How will the modeline be for a 12" laptop LCD with 1024x768?
How will the modeline be for a 12" laptop LCD with 1024x768?
also, just FYI, if you're running an nvidia card and your monitor says it doesn't support a resolution, it won't let you change to it. In order to fix this problem, go into the "Device" section of your xorg.conf and add the following line:
THIS IS NOT RECOMMENDED UNLESS YOU KNOW WHAT YOU'RE DOING. You can severely damage your monitor if you set it to an unsupported resolution.Code:Option "IgnoreEDID" "true"
argh, Ive followed the guide on how to change resolution, but its still locked at 60hz
I use 1280x960 @72hz when Im using windows and would really love to use it on ubuntu
heres my xorg.conf
Code:Section "Device" Identifier "NVIDIA Corporation NV17 [GeForce4 MX 420]" Driver "nv" BusID "PCI:1:0:0" Option "IgnoreEDID" "true" EndSection Section "Monitor" Identifier "IBM E74" Option "DPMS" # DisplaySize 270 203 # 1024x768 96dpi DisplaySize 338 254 # 1280x960 96dpi # DisplaySize 338 270 # 1280x1024 96dpi # DisplaySize 370 277 # 1400x1050 96dpi # DisplaySize 423 370 # 1600x1400 96dpi Modeline "1280x960_72.00" 124.54 1280 1368 1504 1728 960 961 964 1001 -HSync +Vsync EndSection Section "Screen" Identifier "Default Screen" Device "NVIDIA Corporation NV17 [GeForce4 MX 420]" Monitor "IBM E74" DefaultDepth 24 SubSection "Display" Depth 1 Modes "1280x1024" "1200x800" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480" EndSubSection SubSection "Display" Depth 4 Modes "1280x1024" "1200x800" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480" EndSubSection SubSection "Display" Depth 8 Modes "1280x1024" "1200x800" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480" EndSubSection SubSection "Display" Depth 15 Modes "1280x1024" "1200x800" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480" EndSubSection SubSection "Display" Depth 16 Modes "1280x1024" "1200x800" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480" EndSubSection SubSection "Display" Depth 24 Modes "1280x1024" "1280x960" "1200x800" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480" EndSubSection EndSection Section "ServerLayout" Identifier "Default Layout" Screen "Default Screen" InputDevice "Generic Keyboard" InputDevice "Configured Mouse" EndSection Section "DRI" Mode 0666 EndSection
Hi Ren. I've had low refresh rate problems too with a 19" iiyama Vision Master Pro 450. I've tried the various suggestions with little effect, so I got a bit bold:
My /etc/X11/xorg.config file contained the section
Section "Monitor"Identifier "Generic Monitor"
Option "DPMS"
HorizSync 28-64
VertRefresh 43-60
I simply stuck a 1 in front of each of the 6's (ie 28-164 and 43-160), saved, rebooted and lo!, I get refresh rates options of 60, 75 and 85hz.
Hope this is of assistance.
Last edited by pannerrammer; April 4th, 2005 at 06:12 PM.
I don't know what you did, but the proper way to force a single refresh rate is below:Originally Posted by pannerrammer
Section "Monitor"
Identifier "Generic Monitor"
Option "DPMS"
HorizSync 28-64
VertRefresh 85
That would be fore 85hz. The VertRefresh number is all you care about. You can give it a range as well. Your default range maxed out at 60hz, which is why you couldn't go higher.
Thanks for your comments, noted and appreciated.
Setting the VertRefresh to 85 gives me just the 85hz refresh rate... but none of the lower rates, which I assume I might require if I swap to another (possibly even older) monitor. Setting the VertRefresh to a range (50-85 seems about right) gives me the options of 60, 75 and 85hz
I've spent another happy hour fiddling to verify my settings and it appears that the HorizSync setting is indeed also of crucial relevance. See the table below:
HorizSync . . . . VertRefresh . . . . max resolution
30-75 . . . . . . . . . 50-85 . . . . . . . . . . 1024x768@85hz (plus 75, 60hz)
30-90 . . . . . . . . . 50-85 . . . . . . . . . . 1024x768@75hz (plus 60hz)
30-100 . . . . . . . . 50-85 . . . . . . . . . . 1280x1024@85hz (plus 75, 60hz)
So, the settings below seem to work best for me
HorizSync 30-100
VertRefresh 50-85
Thanks again.
Last edited by pannerrammer; April 5th, 2005 at 08:13 PM.
I believe it is monitor-dependent. Eg, different monitors will run at a different HorizSync for each resolution/VertRefresh. This is not generally a problem you need to worry about since keeping the default should almost always work.Originally Posted by pannerrammer
I've got a Toshiba laptop as well, (P10-S429) and after installing Ubuntu, it defaulted to 1280x800 automatically, which was nice. Fedora I had to do something similar to what you have above.Originally Posted by amerigo5
Thanks for the guide.
BTW: Will ANYONE ever actually fix this kludge?
Linux folks like to bash MS folks, but Windows seems to be able to change screen resolutions without resorting to obscure text file editing.
-Matt
I already had all the resolutions in xorg.conf, but wasn't able to choose anything higher than 800x600. After changing the defaultdepth from 24 to 16, it all worked
Section "Screen"
Identifier "Default Screen"
Device "ATI Technologies, Inc. 3D Rage IIC (AGP)"
Monitor "L1730B"
DefaultDepth 16
My monitor is LCD and my graphic card is very old.
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