Checar placa de vídeo.

[Rsrocha]

Caros amigos, com a seguinte configuração é possível ter acesso a efeitos visuais "Normal"
ronaldo@ronaldo-desktop:~$ lspci -v
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 760/M760 Host (rev 03)
   Subsystem: Foxconn International, Inc. Device 0c92
   Flags: bus master, medium devsel, latency 32
   Memory at d8000000 (32-bit, non-prefetchable) [size=128M]
   Capabilities: <access denied>
   Kernel driver in use: agpgart-amd64
   Kernel modules: sis-agp, amd64-agp

00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SG86C202
   Flags: bus master, 66MHz, medium devsel, latency 99
   Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
   I/O behind bridge: 0000d000-0000dfff
   Memory behind bridge: e8000000-e80fffff
   Prefetchable memory behind bridge: e0000000-e7ffffff
   Kernel modules: shpchp

00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS964 [MuTIOL Media IO] (rev 36)
   Flags: bus master, medium devsel, latency 0

00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev 01) (prog-if 80 [Master])
   Subsystem: Foxconn International, Inc. Device 0c92
   Flags: bus master, medium devsel, latency 128
   I/O ports at 01f0
   I/O ports at 03f4
   I/O ports at 0170
   I/O ports at 0374
   I/O ports at 4000
   Kernel driver in use: pata_sis

00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] AC'97 Sound Controller (rev a0)
   Subsystem: Foxconn International, Inc. Device 0c92
   Flags: bus master, medium devsel, latency 32, IRQ 18
   I/O ports at e000
   I/O ports at e800
   Capabilities: <access denied>
   Kernel driver in use: Intel ICH
   Kernel modules: snd-intel8x0

00:03.0 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f) (prog-if 10)
   Subsystem: Foxconn International, Inc. Device 0c92
   Flags: bus master, medium devsel, latency 32, IRQ 20
   Memory at e8133000 (32-bit, non-prefetchable) [size=4K]
   Kernel driver in use: ohci_hcd

00:03.1 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f) (prog-if 10)
   Subsystem: Foxconn International, Inc. Device 0c92
   Flags: bus master, medium devsel, latency 32, IRQ 21
   Memory at e8134000 (32-bit, non-prefetchable) [size=4K]
   Kernel driver in use: ohci_hcd

00:03.2 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f) (prog-if 10)
   Subsystem: Foxconn International, Inc. Device 0c92
   Flags: bus master, medium devsel, latency 32, IRQ 22
   Memory at e8130000 (32-bit, non-prefetchable) [size=4K]
   Kernel driver in use: ohci_hcd

00:03.3 USB Controller: Silicon Integrated Systems [SiS] USB 2.0 Controller (prog-if 20)
   Subsystem: Silicon Integrated Systems [SiS] USB 2.0 Controller
   Flags: bus master, medium devsel, latency 32, IRQ 23
   Memory at e8131000 (32-bit, non-prefetchable) [size=4K]
   Capabilities: <access denied>
   Kernel driver in use: ehci_hcd

00:04.0 Ethernet controller: Silicon Integrated Systems [SiS] SiS900 PCI Fast Ethernet (rev 91)
   Subsystem: Foxconn International, Inc. Device 0c92
   Flags: bus master, medium devsel, latency 32, IRQ 19
   I/O ports at e400
   Memory at e8132000 (32-bit, non-prefetchable) [size=4K]
   [virtual] Expansion ROM at 30000000 [disabled] [size=128K]
   Capabilities: <access denied>
   Kernel driver in use: sis900
   Kernel modules: sis900

00:05.0 IDE interface: Silicon Integrated Systems [SiS] RAID bus controller 180 SATA/PATA  [SiS] (rev 01) (prog-if 85 [Master SecO PriO])
   Subsystem: Foxconn International, Inc. Device 0c92
   Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 17
   I/O ports at e900
   I/O ports at ea00
   I/O ports at eb00
   I/O ports at ec00
   I/O ports at ed00
   I/O ports at <unassigned>
   Capabilities: <access denied>
   Kernel driver in use: sata_sis

00:09.0 Communication controller: Conexant Systems, Inc. Conexant SoftK56 Data/Fax Modem (rev 01)
   Subsystem: Conexant Systems, Inc. Device 205f
   Flags: bus master, medium devsel, latency 32, IRQ 10
   Memory at e8120000 (32-bit, non-prefetchable) [size=64K]
   I/O ports at ee00
   Capabilities: <access denied>

00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
   Flags: fast devsel
   Capabilities: <access denied>

00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
   Flags: fast devsel

00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
   Flags: fast devsel

00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
   Flags: fast devsel
   Kernel driver in use: k8temp
   Kernel modules: k8temp

01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] 661/741/760 PCI/AGP or 662/761Gx PCIE VGA Display Adapter
   Subsystem: Foxconn International, Inc. Device 0c92
   Flags: 66MHz, medium devsel, IRQ 5
   BIST result: 00
   Memory at e0000000 (32-bit, prefetchable) [size=128M]
   Memory at e8000000 (32-bit, non-prefetchable) [size=128K]
   I/O ports at d000
   Capabilities: <access denied>
   Kernel modules: sisfb

ronaldo@ronaldo-desktop:~$

[Rsrocha]

ronaldo@ronaldo-desktop:~$ glxinfo|grep rendering
direct rendering: Yes
ronaldo@ronaldo-desktop:~$