dual screens are overlapping upon resolution change
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| ratpoison (Ubuntu) |
New
|
Undecided
|
Unassigned | ||
Bug Description
There is a laptop with an LVDS-1 and a VGA-1 (for the external display).
The first problem is that the native resolution of the external LCD (VGA-1) is 1680x1050, but that's not the default. The default resolution is much lower than 1680x1050. I'm not sure if that's a xorg bug or a ratpoison bug.
Anyway, I used xandr to correct it using these steps:
$ cvt 1680 1050
$ xrandr --newmode...
$ xrandr --addmode...
$ xrandr --output...
The result: the resolution increases noticeably, but whenever the right frame is in focus about 1/3rd of the image is mirrored on the left frame. And when the left frame is in focus, part of the image is mirrored on the right frame. This only happens when the resolution is changed.
This is a serious show-stopper issue. It's hard to tolerate a low resolution, and the overlapping after increasing the resolution is also intolerable.
This could be the same bug, but it's vaguely written:
