[ltp] Ati driver's install - "direct rendering: No" - Now radeon driver

[Alex Deucher]

On 6/7/06, Nate <nrs27@cornell.edu> wrote:
> Thanks for the couple of replies so far. I've tried to provide as much
> info below as could possibly be needed. My next try will be to post to a
> Xorg oriented forum, but I thought someone here might be able to help
> better, since we likely have similar hardware.
>
> This post has a few parts. If you can help with any of them, please do.
>
> 1. I ask that anyone with a valid xorg.conf for dual head using the
> ati/radeon open source driver on a T4* laptop with DRI working, to post
> or send to me their xorg.conf and Xorg.0.log. Even better if you're
> running FC5 and Xorg6.9 or 7.0. To know if DRI is working, do 'glxinfo |
> grep rendering' and see if it says "direct rendering: Yes".
>
> 2. I ask for help on my 3 levels of success using the radeon driver for
> dual head. I'm going to link to all 3 sets of xorg.conf and Xorg.0.log
> files on a webserver, and explain them below.
>
> 3. Even with DRI working, the performance of X is not great (In fact I
> cannot tell the difference between DRI working and not, except glxgears
> fps improves by nearly 10 times). For example, when changing tabs by
> clicking their names in firefox, I can tell you that first it draws the
> website, then switches the tab, then changes address bar. Also, when
> bringing an app on front of firefox (or vice versa), first the window
> manager draws the window, then the client application fills up the
> window. Lastly, when moving windows around they tend to smear or leave
> copies of themselves as trails. Even if I never get DRI working
> properly, I would like to fix desktop/window manager performance,
> because this is underlying reason I am doing all of this.
>
> As an aside, I found a bug report with the fglrx driver for the R2**
> series ati cards. Ati's update, just around the time that I was trying
> the driver's, broke something for a lot of people. Now instead, I am
> trying to setup the open-source radeon driver for dual head with DRI.
>
> I've had 3 different successes. First, I let system-config-display
> generate an xorg.conf. DRI support did not work with dual head, and
> suggested I used option MergedFB. Everything looks fine, but DRI does
> not work and desktop performance is slow.
>
> http://volvosmith.net/data/Xserverconfig/xorg.conf.bak200606071519-dual_nodri
> http://volvosmith.net/data/Xserverconfig/Xorg.0.log.bak200606071519-dual_nodri
> http://volvosmith.net/data/Xserverconfig/glxinfo.bak200606071519-dual_nodri
> http://volvosmith.net/data/Xserverconfig/lsmod.bak200606071519-dual_nodri
> http://volvosmith.net/data/Xserverconfig/lspci.bak200606071519-dual_nodri
>
> I had 2 partial successes using MergedFB.
>
> I setup MergedFB manually for lcd at 1400x1050 and crt at 1024x768. The
> Xorg log says:
> (EE) RADEON(0): Static buffer allocation failed.  Disabling DRI.
> (EE) RADEON(0): At least 33075 kB of video memory needed at this
> resolution and depth.
> My video card has 32mB, so perhaps it is simply impossible.
> Additionally, my crt screen is too small and pans around even though I
> think Option "MergedNonRectangular" is supposed to take care of this, I
> think. Also, desktop performance is slow.
>

I'm not sure why your desktop performance would be slow, everything
seems to be set up properly.  the reason your desktop pans around is
because your first meta-mode is 1400x1050-1024x768 not
1400x1050-1280x1024.  you'll need to use xrandr to switch the modes or
re-order you metamodes.  Also, if you want to use the DRI switch your
depth to 16.  Currently the DRI requires enough vram for static front,
back, and depth buffers.  For a 2680x1050 at depth 24 desktop, that's
approximately 2680 * 1050 * 4 bytes/pixel * 3. Depth 16 is only 2
bytes/pixel.

Alex


> http://volvosmith.net/data/Xserverconfig/xorg.conf.bak200606071740_dual_MergedFB_dri_1400x1050-1024x768_ERRORmemsize
> http://volvosmith.net/data/Xserverconfig/Xorg.0.log.bak200606071740_dual_MergedFB_dri_1400x1050-1024x768_ERRORmemsize
> http://volvosmith.net/data/Xserverconfig/glxinfo.bak200606071740_dual_MergedFB_dri_1400x1050-1024x768_ERRORmemsize
> http://volvosmith.net/data/Xserverconfig/lsmod.bak200606071740_dual_MergedFB_dri_1400x1050-1024x768_ERRORmemsize
> http://volvosmith.net/data/Xserverconfig/lspci.bak200606071740_dual_MergedFB_dri_1400x1050-1024x768_ERRORmemsize
> http://volvosmith.net/data/Xserverconfig/dmesgagp.bak200606071740_dual_MergedFB_dri_1400x1050-1024x768_ERRORmemsize
>
>
> Finally, I shrinked the resolutions of both lcd and crt to both
> 1024x768. This worked with DRI, but, my laptop is not at its native
> resolution and desktop performance is slow.
>
> http://volvosmith.net/data/Xserverconfig/xorg.conf.bak200606071732_dual_MergedFB_dri_1024x768only
> http://volvosmith.net/data/Xserverconfig/Xorg.0.log.bak200606071732_dual_MergedFB_dri_1024x768only
> http://volvosmith.net/data/Xserverconfig/glxinfo.bak200606071732_dual_MergedFB_dri_1024x768only
> http://volvosmith.net/data/Xserverconfig/lsmod.bak200606071732_dual_MergedFB_dri_1024x768only
> http://volvosmith.net/data/Xserverconfig/lspci.bak200606071732_dual_MergedFB_dri_1024x768only
>
> Laurent,
> [root@blackbox ~]# rpm -qa | grep mesa
> mesa-libGLU-6.4.2-6
> mesa-libGL-devel-6.4.2-6
> mesa-libGL-6.4.2-6
>
> Thanks,
> Nathan
>
> Florian Reitmeir wrote:
> > Hi,
> >
> > make sure you loaded your agp modules agpgart and intel-agp i guess.
> > If this doesn't help, please post 'lsmod' and 'lspci' outputs, the two are
> > missing in your mail.
> >
> > On Son, 04 Jun 2006, Nate wrote:
> >
> >
> >> To try to get 3d support working in FC5 for my Thinkpad T41 with ati
> >> radeon 9000, I followed the fedorafaq.org instructions. My system gets
> >> an average of 115fps running glxgears. My hope was to get my system up
> >> to speed so that my 2d performance is as good as it can be. The
> >> following is what I attempted, outputs, and my xorg.conf and X.org log.
> >> I'm at a loss because I followed the directions, and then googled for my
> >> issue but there were few hits.
> >>
> >
> >
>