<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED NOTABUG - 4k monitor edid rejected: EDID timing clock 297.00 exceeds claimed max 115MHz, fixing" href="https://bugs.freedesktop.org/show_bug.cgi?id=82102#c7">Comment # 7</a> on <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED NOTABUG - 4k monitor edid rejected: EDID timing clock 297.00 exceeds claimed max 115MHz, fixing" href="https://bugs.freedesktop.org/show_bug.cgi?id=82102">bug 82102</a> from <a class="email" href="mailto:wolfgang.rupprecht@gmail.com" title="Wolfgang Rupprecht <wolfgang.rupprecht@gmail.com>"> Wolfgang Rupprecht</a> <pre>(In reply to <a href="show_bug.cgi?id=82102#c6">comment #6</a>) > You GPU does not support 4k over HDMI. I assume this was meant for someone else. My GPU is the Radeon 6450 (card: Sapphire Radeon HD 6450 1 GB DDR3 HDMI/DVI-D/VGA PCI-Express Graphics Card 100322L) The specs at AMD claim this GPU does HDMI 1.4a 2 lanes of 340 Mhz dot clock each for a total of 640 Mhz. Even if only one lane is populated on this card, that should still be 340 Mhz. The modeline only asks for 297 Mhz. As for the framebuffer size, xrandr claims this card does a 16k x 16k virtual buffer. That too is enough for the 3840 x 2160 screen. In fact the card works just fine at 15hz (as evidenced below). In fact I'm typing this bug report at <a href="mailto:3840x2160@15.00">3840x2160@15.00</a>. [wolfgang@capsicum ~]$ xrandr Screen 0: minimum 320 x 200, current 3840 x 2160, maximum 16384 x 16384 HDMI-0 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 854mm x 481mm 3840x2160_15.00 14.99* 1920x1080 60.00 50.00 59.94 24.00 23.98 1920x1080i 60.00 50.00 59.94 1440x900 59.89 1280x960 60.00 1280x720 60.00 50.00 59.94 1440x576i 50.00 1024x768 75.08 70.07 60.00 1440x480i 60.00 59.94 800x600 72.19 75.00 60.32 720x576 50.00 720x480 60.00 59.94 640x480 75.00 72.81 60.00 59.94 720x400 70.08 DVI-0 disconnected (normal left inverted right x axis y axis) VGA-0 disconnected (normal left inverted right x axis y axis) [wolfgang@capsicum ~]$ If there is some document describing how to compile up the current Xorg I'd be willing to give it a shot. The world seems to have gotten more complicated since the days of old when a "make world; make install" sufficed.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>