sorry, bin erst jetzt dazu gekommen ...
@SUSEDJAlex:
[u0@arch ~]$ /sbin/lspci -nnk | grep -EiA3 'vga|3d|display'
02:00.0 VGA compatible controller [0300]: NVIDIA Corporation G96 [GeForce 9500 GT] [10de:0640] (rev a1)
Kernel driver in use: nvidia
Kernel modules: nvidiafb, nouveau, nvidia
[u0@arch ~]$
dmesg, ergab nix...
xrandr:
Screen 0: minimum 8 x 8, current 1024 x 768, maximum 8192 x 8192
DVI-I-0 disconnected primary (normal left inverted right x axis y axis)
VGA-0 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1024x768 60.00*+
1600x900 59.82
1400x900 59.88
1368x768 59.88 59.85
1280x800 59.91 59.81
1280x720 59.86 59.74
1024x576 59.90 59.82
960x540 59.82 59.63
864x486 59.92 59.57
800x600 72.19 60.32 56.25
800x450 59.82
700x450 59.88
684x384 59.88 59.85
640x480 59.94
640x400 59.98 59.88
640x360 59.86 59.83
512x384 60.00
512x288 60.00 59.92
480x270 59.82 59.63
432x243 59.92 59.57
400x300 72.19
320x240 60.05
DVI-I-1 disconnected (normal left inverted right x axis y axis)
egrep:
[ 69.872] Current Operating System: Linux arch 4.15.3-2-ARCH #1 SMP PREEMPT Thu Feb 15 00:13:49 UTC 2018 x86_64
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 70.148] (WW) The directory "/usr/share/fonts/Type1/" does not exist.
[ 70.177] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
[ 74.338] (WW) Warning, couldn't open module nouveau
[ 74.339] (EE) Failed to load module "nouveau" (module does not exist, 0)
[ 74.340] (WW) Warning, couldn't open module nv
[ 74.340] (EE) Failed to load module "nv" (module does not exist, 0)
[ 74.400] (WW) Unresolved symbol: fbGetGCPrivateKey
[ 74.435] (WW) Falling back to old probe method for modesetting
[ 74.435] (WW) Falling back to old probe method for fbdev
[ 74.443] (EE) open /dev/fb0: No such file or directory
[ 75.510] (WW) NVIDIA(0): Unable to read EDID for display device CRT-1
[ 75.520] (WW) NVIDIA(0): No valid modes for "CRT-1:1280x1024"; removing.
[ 75.520] (WW) NVIDIA(0):
[ 75.520] (WW) NVIDIA(0): Unable to validate any modes; falling back to the default mode
[ 75.520] (WW) NVIDIA(0): "nvidia-auto-select".
[ 75.520] (WW) NVIDIA(0):
[ 75.551] (WW) NVIDIA(0): Unable to get display device CRT-1's EDID; cannot compute DPI
[ 75.551] (WW) NVIDIA(0): from CRT-1's EDID.
[ 75.675] (WW) NVIDIA(0): Option "PrimaryGPU" is not used
[ 87.958] (WW) NVIDIA(GPU-0): Unable to read EDID for display device CRT-1
[ 87.975] (WW) NVIDIA(GPU-0): Unable to read EDID for display device CRT-1
[ 348.924] (WW) NVIDIA(GPU-0): Unable to read EDID for display device CRT-1
also was mich wundert ist, viele auflösungen durch xrandr angezeigt werden. aber eben nicht meine, die ich brauche 1280x1024. außer updates hatte ich nichts geändert. ich hatte auch keine .conf dateien in /etc/X11 und so weiter. ich kann es nicht genau eingrenzen aber ich meine es hätte bis vor 4 wochen noch richtig gelaufen. ich nutze diesen rechner eher selten und wenn dann meist nur in der konsole. ( nutze hier selten startx ). aus dem grund kann ich nicht genau fest machen wann das problem auftrat.