Hi Matthias, Thanks for your reply. Unfortunately none of the two modelines you provided work correctly. With the first one I have 69 Hz and with the second one 75 Hz. No matter what modeline I use, I have 60 Hz at startup and I can change with xrandr to 75 Hz, which actually is only 69 Hz and this ain't confortable for the eyes at all. This is my xrandr -q output: Screen 0: minimum 320 x 240, current 1280 x 1024, maximum 1280 x 1024 default connected 1280x1024+0+0 0mm x 0mm 1280x1024 60.0 75.0* 1280x960 60.0 63.0 1152x864 75.0 70.0 65.0 60.0 1024x768 75.0 70.0 60.0 65.0 800x600 75.0 72.0 60.0 56.0 70.0 65.0 1152x768 55.0 832x624 75.0 700x525 75.0 60.0 640x512 75.0 60.0 640x480 75.0 73.0 67.0 60.0 720x400 70.0 576x432 75.0 576x384 55.0 512x384 75.0 70.0 60.0 416x312 75.0 400x300 75.0 72.0 60.0 56.0 320x240 75.0 73.0 60.0 The 75 Hz listed for 1024x768 is not 75 Hz in reality either. :( Anything else I could try? Thanks! <div class="gmail_quote">On Tue, Apr 8, 2008 at 1:56 PM, Matthias Hopf <<a href="mailto:mhopf@suse.de">mhopf@suse.de</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div class="Ih2E3d">On Apr 08, 08 13:42:12 +0300, Laszlo Kustan wrote: > This model isn't in the list of monitors, I tried to set the horizontal and > vertical refresh ranges according to the monitor's manual: > Synchronization > Horizontal 30 ~ 81 kHz > Vertical 56 ~ 75 Hz > Resolution > Optimum resolution 1280 x 1024@60 Hz > Maximum resolution 1280 x 1024@75 Hz > Maximum Pixel Clock > 140 MHz > > I tried to generate modeline with the proper settings, but the generator > gives me only bad data (pixel clock too big) > This is the vesa preset from the manual: > VESA, 1280 x 1024 79.976 75.025 135.00 +/+ > this is the modeline I tried: > Modeline "1280x1024" 135.00 1280 1296 1440 1688 1024 1025 1028 1066 +HSync > +VSync > but it does not work. </div>Where did you get this modeline from? This is neither conformant to GTF, nor to CVT. You should use the 'gtf' and 'cvt' tools to calculate modelines. E.g. you should try this one: # 1280x1024 @ 75.00 Hz (GTF) hsync: 80.17 kHz; pclk: 138.54 MHz Modeline "1280x1024" 138.54 1280 1368 1504 1728 1024 1025 1028 1069 -HSync +Vsync If that doesn't work, try a 72Hz one: # 1280x1024 @ 72.00 Hz (GTF) hsync: 76.82 kHz; pclk: 132.75 MHz Modeline "1280x1024" 132.75 1280 1368 1504 1728 1024 1025 1028 1067 -HSync +Vsync Also, if your driver is RandR capable, chances are high that your monitor section isn't used at all. Matthias -- Matthias Hopf <<a href="mailto:mhopf@suse.de">mhopf@suse.de</a>> __ __ __ Maxfeldstr. 5 / 90409 Nuernberg (_ | | (_ |__ <a href="mailto:mat@mshopf.de">mat@mshopf.de</a> Phone +49-911-74053-715 __) |_| __) |__ R & D <a href="http://www.mshopf.de" target="_blank">www.mshopf.de</a> _______________________________________________ xorg mailing list <a href="mailto:xorg@lists.freedesktop.org">xorg@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/xorg" target="_blank">http://lists.freedesktop.org/mailman/listinfo/xorg</a> </blockquote></div>