On 17/04/08 19:13, Brice Goglin wrote: >> Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 2048 x 2048 >> VGA connected 1680x1050+0+0 (normal left inverted right x axis y axis) 473mm x 296mm >> 1680x1050 60.0*+ >> > > Is this the exact mode supported by your monitor? Yes; it is a TFT panel, and this is its native resolution. > Can you compare the > Modeline issued in Xorg.0.log for this resolution and refresh when > booting with VGA plugged (i.e. when 1680x1050@60 works) and when booting > without and plugging VGA later (i.e. when 1680x1050@60 does not work)? Having booted without VGA, plugging it in later (so the external screen does not work), these are the lines of Xorg.0.log mentioning 1680 (with some context): (II) intel(0): Supported VESA Video Modes: ... [some modes] ... (II) intel(0): Supported Future Video Modes: ... [some other modes] ... (II) intel(0): #5: hsize: 1680 vsize 1050 refresh: 60 vid: 179 ... [some more modes] ... (II) intel(0): Supported additional Video Mode: (II) intel(0): clock: 146.2 MHz Image Size: 473 x 296 mm (II) intel(0): h_active: 1680 h_sync: 1784 h_sync_end 1960 h_blank_end 2240 h_border: 0 (II) intel(0): v_active: 1050 v_sync: 1053 v_sync_end 1059 v_blanking: 1089 v_border: 0 (II) intel(0): Ranges: V min: 56 V max: 76 Hz, H min: 30 H max: 82 kHz, PixClock max 210 MHz (II) intel(0): Monitor name: Acer AL2216W ... [lots of "not using default mode" lines, including] (II) intel(0): Not using default mode "1680x1050" (bad mode clock/interlace/doublescan) ... (II) intel(0): Printing probed modes for output VGA (II) intel(0): Modeline "1680x1050"x60.0 146.25 1680 1784 1960 2240 1050 1053 1059 1089 -hsync +vsync (65.3 kHz) ... [then during EDID for LVDS:] (II) intel(0): Not using default mode "1680x1050" (exceeds panel dimensions) When booting with VGA attached (so the external screen works), the only difference seems to be: (II) intel(0): Printing DDC gathered Modelines: (II) intel(0): Modeline "1680x1050"x0.0 146.25 1680 1784 1960 2240 1050 1053 1059 1089 -hsync +vsync (65.3 kHz) ... (II) intel(0): Modeline "1680x1050"x60.0 146.25 1680 1784 1960 2240 1050 1053 1059 1089 -hsync +vsync (65.3 kHz) So in addition to the 60Hz modeline, a 0Hz modeline appears to be produced. But, it does not appear in the list of "probed modes for output VGA"; only the 60Hz one does. I have saved a copy of the text appended to the log after plugging in VGA and running xrandr in the first case, and the corresponding section in the second case; would you like me to attach them to this bug? > Just in case, you might want to remove HorizSync and VertRefresh above. > And the "Modes" line below may be dropped too. I have deleted those lines; nothing seems to have changed as a result. Thanks, -- Will
Attachment:
signature.asc
Description: OpenPGP digital signature