On 27 September 2014 16:39, Mathias Burén <mathias.buren@xxxxxxxxx> wrote: > 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 Here's the attempt to use the EDID file via the sysfs interface: http://pastebin.com/3brap4wB _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
