Thread: 1080p Resolution Drops Randomly to 1600x1200

well, driving me absolutely nuts.

have hp tx 2510us tablet laptop (with ati graphics). on first install of xubuntu, works great, when connected external monitor, pushes full 1920x1080 resolution.

however, seems every often, decides doesn't that, , decides new max res going 1600x1200. have spent past 2 hours trying force 1920x1080 using xrandr, , i'm @ wit's end.

drivers install , working great, , install literally few days old.

here when use xrandr in terminal (i tried follow guide add resolution, can see @ bottom).

code:

creen 0: minimum 320 x 200, current 1600 x 1200, maximum 1600 x 1600 lvds connected 1280x800+0+0 (normal left inverted right x axis y axis) 260mm x 170mm    1280x800       60.0*+    1280x768       60.0 +    1280x720       60.0 +    1024x768       60.0 +    1280x600       60.0 +    1024x600       60.0 +    800x600        60.0 +    800x480        60.0 +    720x480        60.0 +    640x480        60.0 + crt1 connected 1600x1200+0+0 (normal left inverted right x axis y axis) 531mm x 299mm    1600x1200      60.0*     1400x1050      60.0      1280x1024      75.0     60.0      1440x900       59.9      1280x960       60.0      1280x800       75.0     60.0      1152x864       75.0     60.0      1280x768       59.9      1280x720       60.0      1024x768       75.0     70.1     60.0      1280x600       60.0      1024x600       60.0      800x600        72.2     75.0     70.0     60.3     56.2      800x480        60.0      720x480        60.0      640x480        75.0     72.8     60.0   tv disconnected (normal left inverted right x axis y axis) cv disconnected (normal left inverted right x axis y axis)   1920x1080_60.00 (0xeb)  173.0mhz         h: width  1920 start 2048 end 2248 total 2576 skew    0 clock   67.2khz         v: height 1080 start 1083 end 1088 total 1120           clock   60.0hz

when use following command (crt1 monitor identifies as):

code:

xrandr --addmode crt1 1920x1080_60.00

this output:

code:

x error of failed request:  badmatch (invalid parameter attributes)   major opcode of failed request:  156 (randr)   minor opcode of failed request:  18 (rraddoutputmode)   serial number of failed request:  31   current serial number in output stream:  32

for wondering, yes, xorg.conf file came mind, contained in it:

code:

section "screen"     identifier    "default screen"     defaultdepth    24 endsection  section "module"     load    "glx" endsection

i'm not new linux, i'm kind of toying idea of using fulltime, , can imagine, incredibly frustrating, highly appreciated.

so, whatever was, don't think care anymore. out of sheer desperation, decided check out "settings editor" under "system" menu. found monitor, , manually typed in resolution of 1920x1080, , worked great!

don't know why xubuntu this, i'll keep fix in mind later.

Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Desktop Environments [xubuntu] 1080p Resolution Drops Randomly to 1600x1200

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