LXLE12.04/ ubuntu 14.04 LTS Mode not supported (video)

ViciousIXIL · 04-11-2015, 04:32 AM

Hello,

I have been trying to install ubuntu 14.04 LTS, I could boot into the live cd but after installing the pc rebooted and displayed video mode not supported.
Its an old agp gpu and has a resolution of 1280x720 / same for the lcd.

So I tried LXLE 12.04 and that has the same problem too...

Does anyone know how to fix it?

Thankyou in advance!

RockDoctor · 04-12-2015, 06:00 AM

I use a custom config file in /etc/X11/xorg.conf.d to set the resolution of my desktop PC's monitor.

Code:

$ cat /etc/X11/xorg.conf.d/10-soyo_monitor.conf 
Section "Monitor"
  Identifier   "Monitor0"
  VendorName   "Soyo"
  ModelName    "DYLM2086"
  DisplaySize  432  270
  HorizSync    30.0 - 86.0
  VertRefresh  56.0 - 76.0
  ModeLine     "1680x1050"  147.1   1680 1784 1968 2256  1050 1051 1054 1087  -hsync +vsync
  Option      "PreferredMode" "1680x1050"
EndSection

The display size came from an actual measurement, HorizSync and VertRefresh from my monitor's specs, and the appropriate modeline from a run of gtf (in my case, with a resolution of 1680x1050 at 60Hz):

Code:

~$ gtf 1680 1050 60

  # 1680x1050 @ 60.00 Hz (GTF) hsync: 65.22 kHz; pclk: 147.14 MHz
  Modeline "1680x1050_60.00"  147.14  1680 1784 1968 2256  1050 1051 1054 1087  -HSync +Vsync