Install the proprietary Catalyst (fglrx) drivers from ATI/AMD. We don't
currently support Mesa. There generally isn't much impetus to do so,
because if you're using software rendering, you might as well use Mesa
directly-- either through the built-in version that TigerVNC supplies
via its GLX extension, or by using Mesa in-process
(http://www.virtualgl.org/Documentation/Mesa).
There are certain scenarios under which using Mesa with a DRI back end
might be marginally beneficial-- for instance, using Intel's DRI driver
can improve performance on Intel GPUs by 10x over software rendering,
but a 10x improvement still puts them at a 10x deficit relative to even
a 3-year-old low-end nVidia or ATI workstation-class GPU (~3 million
polys/sec for software, ~30 million for Intel, ~400 million for a Quadro
600.) You can get a Quadro 600 or FirePro V4900 for less than $200, so
it's not as if the barrier to entry is particular high.
On 8/16/13 10:33 PM, Bob B. wrote:
> Hello,
>
> I get the following error when trying to run glxgears through virtualgl
> to tigervnc xserver. Anyone know why? I have followed the instructions
> in the VirtualGL user guide for installing and configuring VirtualGL
> server.
>
> I can't undertstand why the VGL is trying to load the sw rendering
> driver after it has successfully loaded the radeon driver. I also can't
> understand why the glxgears application is trying to query the Xproxy
> (:20) for DRI2 and Xfree86-DRI extensions. That doesn't make sense to me.
>
> Test platform:
> Fedora 19 on x86 PC
> Radeon X300 Video Card
> My 2D Xserver (X proxy) is tigervnc (:20). version 1.3.0-3.fc19.i686
> Mesa: 9.2-0.14.20130723.fc19.i686
> VirtualGL: 2.3.2-5.fc19.i686
>
>
> [bob@sherpa ~]$ vglrun +v +tr -- glxgears
> [VGL] Shared memory segment ID for vglconfig: 491522
> [VGL] XOpenDisplay (name=NULL [VGL] VirtualGL v2.3.2 32-bit (Build
> 20130506)
> [VGL] Opening local display :0
>
> [VGL] XQueryExtension (dpy=0x09789610(:20) name=XKEYBOARD
> *major_opcode=136 *first_event=88 *first_error=137 ) 0.123033 ms
> [VGL] dpy=0x09789610(:20) ) 4.379883 ms
> [VGL] glXChooseVisual (dpy=0x09789610(:20) screen=0 attrib_list=[0x0004
> 0x0005 0x0008=0x0001 0x0009=0x0001 0x000a=0x0001 0x000c=0x0001 ] [VGL]
> dlopen (filename=libGL.so.1 flag=258[VGL] NOTICE: Replacing
> dlopen("libGL.so.1") with dlopen("librrfaker.so")
> retval=0xb77816d8)
> libGL: OpenDriver: trying /usr/lib/dri/tls/r300_dri.so
> [VGL] dlopen (filename=/usr/lib/dri/tls/r300_dri.so flag=258
> retval=0x00000000)
> libGL: OpenDriver: trying /usr/lib/dri/r300_dri.so
> [VGL] dlopen (filename=/usr/lib/dri/r300_dri.so flag=258 retval=0x0979f858)
> [VGL] dlopen (filename=libtxc_dxtn.so flag=257 retval=0x00000000)
> libGL: Can't open configuration file /home/bob/.drirc: No such file or
> directory.
> libGL: Can't open configuration file /home/bob/.drirc: No such file or
> directory.
>
> [VGL] XQueryExtension (dpy=0x09789610(:20) name=GLX *major_opcode=149
> *first_event=97 *first_error=155 ) 0.067085 ms
> [VGL]
> [VGL] XQueryExtension (dpy=0x09789610(:20) name=DRI2 *major_opcode=0
> *first_event=0 *first_error=0 ) 0.072050 ms
> [VGL]
> [VGL] XQueryExtension (dpy=0x09789610(:20) name=XFree86-DRI
> *major_opcode=0 *first_event=0 *first_error=0 ) 0.065908 ms
> [VGL] [VGL] dlopen (filename=libGL.so.1 flag=258[VGL] NOTICE: Replacing
> dlopen("libGL.so.1") with dlopen("librrfaker.so")
> retval=0xb77816d8)
> libGL: OpenDriver: trying /usr/lib/dri/tls/swrast_dri.so
> [VGL] dlopen (filename=/usr/lib/dri/tls/swrast_dri.so flag=258
> retval=0x00000000)
> libGL: OpenDriver: trying /usr/lib/dri/swrast_dri.so
> [VGL] dlopen (filename=/usr/lib/dri/swrast_dri.so flag=258
> retval=0x097bb160)
> Segmentation fault (core dumped)
> [bob@sherpa ~]$
>
>
>
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