[LAU] rt prio with kernel 3.x, issue to use the vesa driver

From: Ralf Mardorf <ralf.mardorf@email-addr-hidden-dsl.net>
Date: Sun May 06 2012 - 14:43:32 EEST

That for a shared IRQ the graphics will become an unwanted high prio
doesn't happen with a kernel 2.6.31-rt19 + NVIDIA 195.36.15 on Suse 11.2
on my machine.
As already reported, it also doesn't happen with the kernels
3.0.23-avl-7-pae (threadirqs) and 3.0.23-rt40 on current AV Linux, where
still the nv driver is available and used on my machine.
IIUC it's definitive related to the kernel, I anyway will test the vesa
driver with Ubuntu Studio Precise, but can' get it working.
I modified the xorg.conf I use with the nvida driver, startup ends with
tty, no X. Does anybody notice what I might have missed?

Latest modification:

Section "ServerLayout"
        Identifier "X.org Configured"
        Screen 0 "Screen0" 0 0
        InputDevice "Mouse0" "CorePointer"
        InputDevice "Keyboard0" "CoreKeyboard"
EndSection

Section "Module"
        #Load "glx"
        #Load "dbe"
        #Load "dri2"
        #Load "extmod"
        #Load "record"
EndSection

Section "InputDevice"
        Identifier "Keyboard0"
        Driver "kbd"
        Option "XkbRules" "xorg"
        Option "XkbModel" "pc105"
        Option "XkbLayout" "de"
        Option "XkbVariant" "ro"
        Option "XkbOptions" "lv3:ralt_switch"
EndSection

Section "InputDevice"
        Identifier "Mouse0"
        Driver "mouse"
        Option "Protocol" "auto"
        Option "Device" "/dev/input/mice"
        Option "ZAxisMapping" "4 5 6 7"
EndSection

Section "Monitor"
        Identifier "Monitor0"
        VendorName "Monitor Vendor"
        ModelName "Monitor Model"
          DisplaySize 305 230
          HorizSync 29-98
          VertRefresh 50-120
        #modeline "1152x864" 128.42 1152 1232 1360 1568 864 865 868 910
          #Gamma 1.0
EndSection

Section "Device"
        Identifier "Card0"
        Driver "vesa"
        #Option "Coolbits" "1"
        #Option "AddARGBGLXVisuals" "true"
        #Option "TripleBuffer" "false"
        #VendorName "nVidia Corporation"
        #BoardName "G72 [GeForce 7300 SE/7200 GS]"
        BusID "PCI:1:0:0"
EndSection

Section "Screen"
        Identifier "Screen0"
        Device "Card0"
        Monitor "Monitor0"
        SubSection "Display"
                #Viewport 0 0
                #Depth 24
                #Modes "1152x864"
                #Virtual 3840 1200
        EndSubSection
EndSection

#Section "Extensions"
# Option "Composite" "enable"
#EndSection

Regards,
Ralf

PS: If there won't be an rtirq script able to handle it or any other way
to do it, I hadn't time to test until now, I'll simply will use a kernel
<= 3.0 instead > 3.0.

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Received on Sun May 6 16:15:02 2012

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