<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [hsw] KMS does not work on Dell XPS 8700" href="https://bugs.freedesktop.org/show_bug.cgi?id=73559#c13">Comment # 13</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [hsw] KMS does not work on Dell XPS 8700" href="https://bugs.freedesktop.org/show_bug.cgi?id=73559">bug 73559</a> from <a class="email" href="mailto:przanoni@gmail.com" title="Paulo Zanoni <przanoni@gmail.com>"> Paulo Zanoni</a> <pre>(In reply to <a href="show_bug.cgi?id=73559#c11">comment #11</a>) > May be this will help: > If only one monitor is connected to the PC one fb device is created: > > cat /sys/devices/pci0000:00/0000:00:02.0/graphics/fb0/name > inteldrmfb > > But if I connect two monitor: DP1, HDMI2 then two framebuffers appears: > > cat /sys/devices/platform/efifb.0/graphics/fb0/name > EFI VGA > > cat /sys/devices/pci0000:00/0000:00:02.0/graphics/fb1/name > inteldrmfb > > Can it be that this "EFI VGA" framebuffer is what makes drm_setup_crtcs() > think that a CRT is connected even if it isn't? > > Also when two monitors are connected vt01 is unreadable > the background is a pattern of black and white vertical stripes > and the text is scrambled. vt02 and higher are ok. > cat /sys/devices/platform/efifb.0/graphics/fb0/virtual_size > 640,350 > this makes grub2 use such resolution to display the boot menu (with only > one monitor grub2 uses the proper monitor resolution). Just to confirm: the bug still happens on both cases, with and without 2 monitors, right?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>