cannot use projector after updating xorg and nvidia driver
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cannot use projector after updating xorg and nvidia driver
Hi all:
After installing the latest xorg and the nvidia driver, I cannot get image from the projector that I have been using for teaching my classes at the university. Here is the problem:
1)- I have a Sony Vaio laptop with NVidia GeForce Go 7600. The screen resoultion is 1280x800.
2)- Until last week, in order to get image from the projector, I would turn on the projector first, attach the cables and turn on the computer. First, I would see the system loading from the laptop, and after a while the laptop screen would go black and I would see the login screen from the projector at 1024x768 resoulution.
3)- I was perfectly happy with this even though I couldn't get simultaneous image from the computer and the projector.
4)- Now, I cannot get image from the projector and the login screen appears on the laptop screen. Apperantly, the computer unsuccessfullty tries to set up the projector (the projected blue screen flickers etc) and I see a "out of range" message.
5)- Playing with the nvidia-settings program I was able to get image from the projector in clone mode at 640x480 resoultion but this is not usable. I need 1024x768 at least.
6)- I am not too good with these things. Is there anyone who can help me with this problem? The students seemed to enjoy learning about Linux, I don't want to revert to Windows for my classroom presentations.
Below is the contents of my xorg.conf file:
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 1.0 (buildmeister@builder3) Wed Sep 12
14:29:35 PDT 2007
################################################################
#
# Autoconfigured config file for Xorg
# Created by Zorg 0.5 on Fri Sep 7 09:51:05 2007
#
# ESSENTIAL: 0004fce35896cbd1011dc25690c584101c4c3852
#
laissezfaire,
the simples way, in terminal start this command, it will open up a nvidia setting window, detect your external screen, and you have option to configure the resolution.
Yes, I played around with the nvidia-settings program. The projector is detected but the maximum resolution is 640x480, which is completely useless. I know that this particular projector definitely supports 1024x768.
laissezfaire,
in windows or linux, external display always consider as primary display and some times it brings trouble. So far I overcome this with following flow:-
1. attach monitor
2. logout (or ctrl+alt+backspace)
3. login (you won't see screen in your computer, screen will go to projector)
4. start nvidia-settings and detect both monitor
5. choose laptop monitor, enable it and choose clone mode.
6. configure screen resoultion.
I tried this and here is what happened:
1)- Once I press ctrl+alt+backspace, I get the image from the laptop, nothing from the projector.
2)- After that, I use the nvidia-config program. The projector is detected but the available resoultions are 320x240 and 640x480 only.
I am not sure about 1280x800 but I know for sure that the projector supports 1024x768.
I tried this and here is what happened:
1)- Once I press ctrl+alt+backspace, I get the image from the laptop, nothing from the projector.
2)- After that, I use the nvidia-config program. The projector is detected but the available resoultions are 320x240 and 640x480 only.
I am not sure about 1280x800 but I know for sure that the projector supports 1024x768.
when the projector is detected, press ctrl-alt-backspace, the image will transfer to projector(your project will become your primary screen,).
when the projector is detected, press ctrl-alt-backspace, the image will transfer to projector(your project will become your primary screen,).
I appreciate your help but this doesn't work. In fact, this is the problem itself. Before, when I ctrl+alt+backspace, the projector would become the primary screen. Not anymore after the updates.
The projector is detected but the maximum resolution is 640x480. I wonder if this is something to do with modelines. There is a 1280x800 modeline in the xorg.conf but no 1024x768. Any ideas?
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