On Tuesday 23 November 2010, Nikos Chantziaras wrote:
> On 11/23/2010 02:20 AM, Robin Atwood wrote:
> > On Tuesday 23 November 2010, Nikos Chantziaras wrote:
> >> On 11/22/2010 09:40 PM, Robin Atwood wrote:
> >>> On Tuesday 23 November 2010, Nikos Chantziaras wrote:
> >>>> On 11/22/2010 07:02 PM, Robin Atwood wrote:
> >>>>> I have just gone through the steps to use the Radeon KMS driver on my
> >>>>> old laptop which has an RV350 [Mobility Radeon 9600 M10]. Everything
> >>>>> seems to work all right and I get the right "render string" from
> >>>>> glxinfo. However, I thought it might enable compositing to work on
> >>>>> the KDE4 desktop but there is no change. What's more, glxgears used
> >>>>> to give about 2200 FPS but now it's 50! So have I been wasting my
> >>>>> time?
> >>>>
> >>>> You have to enable compositing yourself in System Settings.
> >>>
> >>> Of course, but it didn't take.
> >>>
> >>>> KMS means you're using DRI2 now, which results in a VSync'ed OpenGL
> >>>> rendering. Though I'd expect 60FPS because of VSync, not 50 :-P
> >>>>
> >>>> One other thing you should do is to enable the "gallium" USE flag and
> >>>>
> >>>> re-emerge Mesa. Then switch to the Gallium driver using:
> >>>> eselect mesa r300 gallium
> >>>>
> >>>> Because that driver is the recommended one for your hardware (R300).
> >>>> The classic driver should be avoided.
> >>>
> >>> Thanks, I would try that, but...
> >>>
> >>> # emerge -av media-libs/mesa
> >>>
> >>> These are the packages that would be merged, in order:
> >>>
> >>> Calculating dependencies... done!
> >>> [ebuild U ] x11-libs/libX11-1.4.0 [1.3.6] USE="-doc -ipv6
> >>> -static-libs - test (-xcb%*)" 2,036 kB
> >>> [ebuild R ] media-libs/mesa-7.8.2 USE="nptl pic xcb -debug
> >>> (-gallium) - motif (-selinux)" VIDEO_CARDS="radeon -intel -mach64 -mga
> >>> -nouveau -r128 - savage -sis -svga -tdfx -via" 0 kB
> >>>
> >>> I set "gallium" in /etc/make.conf but (-gallium) means the flag is
> >>> turned off in a profile somewhere?
> >>
> >> Oh, you're not on ~arch. I assumed to much. I don't know how that
> >> works on old versions of the drivers and Mesa, or whether Gallium3D was
> >> any good with old versions of Mesa. I can only confirm that it works on
> >> recent versions.
> >>
> >> For your KDE problem, try adding/changing these in your
> >>
> >> ~/.kde4/share/config/kwinrc:
> >> [Compositing]
> >> Backend=OpenGL
> >> CheckIsSafe=false
> >> DisableChecks=true
> >> Enabled=true
> >> GLDirect=true
> >> GLTextureFilter=1
> >> GLVSync=false
> >> OpenGLIsUnsafe=false
> >
> > When I try to enable compositing KDE gives a message that it's not
> > possible. Setting "Disable checks" also gives an error message. So I
> > cannot see any actual benefit.
>
> Try the whole thing I posted, because some of the settings do *not* have
> a GUI button and can only be enabled/disabled by editing kwinrc.
Nah, the desktop failed to load. I am now trying mesa-7.9 from the x11
overlay.
-Robin
--
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Robin Atwood.
"Ship me somewheres east of Suez, where the best is like the worst,
Where there ain't no Ten Commandments an' a man can raise a thirst"
from "Mandalay" by Rudyard Kipling
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