Estou executando o Ubuntu 11.04 x86_64 2.6.38-10 genérico. Eu tenho dois GTX 460s, e estou usando o driver Nvidia 270.41.06. Sem o SLI ativado, o computador funciona bem. No entanto, após executar nvidia-xconfig --sli=Auto
e reinicializar, o desempenho cai. Quando eu faço qualquer coisa, até mesmo tão simples quanto rolar uma página da Web, ela fica entrecortada e as placas ficam excessivamente quentes (no vermelho nas Configurações da Nvidia X Server). No Windows 7, isso não é um problema (tornando isso ainda mais irritante). O SLI parece estar "funcionando", já que nvidia-xconfig --query-gpu-info
mostra as duas placas anexadas à tela no SLi.
Alguma idéia?
Aqui está o meu xorg.conf:
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 270.41.06 ([email protected]) Mon Apr 18 15:14:00 PDT 2011
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 270.29 (buildd@allspice) Fri Feb 25 14:42:07 UTC 2011
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "0"
EndSection
Section "Files"
EndSection
Section "InputDevice"
# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
# generated from default
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Ancor Communications Inc VE228"
HorizSync 30.0 - 83.0
VertRefresh 50.0 - 76.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce GTX 460"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "0"
Option "metamodes" "nvidia-auto-select +0+0"
Option "SLI" "Auto"
SubSection "Display"
Depth 24
EndSubSection
EndSection
Aqui está tudo depois de executar
nvidia-xconfig -a --sli=Auto
. Ele funciona da mesma forma e acredito que o gpu-query-info é o mesmo de antes.
xorg.conf
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 275.19 ([email protected]) Tue Jul 12 18:35:38 PDT 2011
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 270.29 (buildd@allspice) Fri Feb 25 14:42:07 UTC 2011
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0"
Screen 1 "Screen1" RightOf "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "0"
EndSection
Section "Files"
EndSection
Section "InputDevice"
# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
# generated from default
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Unknown"
HorizSync 28.0 - 33.0
VertRefresh 43.0 - 72.0
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Unknown"
ModelName "Unknown"
HorizSync 28.0 - 33.0
VertRefresh 43.0 - 72.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce GTX 460"
BusID "PCI:1:0:0"
EndSection
Section "Device"
Identifier "Device1"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce GTX 460"
BusID "PCI:3:0:0"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "SLI" "Auto"
SubSection "Display"
Depth 24
EndSubSection
EndSection
Section "Screen"
Identifier "Screen1"
Device "Device1"
Monitor "Monitor1"
DefaultDepth 24
Option "SLI" "Auto"
SubSection "Display"
Depth 24
EndSubSection
EndSection
lspci | grep VGA
01:00.0 VGA compatible controller: nVidia Corporation GF104 [GeForce GTX 460] (rev a1)
03:00.0 VGA compatible controller: nVidia Corporation GF104 [GeForce GTX 460] (rev a1)
sudo nvidia-xconfig --query-gpu-info
Number of GPUs: 2
GPU #0:
Name : GeForce GTX 460
PCI BusID : PCI:1:0:0
Number of Display Devices: 1
Display Device 0 (DFP-0):
EDID Name : Ancor Communications Inc VE228
Minimum HorizSync : 30.000 kHz
Maximum HorizSync : 83.000 kHz
Minimum VertRefresh : 50 Hz
Maximum VertRefresh : 76 Hz
Maximum PixelClock : 170.000 MHz
Maximum Width : 1920 pixels
Maximum Height : 1080 pixels
Preferred Width : 1920 pixels
Preferred Height : 1080 pixels
Preferred VertRefresh : 60 Hz
Physical Width : 480 mm
Physical Height : 270 mm
GPU #1:
Name : GeForce GTX 460
PCI BusID : PCI:3:0:0
Number of Display Devices: 1
Display Device 0 (DFP-0):
EDID Name : Ancor Communications Inc VE228
Minimum HorizSync : 30.000 kHz
Maximum HorizSync : 83.000 kHz
Minimum VertRefresh : 50 Hz
Maximum VertRefresh : 76 Hz
Maximum PixelClock : 170.000 MHz
Maximum Width : 1920 pixels
Maximum Height : 1080 pixels
Preferred Width : 1920 pixels
Preferred Height : 1080 pixels
Preferred VertRefresh : 60 Hz
Physical Width : 480 mm
Physical Height : 270 mm
EDITAR: atualizei para 275.19, sem alterações.
EDIT: Acabou vendendo o segundo. Problema resolvido, eu acho.