unable to open x config file for writing

[steve reilly]

Hi all

using 12.04.05, 2 nvidia cards, 3 monitors.  last week an update borked the
one card, now only 2 monitors work.  nvidia settings didnt show the second
card, updated from 304 to 331 thinking that would help.  no dice.  went
back to 304, and using edgers ppa via some forum post i read, and now the
2nd nvidia card shows up in nvidia-settings.

trying to activate the 2nd card, im given a "new x screen required", no big
deal, its always done that. then click save to x config file, as always,
and receive the error "unable to open x config file for writing" .  tried
nvidia settings as root as well, same error message.

permissions
1312304 -rw-r--r-- 1 root root 1.3K Dec 12 20:00 /etc/X11/xorg.conf


heres the cards

steve at steve-MS-7508:~$ lspci -nnk | grep -iA3 vga
01:08.0 VGA compatible controller [0300]: NVIDIA Corporation NV44A [GeForce
6200] [10de:0221] (rev a1)
Subsystem: eVga.com. Corp. Device [3842:b399]
Kernel driver in use: nvidia
Kernel modules: nvidia_173, nvidia_331, nvidia_304, nvidia_304_updates,
nouveau, nvidiafb
02:00.0 VGA compatible controller [0300]: NVIDIA Corporation G92 [GeForce
9800 GT] [10de:0614] (rev a2)
Subsystem: XFX Pine Group Inc. Device [1682:2372]
Kernel driver in use: nvidia
Kernel modules: nvidia_173, nvidia_331, nvidia_304, nvidia_304_updates,
nouveau, nvidiafb


old cards, I know, but still work ......  anyone have any pointers for me?
 forum posts showing stuff from 2010.  nothing useful other than some HWE
update, but i dont believe that pertains to me


Steve Reilly
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