Bug#400189: xserver-xorg-video-nv: garbage output (6800 GS); renders vt1-6 unusable
found 400189 1:1.2.0-3
found 400189 1:2.0.2-1
thanks
On Wednesday 09 May 2007 07:01, Brice Goglin wrote:
> Hi Andrew,
>
> Several months ago, you reported a bug to the Debian BTS regarding the
> nv driver and X server making virtual terminals unusable on a nVidia
> 6800GS board. Did you reproduce this problem recently? With the latest
> xserver-xorg-video-nv driver 2.0.2 in unstable?
>
> thanks,
> Brice
Hi Brice
Ok. I rebuilt the 2.0.2-1 source package on Etch and installed/tested on
Etch. (Let me know if you expect this to be fixed in conjunction with
other packages from unstable).
The bug is still present. (I also checked 1.2.0-3 which shipped with Etch).
Symptoms are now slightly different. vt7 shows a series of vertical line
segments of various colours (some of which alternate colours about twice a
sec). The line segment pattern often repeat at about 6-8 pixels wide.
There are 25 line segments vertically. The monitor doesn't recognise the
mode and reports 35.4kHz 78 Hz. (Normal is 1600x1200 106.2kHz 84Hz. From
the xorg.0.log I think it's picking the same mode as the nvidia driver,
1600x1200@85Hz ).
vt1-6 shows `grey' on black. (the `grey' is probably the same brightness as
normal non-highlighted console text). The character map is very wrong.
None of the characters resemble anything I can recognise. Input works, but
text is unreadable. The monitor reports 720 x 400, 31.5kHz 70Hz, which is
normal.
vt8-12 also show a similar pattern, although all the cells show the pattern
used for space on vt1-6.
Also note. If I boot with the nvidia driver in xorg.conf, then switch
xorg.conf to the nv driver, then restart kdm everything is fine, until I
restart kdm again. (At this second restart both forms of corruption
occur). I can then get a usable X by switching back to the nvidia driver.
(But this doesn't fix vt1-6).
(For the record, I tried purging the nvidia-drivers, this didn't seem to
change anything).
HTH
Thanks for your work in Debian
Andrew V.
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