Hi all
I'm fairly new to Linux and am installing Debian as a desktop. However the system booting stops at black screen "input signal out of range". pressing 'crtl-alt- +' takes you to normal GUI desktop. I haven't been able to find the solution on the net. Is the system not loading my AGP driver properly or is it an X-org problem? If I try to change resolution from the desktop it reverts to black screen "input signal out of range again.
the section of my /etc/X11/xorg.conf file reads
Section "Device" Identifier "nVidia Corporation NV17 [GeForce4 MX 420]" Driver "nv" BusID "PCI:1:0:0" EndSection
Section "Monitor" Identifier "ADI GD-790T" Option "DPMS" EndSection
Section "Screen" Identifier "Default Screen" Device "nVidia Corporation NV17 [GeForce4 MX 420]" Monitor "ADI GD-790T" DefaultDepth 24 SubSection "Display" Depth 1 Modes "1600x1200" "1280x1024" "1024x768" "800x600" "720x450" "720x400" "640x640" "640x480" EndSubSection SubSection "Display" Depth 4 Modes "1600x1200" "1280x1024" "1024x768" "800x600" "720x450" "720x400" "640x640" "640x480" EndSubSection SubSection "Display" Depth 8 Modes "1600x1200" "1280x1024" "1024x768" "800x600" "720x450" "720x400" "640x640" "640x480" EndSubSection SubSection "Display" Depth 15 Modes "1600x1200" "1280x1024" "1024x768" "800x600" "720x450" "720x400" "640x640" "640x480" EndSubSection SubSection "Display" Depth 16 Modes "1600x1200" "1280x1024" "1024x768" "800x600" "720x450" "720x400" "640x640" "640x480" EndSubSection SubSection "Display" Depth 24 Modes "1600x1200" "1280x1024" "1024x768" "800x600" "720x450" "720x400" "640x640" "640x480" EndSubSection EndSection
Section "ServerLayout" Identifier "Default Layout" Screen "Default Screen" InputDevice "Generic Keyboard" InputDevice "Configured Mouse" EndSection
Section "DRI" Mode 0666 EndSection
Best wishes
Paul Adams
PS I came along to the last ALUG meeting at the Reindeer. Paul, 40ish, brown hair ponytail, bit overweight, drinking diet Coke, didn't say much!!
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I am assuming you really do have an ADI GD-790 monitor ?
When you press Crtl-alt-+ I am assuming you get a desktop at 640x480, repeated pressings of ctrl alt + (or -) will take you up (and down) the modeline for your default colour depth. When you do this is 6480x480 the only resolution that works ?
I would say that your sync and refresh is going out of the range your monitor can cope with at the first resolution in your mode line (which is the one X will start as)
These should have been auto detected but depending on how you set up X maybe that didn't happen. A quick google suggests that the following settings might work for your screen.
Find "Section "Monitor"" and add these before the next "EndSection" HorizSync 30.0 - 110.0 VertRefresh 50.0 - 160.0
(noting the case)
Either that or there is something going horribly wrong with the nv driver.
Caveat- Manually specifying the wrong sync and refresh rates can actually damage CRT screens. *most* modern CRT's will in every case do what yours is doing and show a message rather than obey incorrect figures, others won't. So if you have the user manual for your screen to hand then I would double check the settings I have given you before applying them (you should find them in the specifications section) If your monitor makes any squealing or ticking noises or shows a dim or folded over picture then turn it off immediately.
On Fri, Mar 7, 2008 at 9:02 AM, Wayne Stallwood ALUGlist@digimatic.co.uk wrote:
I am assuming you really do have an ADI GD-790 monitor ?
Either that or there is something going horribly wrong with the nv driver.
Caveat- Manually specifying the wrong sync and refresh rates can actually damage CRT screens. *most* modern CRT's will in every case do what yours is doing and show a message rather than obey incorrect figures, others won't. So if you have the user manual for your screen to hand then I would double check the settings I have given you before applying them (you should find them in the specifications section) If your monitor makes any squealing or ticking noises or shows a dim or folded over picture then turn it off immediately.
I thought modern X could read the monitor's EDID which should have at least one detailed video timing for the preferred mode. This is particularly important for LCD screens which expect lower pixel clocks than the traditional CRT timings for the same modes.
Tim.
On Fri, 2008-03-07 at 10:05 +0000, Tim Green wrote:
I thought modern X could read the monitor's EDID which should have at least one detailed video timing for the preferred mode. This is particularly important for LCD screens which expect lower pixel clocks than the traditional CRT timings for the same modes.
Yes that is the default and expected behaviour. But given that something is sending his monitor out of range I would say either the card is spewing rubbish at alternate resolutions or this mechanism has failed
I think it actually relies on a lookup table somewhere which could of course be wrong :)
-
paul -
Tim Green -
Wayne Stallwood