savers get all flickery, as if 
double-buffering had been disabled.

Apparently, this is a long out-standing bug in KDE.


The only bit of this that is not off-topic is that ATI's proprietary 
drivers are broken, because they don't get along with radeonfb.