[ltp] Re: OT: Google Release GoogleEarth Linux

D. Sen linux-thinkpad@linux-thinkpad.org
Sat, 12 Aug 2006 12:21:30 +1000


Alex Deucher wrote:
> On 8/11/06, D. Sen <dsen@ieee.org> wrote:
>> Using the latest (CVS) Mesa, drm and  xf86-video-ati (git) results in
>> googleearth producing the following lines (again):
>>
>> *********************************WARN_ONCE********************************* 
>>
>> File r300_render.c function r300Fallback line 412
>> Software fallback:ctx->Line.SmoothFlag
>> *************************************************************************** 
>>
>>
>> So, it looks like the relevant line in r300_render.c needs to be
>> commented out again to enable googleearth (and other applications) to
>> use 3D acceleration. Why hasnt the line been commented out in CVS?
> 
> Because it's not a bug!  the r300 drivers does not currently support
> smooth lines in hardware so when a GL app calls for them they have to
> be drawn with software.  You cannot just arbitrarily ignore certain
> primitives.  Not drawing the line may not produce a noticeable
> difference in googleearth, but it may in other apps.

Fine. Thats just semantics though. If its not a "Bug" (who called it a 
bug anyway?)...its definitely an ISSUE.

The current status of the ISSUE then is that its unresolved. The 
workaround (commenting out that line) may well render the machine 
unstable. From all reports the fglrx driver does not have this ISSUE.

DS

> 
> Alex
> 
>>
>> Shem Multinymous wrote:
>> > On 8/9/06, D. Sen <dsen@ieee.org> wrote:
>> >> Just wondering if there has been any updates/changes to xorg/Mesa that
>> >> resolves the lockup problems discussed below (without the changes
>> >> recommended in xorg.conf below)
>> >
>> > Current Mesa CVS + X.org git have fixed related bugs. I think it's now
>> > stable or nearly so , without the xorg.conf changes.
>> >
>> > If it isn't, please *do* file a bug.
>> >
>> >  Shem