Thread: 11.10 Live CD works but installed has low resolution

i have old laptop (from 2004) i'm trying install ubuntu 11.10 on. when run live cd, display works correctly (1024x768). after installing, when boot hard drive, display goes 640x480, using part of laptop screen. (nothing connected external vga port.)

not sure if relevant: unable install live cd (it hang), installed 11.10 alt cd.

there way x settings live cd using , force installed os use it?

running off live cd:

code:

$ xrand -q  screen 0: minimum 320 x 200, current 1024 x 768, maximum 2048 x 2048  vga1 unknown connection (normal left inverted right x axis y axis)     1360x768       59.8     1152x864       60.0     1024x768       60.0     800x600        60.3     640x480        59.9  lvds1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm     1024x768       60.0*+   60.0     800x600        60.3     56.2     640x480        59.9

running off hd (also ubuntu 11.10):

code:

$ xrandr -q  screen 0: minimum 320 x 200, current 640 x 480, maximum 2048 x 2048  vga1 unknown connection (normal left inverted right x axis y axis)     1360x768       59.8     1152x864       60.0     1024x768       60.0     800x600        60.3     640x480        59.9  lvds1 connected 640x480+0+0 (normal left inverted right x axis y axis) 0mm x 0mm     640x480        60.0*+   59.9

notice lvds1 missing 800x600 , 1024x768 modes supported on live cd.

more commands run off hd:

code:

$ cvt 1024 768  # 1024x768 59.92 hz (cvt 0.79m3) hsync: 47.82 khz; pclk: 63.50 mhz  modeline "1024x768_60.00"   63.50  1024 1072 1176 1328  768 771 775 798 -hsync +vsync    $ xrandr --newmode "1024x768_60.00"   63.50  1024 1072 1176 1328  768 771 775 798 -hsync +vsync    $ xrandr --addmode lvds1 1024x768_60.00  x error of failed request:  badmatch (invalid parameter attributes)    major opcode of failed request:  149 (randr)    minor opcode of failed request:  18 (rraddoutputmode)    serial number of failed request:  22    current serial number in output stream:  23    $ lspci | grep vga  00:02.0 vga compatible controller: intel corporation  82845g/gl[brookdale-g]/ge chipset integrated graphics device (rev 03)

i know ubuntu can because live cd works. suggestions?

is there xorg.conf forces low resolution? livecd configured automatically determine correct screen resolution when x starts, there no xorg.conf on livecd.

Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Hardware [ubuntu] 11.10 Live CD works but installed has low resolution

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