[Nouveau] [Bug 69083] [NV84] using DVI to VGA adapter for CRT and specifying supported "PreferredMode" >EDID preferred mode, screen output is compressed into small fraction of top scan lines

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=69083

Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|using DVI to VGA adapter    |[NV84] using DVI to VGA
                   |for CRT and specifying      |adapter for CRT and
                   |supported "PreferredMode"   |specifying supported
                   |>EDID preferred mode,       |"PreferredMode" >EDID
                   |screen output is compressed |preferred mode, screen
                   |into small fraction of top  |output is compressed into
                   |scan lines                  |small fraction of top scan
                   |                            |lines

--- Comment #1 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Are you sure that the display is actually compressed into the top few
scanlines? e.g. do you see the mouse cursor in there when you move it around?
Does it show your normal background? Or is it just garbage that happens to not
have 0's for the top few scanlines' worth of data?

I've never used PreferredMode before. If you remove it, I assume everything
works fine? What happens if you run something like

xrandr --output DVI-I-1 --mode 1920x1440

does that fix things for you? Can you supply the output of

xrandr --verbose

after X has started? (You can e.g. ssh in and run DISPLAY=:0 xrandr --verbose)

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