| 1 |
Robin Atwood writes: |
| 2 |
|
| 3 |
> On Tuesday 23 November 2010, Nikos Chantziaras wrote: |
| 4 |
> > On 11/22/2010 07:02 PM, Robin Atwood wrote: |
| 5 |
> > > I have just gone through the steps to use the Radeon KMS driver on |
| 6 |
> > > my old laptop which has an RV350 [Mobility Radeon 9600 M10]. |
| 7 |
> > > Everything seems to work all right and I get the right "render |
| 8 |
> > > string" from glxinfo. However, I thought it might enable |
| 9 |
> > > compositing to work on the KDE4 desktop but there is no change. |
| 10 |
|
| 11 |
Hmm, I _think_ it didn't work for me either. Can't remember for sure, I |
| 12 |
only gave KMS a short try. But quake3 was totally unplayable with about 2 |
| 13 |
FPS. And I also had other problems, like the screen going black shortly |
| 14 |
after entering the LUKS passphrase during initramfs stage. The screen |
| 15 |
comes up again when X is started, but I prefer to see boot messages. |
| 16 |
|
| 17 |
|
| 18 |
> > > What's more, glxgears used to give about 2200 FPS but now it's 50! |
| 19 |
> > > So have I been wasting my time? |
| 20 |
[...] |
| 21 |
> > KMS means you're using DRI2 now, which results in a VSync'ed OpenGL |
| 22 |
> > rendering. Though I'd expect 60FPS because of VSync, not 50 :-P |
| 23 |
|
| 24 |
I also had 50 FPS, and would expect 60 with my TFT. |
| 25 |
|
| 26 |
|
| 27 |
> > One other thing you should do is to enable the "gallium" USE flag and |
| 28 |
> > |
| 29 |
> > re-emerge Mesa. Then switch to the Gallium driver using: |
| 30 |
> > eselect mesa r300 gallium |
| 31 |
> > |
| 32 |
> > Because that driver is the recommended one for your hardware (R300). |
| 33 |
> > The classic driver should be avoided. |
| 34 |
> |
| 35 |
> Thanks, I would try that, but... |
| 36 |
> |
| 37 |
> # emerge -av media-libs/mesa |
| 38 |
> |
| 39 |
> These are the packages that would be merged, in order: |
| 40 |
> |
| 41 |
> Calculating dependencies... done! |
| 42 |
> [ebuild U ] x11-libs/libX11-1.4.0 [1.3.6] USE="-doc -ipv6 |
| 43 |
> -static-libs - test (-xcb%*)" 2,036 kB |
| 44 |
> [ebuild R ] media-libs/mesa-7.8.2 USE="nptl pic xcb -debug |
| 45 |
> (-gallium) - motif (-selinux)" VIDEO_CARDS="radeon -intel -mach64 -mga |
| 46 |
> -nouveau -r128 - savage -sis -svga -tdfx -via" 0 kB |
| 47 |
> |
| 48 |
> I set "gallium" in /etc/make.conf but (-gallium) means the flag is |
| 49 |
> turned off in a profile somewhere? |
| 50 |
|
| 51 |
Yes, you can override it like this, if you feel brave: |
| 52 |
echo "-gallium" >> /etc/portage/profile/use.mask |
| 53 |
|
| 54 |
Wonko |
Archives