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« on: January 16, 2008, 04:26:02 am »
Long story short, I have been able to successfully setup LinuxMCE on my hardware after several weeks of trail and error. Now that I have both HD tuner cards working, Live TV and recorded programs are sluggish. It doesn't skip anything, it will pause for a split second or more and then continue playing. I opened up the sys monitor and it shows the CPU is being maxed. I think this may be an IRQ issue but I am not sure. Here is the odd thing. I first installed Mythbuntu on this same setup and after getting everything to work on it, it works great, no stuttering. Therefore I know it is not a hardware issue and the CPE runs at about 50%. So if I can get it to work so well in Mythbuntu why am I having this issue in Linuxmce?
My hardware is as follows:
MB MSI K8T Neo with VIA K8T800 North Bride & VT8237 South Bridge / AGP slot for video card
CPU AMD 64bit 3200
Ram 1GB DDR400 SDRAM
Video card ATI 9800 256MB Ram / AGP
Hard drive 250GB Ultra ATA 133
HD Tuner cards Dvico FusionHDTV5 Lite ATI HDWonder (getting these to work took the longest)
I think it may be an IRQ issue because when I look at the interrupts file my video card doesn't show up
dcerouter_55192:~# cat /proc/interrupts
CPU0
0: 1452365 IO-APIC-edge timer
1: 6061 IO-APIC-edge i8042
6: 5 IO-APIC-edge floppy
8: 283207 IO-APIC-edge rtc
9: 1 IO-APIC-fasteoi acpi
12: 170396 IO-APIC-edge i8042
14: 54721 IO-APIC-edge ide0
15: 85691 IO-APIC-edge ide1
17: 0 IO-APIC-fasteoi uhci_hcd:usb1, uhci_hcd:usb2, uhci_hcd:usb3, uhci_hcd:usb4, ehci_hcd:usb5
18: 957005 IO-APIC-fasteoi eth0
19: 139817 IO-APIC-fasteoi bttv0, bt878
20: 15973 IO-APIC-fasteoi cx88[0], cx88[0], cx88[0]
21: 17992 IO-APIC-fasteoi VIA8237
NMI: 0
LOC: 1452290
ERR: 0
MIS: 0
When I look at the interrupts file in mythbuntu, it looks like this, notice eth0 is sharing IRQ 16 with the video card which works fine and Mythbuntu finds the SATA also.
CPU0
0: 139 IO-APIC-edge timer
1: 1037 IO-APIC-edge i8042
6: 5 IO-APIC-edge floppy
8: 3 IO-APIC-edge rtc
9: 0 IO-APIC-fasteoi acpi
12: 24991 IO-APIC-edge i8042
14: 13650 IO-APIC-edge ide0
15: 199530 IO-APIC-edge ide1
16: 383903 IO-APIC-fasteoi eth0, radeon@pci:0000:01:00.0
17: 121 IO-APIC-fasteoi sata_via
18: 1523 IO-APIC-fasteoi uhci_hcd:usb1, uhci_hcd:usb2, uhci_hcd:usb3, uhci_hcd:usb4, ehci_hcd:usb5
19: 51321 IO-APIC-fasteoi bttv0, bt878
20: 9824 IO-APIC-fasteoi cx88[0], cx88[0], cx88[0]
21: 1371 IO-APIC-fasteoi VIA8237
NMI: 0
LOC: 1163768
ERR: 0
MIS: 0
Here is my xorg.conf file in case someone wants to look at it. I am not using the proprietary driver because it makes the video stretch vertically and it doesn't fix the choppy video issue.
dcerouter_55192:~# cat /etc/X11/xorg.conf
# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf(5) manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
# sudo dpkg-reconfigure -phigh xserver-xorg
Section "Files"
FontPath "/usr/share/fonts/X11/misc"
FontPath "/usr/share/fonts/X11/cyrillic"
FontPath "/usr/share/fonts/X11/100dpi/:unscaled"
FontPath "/usr/share/fonts/X11/75dpi/:unscaled"
FontPath "/usr/share/fonts/X11/Type1"
FontPath "/usr/share/fonts/X11/100dpi"
FontPath "/usr/share/fonts/X11/75dpi"
# path to defoma fonts
FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection
Section "Module"
Load "i2c"
Load "bitmap"
Load "ddc"
Load "dri"
Load "extmod"
Load "freetype"
Load "glx"
Load "int10"
Load "vbe"
Load "dbe"
Load "record"
Load "xtrap"
Load "speedo"
Load "type1"
Load "v4l"
EndSection
Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "CoreKeyboard"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ImPS/2"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons" "true"
EndSection
Section "InputDevice"
Driver "wacom"
Identifier "stylus"
Option "Device" "/dev/input/wacom"
Option "Type" "stylus"
Option "ForceDevice" "ISDV4" # Tablet PC ONLY
EndSection
Section "InputDevice"
Driver "wacom"
Identifier "eraser"
Option "Device" "/dev/input/wacom"
Option "Type" "eraser"
Option "ForceDevice" "ISDV4" # Tablet PC ONLY
EndSection
Section "InputDevice"
Driver "wacom"
Identifier "cursor"
Option "Device" "/dev/input/wacom"
Option "Type" "cursor"
Option "ForceDevice" "ISDV4" # Tablet PC ONLY
EndSection
Section "Device"
Identifier "ATI Technologies Inc Radeon R350 [Radeon 9800 Pro]"
Driver "ati"
BusID "PCI:1:0:0"
Option "ConnectedMonitor" "CRT"
EndSection
Section "Monitor"
Identifier "Generic Monitor"
Option "DPMS"
HorizSync 20-500
VertRefresh 59-61
EndSection
Section "Screen"
Identifier "Default Screen"
Device "ATI Technologies Inc Radeon R350 [Radeon 9800 Pro]"
Monitor "Generic Monitor"
DefaultDepth 24
SubSection "Display"
Depth 1
Modes "1280x1024"
Virtual 1280 1024
EndSubSection
SubSection "Display"
Depth 4
Modes "1280x1024"
Virtual 1280 1024
EndSubSection
SubSection "Display"
Depth 8
Modes "1280x1024"
Virtual 1280 1024
EndSubSection
SubSection "Display"
Depth 15
Modes "1280x1024"
Virtual 1280 1024
EndSubSection
SubSection "Display"
Depth 16
Modes "1280x1024"
Virtual 1280 1024
EndSubSection
SubSection "Display"
Depth 24
Modes "1280x1024"
Virtual 1280 1024
EndSubSection
Option "TVStandard" "1280x1024"
EndSection
Section "ServerLayout"
Identifier "Default Layout"
Screen "Default Screen"
InputDevice "Generic Keyboard"
InputDevice "Configured Mouse"
InputDevice "stylus" "SendCoreEvents"
InputDevice "cursor" "SendCoreEvents"
InputDevice "eraser" "SendCoreEvents"
EndSection
Section "DRI"
Mode 0666
EndSection
Section "Extensions"
Option "Composite" "false"
Option "RENDER" "true"
EndSection
Any help on this issue would be greatly appreciated, I am so close to getting this up and working, I hate to give up now!
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