Inconsistent resolution before and after linux Login

The resolution is inconsistent before and after linux Login-general Linux technology-Linux technology and application information. The following is a detailed description. Problem description: The resolution is inconsistent before and after linux Login. The resolution is high before login and is normal after login. Two machines with the same graphics card have the same problem, but the solution is different.

Solution: Modify the/etc/x11/xorg. conf file.

1. List the xorg. conf files of machine 1:

.......
Section "Monitor"
### Comment all HorizSync and VertSync values to use DDC:
Identifier "Monitor0"
ModelName "Monitor 1024x768"
### Comment all HorizSync and VertSync values to use DDC:
HorizSync 31.5-57.0
VertRefresh 50.0-70.0
Option "dpms"
EndSection
Section "Device"
Identifier "Videocard0"
Driver "i810"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Modes "1024x768"
Viewport 0 0
Depth 24
EndSubSection
EndSection

Because the red part is missing in this file, the above problem can be solved by adding this sentence to the file.

2. List the xorg. conf files of Machine 2:

Section "Monitor"
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
Identifier "Monitor0"
ModelName "Monitor 1024x768"
### Comment all HorizSync and VertSync values to use DDC:
HorizSync 31.5-57.0
VertRefresh 50.0-70.0
# ModeLine "1024x768_75.00" 81.8 1024 1080 1192 1360 768 769-hsync + vsync
Option "dpms"
EndSection
Section "Device"
Identifier "Videocard0"
Driver "i810"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Modes "1024x768"
Viewport 0 0
Depth 24
EndSubSection
EndSection

Because the red part is added to this file, the above problem can be solved by commenting out this sentence in the file.