[Openchrome-users] HP 2133 1.6 2GB/120 WLAN BT 3-CELL 8.9#VHB

[Jon Nettleton]

On Fri, Dec 26, 2008 at 6:39 AM, Miguel Alvarez Blanco y Aurora
Costales Castro <miguelyoyi at telecable.es> wrote:
> Hello all again!
>
> I have found some order within the weird behavior. With the attached
> xorg.conf, gdm starts in mode 1280x768 (see below for the behavior of
> this mode), gnome goes up, and it switches to the mode that was last
> selected within gnome, each having its own behavior. The mode list in
> gnome's resolution change widget is, in this order:
>
> 800x600 720x576 640x480 1280x768
>
> Now, the weird things. In the table below, the Resolution column is the
> resolution selected with gnome (in gdm it is always 1280x768). For each
> of them, the VirtualDesk was determined by doing a Screen capture and
> looking at the size of the image. The xvidtune column is the number
> reported by this program, that is, X's ModeLine. The column panArea
> really applies only to the 1280x768 resolution, since it is the only one
> in which panning is available, because the VirtualDesk is not equal to
> the xvidtune in that case; note, however, that the panArea seems to be
> higher than the videomode; I determined this panarea by enlarging a
> window as much as I could within the panArea, taking a Screen capture of
> that window, and looking at the size of the image. Finally, viewArea is
> determined by resizing a window so that it fits the area that I can see
> in the panel, taking a screen capture of that window, and looking at the
> image size. Here are the results:
>
> Resolution  VirtualDesk  xvidtune  panArea   viewArea
> 1280x768    1280x768     1024x576  1024x640  768x450
> 800x600     800x600      800x600   no pan    600x466
> 720x576     720x576      720x576   no pan    541x451
> 640x480     640x480      640x480   no pan    484x374
>
> It is really wierd. It seems that the panel shows always a percentage of
> the xvidtune values, about 75% of the horizontal value and about 78% of
> the vertical value, plus or minus less than 1%. Oddly enough, the
> 1024x576 xvidtune maximum resolution is exactly 75% of the detected
> Native Panel Resolution, 1366x768.
>
> Trying to force 1024x576 as the highest mode, instead of 1280x768, both
> Resolution, VirtualDesk, and xvidtune get 1024x576, there is no panning,
> and the viewArea is about 767x449 pixels, about the same as with the
> 1280x768 Resolution, other things going the same (except that 800x600 is
> not available because the VirtualDesk is set to 1024x576 and then the
> vertical 600 does not fit). Trying to force 800x600, or 720x576, or
> 640x480 as the one and only mode, I get Resolution, VirtualDesk, and
> xvidtune as requested, but a viewArea which is more or less the one in
> the table above, and no panning. I have no explanation for this! I am
> attaching the xorg.conf for the table values, and the bzip2 Xorg.0.log
> file (hope they fit the limits of the list rules).
>

Hi Miguel,

I think the problem you are seeing is because you are trying to force
too much incorrect information to the display panel.  According the
Logs you provide, the bios is providing the information that the
native panel resolution is 1366x768.  I have verified that some
HP2133's do have panels at that resolution.  You are then providing
resolutions and display sizes that do not match that resolution which
is why we are falling back to a lower resolution.  Please comment out
all resolution and displaysize information from your xorg.conf and
allow the driver to automatically set things up.  You should get a
properly setup 1366x768 display by default.

Jon