1080p replaced by 1080i
Popolon Knightmare
popolon59 at gmail.com
Wed Aug 1 03:32:12 PDT 2012
Good afternoon everybody,
My problem in a few words : my TV LG 55LW4500 is 1080p capable but Xorg
seems to use interlaced mode (1080i) .
More deeply, what I did to confirm the available resolutions :
root ~ # X :1 -verbose 6 > output.log 2>&1
root ~ # grep EDID output.log | grep "1920 x 1080"
(II) NVIDIA(0): "nvidia-auto-select" : 1920 x 1080 @ 60.0 Hz (from: EDID)
(II) NVIDIA(0): "1920x1080" : 1920 x 1080 @ 60.0 Hz (from: EDID)
(II) NVIDIA(0): "1920x1080_60" : 1920 x 1080 @ 60.0 Hz (from: EDID)
(II) NVIDIA(0): "1920x1080_60_0" : 1920 x 1080 @ 59.94/60 Hz (CEA-861B
Format 16) (from: EDID)
(II) NVIDIA(0): "1920x1080_50" : 1920 x 1080 @ 50 Hz (CEA-861B Format
31) (from: EDID)
(II) NVIDIA(0): "1920x1080_30" : 1920 x 1080 @ 29.97/30 Hz (CEA-861B
Format 34) (from: EDID)
(II) NVIDIA(0): "1920x1080_25" : 1920 x 1080 @ 25 Hz (CEA-861B Format
33) (from: EDID)
(II) NVIDIA(0): "1920x1080_24" : 1920 x 1080 @ 23.97/24 Hz (CEA-861B
Format 32) (from: EDID)
(II) NVIDIA(0): "1920x1080_60i" : 1920 x 1080 @ 59.94/60 Hz (CEA-861B
Format 5) (from: EDID)
(II) NVIDIA(0): "1920x1080_50i" : 1920 x 1080 @ 50 Hz Interlace
(CEA-861B Format 20) (from: EDID)
I do NOT want the display to be interlaced, so I skipped the interlaced
lines, getting this :
root ~ # grep EDID output.log | grep "1920 x 1080" | grep -vi interlace
(II) NVIDIA(0): "nvidia-auto-select" : 1920 x 1080 @ 60.0 Hz (from: EDID)
(II) NVIDIA(0): "1920x1080" : 1920 x 1080 @ 60.0 Hz (from: EDID)
(II) NVIDIA(0): "1920x1080_60" : 1920 x 1080 @ 60.0 Hz (from: EDID)
(II) NVIDIA(0): "1920x1080_60_0" : 1920 x 1080 @ 59.94/60 Hz (CEA-861B
Format 16) (from: EDID)
(II) NVIDIA(0): "1920x1080_50" : 1920 x 1080 @ 50 Hz (CEA-861B Format
31) (from: EDID)
(II) NVIDIA(0): "1920x1080_30" : 1920 x 1080 @ 29.97/30 Hz (CEA-861B
Format 34) (from: EDID)
(II) NVIDIA(0): "1920x1080_25" : 1920 x 1080 @ 25 Hz (CEA-861B Format
33) (from: EDID)
(II) NVIDIA(0): "1920x1080_24" : 1920 x 1080 @ 23.97/24 Hz (CEA-861B
Format 32) (from: EDID)
(II) NVIDIA(0): "1920x1080_60i" : 1920 x 1080 @ 59.94/60 Hz (CEA-861B
Format 5) (from: EDID)
Strange... the very last line dos not specify Interlaced but contains a
'i', meaning it. So, I skipped this one too.
We got this :
(II) NVIDIA(0): "nvidia-auto-select" : 1920 x 1080 @ 60.0 Hz (from: EDID)
(II) NVIDIA(0): "1920x1080" : 1920 x 1080 @ 60.0 Hz (from: EDID)
(II) NVIDIA(0): "1920x1080_60" : 1920 x 1080 @ 60.0 Hz (from: EDID)
(II) NVIDIA(0): "1920x1080_60_0" : 1920 x 1080 @ 59.94/60 Hz (CEA-861B
Format 16) (from: EDID)
(II) NVIDIA(0): "1920x1080_50" : 1920 x 1080 @ 50 Hz (CEA-861B Format
31) (from: EDID)
(II) NVIDIA(0): "1920x1080_30" : 1920 x 1080 @ 29.97/30 Hz (CEA-861B
Format 34) (from: EDID)
(II) NVIDIA(0): "1920x1080_25" : 1920 x 1080 @ 25 Hz (CEA-861B Format
33) (from: EDID)
(II) NVIDIA(0): "1920x1080_24" : 1920 x 1080 @ 23.97/24 Hz (CEA-861B
Format 32) (from: EDID)
=> My understanding is that this list is the available NOT interlaced
resolutions.
I put them in my xorg.conf (section Screen => SubSection => Modes), adding
all available resolutions (not only 1920x1080)
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 295.33 (buildd at allspice) Fri Mar 30 15:25:24
UTC 2012
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 "LG Electronics LG TV"
HorizSync 30.0 - 83.0
VertRefresh 58.0 - 62.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 9500 GT"
Option "Coolbits" "1"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "0"
Option "TwinViewXineramaInfoOrder" "DFP-1"
SubSection "Display"
Depth 24
Modes "1920x1080" "1920x1080_60" "1920x1080_60_0"
"1920x1080_50" "1920x1080_30" "1920x1080_25" "1920x1080_24" "1360x768_60_0"
"1280x1024_60" "1280x720" "1280x720_60" "1280x720_60_0" "1280x720_50"
"1152x864_75" "1024x768_60" "800x600_60" "720x576" "720x576_50" "720x480"
"720x480_60"
EndSubSection
EndSection
Section "Extensions"
Option "RENDER" "Enable"
Option "Composite" "Disable"
EndSection
Restarting ligthdm, Xorg log files said this :
root ~ # tail /var/log/Xorg.0.log
[132625.591] (**) Logitech USB Receiver: (accel) keeping acceleration
scheme 1
[132625.591] (**) Logitech USB Receiver: (accel) acceleration profile 0
[132625.591] (**) Logitech USB Receiver: (accel) acceleration factor: 2.000
[132625.591] (**) Logitech USB Receiver: (accel) acceleration threshold: 4
[132625.591] (II) config/udev: Adding input device Logitech USB Receiver
(/dev/input/mouse0)
[132625.591] (II) No input driver specified, ignoring this device.
[132625.591] (II) This device may have been added with another device file.
[132626.570] (II) NVIDIA(0): Setting mode "1920x1080_50i"
[132626.796] (II) XKB: reuse xkmfile
/var/lib/xkb/server-03AF3717FF3AB439A4BAABA686CCB40771CDF520.xkm
[132628.035] (II) NVIDIA(0): Setting mode "1920x1080_50i"
=> We're back to an interlaced mode I did not define.
Any idea ?
Thanks in advance.
Regards,
Popolon
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