On 26 September 2014 08:25, Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx> wrote: > On Wed, 24 Sep 2014, Mathias Burén <mathias.buren@xxxxxxxxx> wrote: >> I've a 1440p display with a non-sufficient/corrupt EDID. > > Just to double check, you mean the display really is broken in this > regard, *not* that the driver is unable to read the EDID? I think the EDID is broken as I got this monitor working with a specific EDID file: http://learnitwithme.com/wordpress/wp-content/uploads/2012/05/edid-shimian.bin taken from this blog post on the subject: http://electron14.com/?p=342 > > Does your monitor have other connections than HDMI? Can you try to see > if they produce a valid EDID? It may be possible to use that EDID for > HDMI using the EDID firmware mechanism. Sorry no, it only has a dual DVI input, nothing else. (no HDMI) > >> When I connect the display to the laptop via the docking station, the >> laptop detects that there is a display connected, but there are no >> modes available. I can add a mode like this: > > Have you tried without the dock to reduce the number of failure points? The laptop only has VGA and DP out unfortunately. > >> xrandr --newmode "2560x1440_60.0" 311.83 2560 2744 3024 3488 1440 1441 >> 1444 1490 -HSync +Vsync >> xrandr --addmode HDMI3 2560x1440_60.0 >> >> But I get an error when trying to use it: "xrandr: Configure crtc 1 failed". >> >> Does anyone have any tips on how to get the monitor working? > > Finally, dmesg with drm.debug=14 from boot to the problem, including the > above attempt with xrandr, might prove useful. > > BR, > Jani. > > > -- > Jani Nikula, Intel Open Source Technology Center Some logs: cmdline: BOOT_IMAGE=/vmlinuz-3.17.0-997-lowlatency root=/dev/mapper/vg0-root ro quiet threadirqs fastboot logo.nologo elevator=deadline drm.debug=14 $ xrandr xrandr: Output HDMI3 is not disconnected but has no modes Screen 0: minimum 320 x 200, current 1600 x 900, maximum 32767 x 32767 LVDS1 connected primary 1600x900+0+0 (normal left inverted right x axis y axis) 310mm x 174mm 1600x900 60.0*+ 1440x900 59.9 1360x768 59.8 60.0 1152x864 60.0 1024x768 60.0 800x600 60.3 56.2 640x480 59.9 VGA1 disconnected (normal left inverted right x axis y axis) HDMI1 disconnected (normal left inverted right x axis y axis) DP1 disconnected (normal left inverted right x axis y axis) HDMI2 disconnected (normal left inverted right x axis y axis) HDMI3 connected (normal left inverted right x axis y axis) DP2 disconnected (normal left inverted right x axis y axis) DP3 disconnected (normal left inverted right x axis y axis) VIRTUAL1 disconnected (normal left inverted right x axis y axis) dmesg | cat drm: http://pastebin.com/n8GjZNjA Is there a way I can specify the Intel driver to use another EDID? By the way, if I connect this display under Windows 7 I would normally get a BSOD or it's not detected at all. Regards Mathias _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
