hello
Using a normal Flat CRT Monitor " Hyundai X96 WA " via VGA , that supports maximal resolution of 1366 768 @60 HZ in case to get free flickering videos of some mpeg2 DVB Streams via vdpau Temporal .
My Question :
How to configure xorg.conf to get : 1366 768 @ 50 Hz
xrandr output :
Screen 0: minimum 8 x 8, current 1366 x 768, maximum 8192 x 8192
DVI-I-0 disconnected (normal left inverted right x axis y axis)
VGA-0 connected 1366x768+0+0 (normal left inverted right x axis y axis) 430mm x 255mm
1366x768 59.8*+
1280x720 60.0
1024x768 75.0 60.0
800x600 75.0 60.3
640x480 75.0 59.9
DVI-I-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)
Your monitor doesn’t support a 1366x768 @ 50 Hz mode in its EDID, so you’re going to have to add one using the ModeLine option in /etc/X11/xorg.conf. Please see the xorg.conf man page and the man page for the “gtf” program for information on how to do that.
Your custom 50 Hz mode might still get rejected by the monitor’s EDID, so if it doesn’t show up in the xrandr list, you should enable mode validation logging with “sudo nvidia-xconfig --mode-debug”, restart the X server, and then check /var/log/Xorg.0.log to see why your mode was rejected.
Thank you for the reply . I followed the instructions : The Log shows :
13671.203] (II) NVIDIA(GPU-0): Validating Mode “1368x768_50.00”:
[ 13671.203] (II) NVIDIA(GPU-0): 1368 x 768 @ 50 Hz
[ 13671.203] (II) NVIDIA(GPU-0): Mode Source: X Configuration file ModeLine
[ 13671.203] (II) NVIDIA(GPU-0): Pixel Clock : 69.92 MHz
[ 13671.203] (II) NVIDIA(GPU-0): HRes, HSyncStart : 1368, 1424
[ 13671.203] (II) NVIDIA(GPU-0): HSyncEnd, HTotal : 1568, 1768
[ 13671.203] (II) NVIDIA(GPU-0): VRes, VSyncStart : 768, 769
[ 13671.203] (II) NVIDIA(GPU-0): VSyncEnd, VTotal : 772, 791
[ 13671.203] (II) NVIDIA(GPU-0): H/V Polarity : -/+
[ 13671.203] (WW) NVIDIA(GPU-0): Mode is rejected: Only EDID-provided modes are allowed on
[ 13671.203] (WW) NVIDIA(GPU-0): Hitachi/HINT X96W D-SUB (CRT-1) (continuous frequence
[ 13671.203] (WW) NVIDIA(GPU-0): modes not allowed).
i have added the
Option “ModeValidation” “NoMaxPClkCheck” on the section device .
I added the AloowNonEdidModes , i restart the Xserver , the Monitor is blank and i restart the Machine and the Login show the resolution but after login , it is blank no signal .
Okay, i let it with 60 Hz because the reel Problem is may be somewhere , i suspect a bug in xine-lib and vdpau that can not detect the reel fps of JSC+ Sport . this work passably with half_temporal but with temporal it is flickering . trying yadiff2 the stream works good when using vlc or mplayer . but with xine nothing to do .
this Problem was already reprorted from someone on the nvnews forum .
okay; after tweaking the xorg and adding your Modeline the xrandr - g gives that :
creen 0: minimum 8 x 8, current 1366 x 768, maximum 8192 x 8192
DVI-I-0 disconnected (normal left inverted right x axis y axis)
VGA-0 connected 1366x768+0+0 (normal left inverted right x axis y axis) 430mm x 255mm
1366x768 59.8*+ 50.0
1920x1200 60.0
1920x1080 59.9
1680x1050 60.0 59.9
1440x900 59.9
1400x1050 74.8 70.0 60.0
1360x768 60.0 50.0 59.8
1280x1024 75.0 60.0
1280x960 60.0
1280x720 60.0
1152x864 75.0 75.0 70.0 60.0
1024x768 75.0 70.1 60.0
960x600 120.0
960x540 120.0
840x525 149.9 139.8 120.0 119.8
832x624 74.6
800x600 75.0 72.2 60.3 56.2
720x450 119.8
700x525 149.5 120.0
680x384 119.9 119.6
640x480 75.0 72.8 59.9
512x384 140.1 120.0
400x300 144.4
320x240 145.6 120.1
DVI-I-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 disconnected (normal left inverted right x axis y axis)
the nvidia-settings does not store the 50 Hz resolution , it gives no signal when i applied 1336 768 50Hz . i tried also with root .
Really don’t know if this will help or not, but when I was trying a 6 screen setup where the top 3 screens were different size to the bottom, and the bottom ones needed to run at 50Hz, I had the following settings in my Xorg (some options are probably not needed but I remember trying so many combinations and these finally worked to prevent the monitors own EDID interfering): -