I guess the problem is due to lack of dithering support in the driver -
unlike nv driver which has an option to enable dithering.
I looked into documentation of `geeqie`, since it was also exhibiting the
banding issue.
Per /usr/share/doc/geeqie/html/GuideOptionsHidden.html
dither_quality: Set
Confirming, as I have the same exact chipset as the original poster
(nm2360 / MagicGraph 256ZX), on a Dell Latitude CPt/CPx
Running lubuntu-desktop on Ubuntu 11.04 (natty)
xserver-xorg-video-neomagic: 1:1.2.5-1ubuntu3
# lspci | grep VGA
01:00.0 VGA compatible controller: Neomagic Corporation
aeromojito,
sorry if this is a bit late, but, could you try setting:
Option OverlayMem100
or if you want more than full dvd resolution (720x576) maybe a bit higher
OverlayMem, provided you are able (and willing) to go with modest resolution
and/or depth, to make more video ram
also in 16bpp:
`eog` (eye of gnome) displays gradients just fine
`geeqie`, `gliv` and `pqiv` all have color banding
very strange..
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Public bug reported:
Binary package hint: xserver-xorg-video-neomagic
Running lubuntu-desktop on Ubuntu 11.04 (natty)
xserver-xorg-video-neomagic: 1:1.2.5-1ubuntu3
# lspci | grep VGA
01:00.0 VGA compatible controller: Neomagic Corporation NM2360 [MagicMedia
256ZX]
# xrandr -q
xrandr: Failed
** Attachment added: Xorg.0.log
https://bugs.launchpad.net/bugs/780074/+attachment/2121526/+files/Xorg.0.log
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https://bugs.launchpad.net/bugs/780074
Title:
On a side note about exacerbation of the issue when DefaultDepth is set to 24:
Not only does gradient color banding occur for `lxdm` (which was okay in 16bit
depth), as `feh` and `gimp` (which were also okay in 16bit depth) exhibit the
banding issue as well. So, I believe that confirms that it
`nitrogen` exhibits the same gradient color banding issue in 16 bit
depth.
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https://bugs.launchpad.net/bugs/780074
Title:
[neomagic] Gradient color
*** This bug is a duplicate of bug 196277 ***
https://bugs.launchpad.net/bugs/196277
if you have a dell latitude laptop, change your Xkbmodel to latitude
in xorg.conf, or use evdev instead
per this:
Debian Bug report logs - #381952
please autodetect Dell Latitude keyboards
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