I'm not quite sure if my bug is the same as reported here, but I let
others decide.
To begin with, when I start my computer, the monitor goes off soon after
the grub menu and comes back on just before the login screen. This
happens with the live CD too, and prevents me from checking the
installation CD for defects (the checking seems to happen, but I'm not
able to see the result). The problem was present already on my earlier
Gutsy installation (started perhaps two weeks ago), but I thought it
might be because of the experiments I had made with the Nvidia driver
(from the Nvidia web site). The monitor doesn't cause the problem,
because I tried with another one and got same behaviour.
This is a step by step description of my observations after the
installation was finished:
Login screen refresh rate was at 60 Hz and the screen was vertically
stretched (not exceeding the screen edges).
Desktop resolution was at 1280 x 768, which means that the desktop was
vertically stretched (my monitor being a regular 21" CRT). Refresh rate
was 60 Hz.
Graphics card was detected right ("NVIDIA Geforce 8800 Series").
The monitor was not detected. The description was "Custom 1".
I changed monitor model to "Sony GDM-f500/f500t9", which allowed me to
select a resolution of 1400 x 1050 and a refresh rate of 85 Hz in
"Screen and graphics preferences". A message "All users must log out for
changes to take effect" (my translation from Finnish) appeared. I closed
the message window to take notes. When I re-opened it, all resolution
options above 1280 x 1024 had disappeared. The only available refresh
rate was 60 Hz. The selection I made for the monitor ("Sony
GDM-f500/f500t9") was still there. I selected the resolution 1280 x 960,
which worked at 60Hz refresh rate.
Next I logged out. After logging back in and opening "Screen and
graphics preferences", nothing had changed, except that 85 Hz was added
as a second option for refresh rate (so now there were 60 Hz and 85 Hz).
I selected 85 Hz and it worked. Still no resolutions available above
1280 x 1024.
I decided to reboot and see what that would do. The desktop resolution
changed from 1280 x 960 to 1280 x 768 and the refresh rate to 60 Hz (the
option for 85 Hz disappeared) without my intervention (other than
rebooting). The long list of available resolutions came back though, and
I tried to select 1400 x 1050. The resolution changed to something else
than that. I would guess 1280 x 1024, because ther were black margins on
the right and left edges of the screen, but the desktop wasn't malformed
(the "Screen and graphics preferences" and "Screen resolution" kept
showing 1400 x 1050). Now the refresh rate option of 85 Hz was back
again, and I selected it to see what would happen. It worked and the
screen resolution went to 1400 x 1050, which it was supposed to be.
Next I rebooted again to see if things would be stable now.
Unfortunately not. The resolution was back in 1280 x 768 (vertically
stretched) and refresh rate at 60 Hz (the only option). Here I thought
that it's time to make a bug report :-) Well, I had to log out once more
to change the system language to English to find the right names for the
settings windows. When I logged back in, the resolution was 1920 x 1200
and refresh rate 73 Hz (60 Hz being the only other option). My monitor
is not a wide screen model. I made one more try for 1600 x 1200 @ 85Hz,
which is one of the settings on the modelines, but that didn't work. And
this is where I am now.
I didn't have these problems with the nv driver on my Tribe 5
installation.
My monitor: Sony GDM-F500 21" CRT
30 - 121kHz, 48 - 160Hz
1880 x 1440 @ 80Hz
My graphics card: Leadtek GeForce 8800 GTS 320Mb
** Attachment added: "xorg.conf"
http://launchpadlibrarian.net/9833237/xorg.conf
--
Screens & Graphics not setting correct resolution
https://bugs.launchpad.net/bugs/139027
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