I think I have some more interesting things happened about the screen resolution.
Right now I have given up about the video card drive and plan to use the integrated one. I also have uninstalled all the nvidia related packages.
And I seems found the key of the question about the incorrect resolution when restart the laptop:
I accidentally read one post which talks about how to use two screens; then I notice I have ever used once on my laptop with an extend screen. And my laptop has the same symptoms with the post: after input the password at the login interface (1600x900), the screen blink once (turn dark and then turn back again as 1024 x 768 ).
thus, I change the monitors.xml by :
and change the file as:
It works for me !! After the login screen , although it will blink as usual, but it will show up with the 1600*900 screen.
However, after work for about one week, it changed today again, with the reason unknown and no change to the screen settings.
then, I edit the file by remove the Section:
because I think I only use one screen here(the LED : LVDS1).
However, after this editing, I restart the laptop, and it does not solve the problem. I check the screen setting with
I receive the following feedback:
The most funny one is the LVDS1 --> LVDS2!!!
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 32767 x 32767
LVDS2 connected 1024x768+0+0 (normal left inverted right x axis y axis) 310mm x 174mm
1600x900 60.0 +
1360x768 59.8 60.0
800x600 60.3 56.2
VGA2 disconnected (normal left inverted right x axis y axis)
What happened behind? and how to solve this problem?