https://bugs.freedesktop.org/show_bug.cgi?id=49747 --- Comment #12 from Daniel Vetter <daniel@xxxxxxxx> 2012-05-10 13:39:27 PDT --- Ok, more throughrough testing on all ports. The screens are both the same model, but different manufacturing dates (and firmware revision according to osd). DP0 seems to work in all cases, although when I switch off the screeen or unplug the cable, I need to do a vt switch to get a picture on the screen. DP1-4 seem to work with the hdmi cable for a dpms off/on cycle, but not with the dp cable. DP1-4 doesn't work at all (either hdmi or dp) when the monitor got switched off or the cable freshly plugged in while linux is running. Even xrandr --off/--auto doesn't help, only rebooting. The entire thing seems pretty flaky, even switching the input selection on the screen between hdmi and dp is enough to loose the dp signal. With this round of playing I've also seen new noise in dmesg: [ 1275.106268] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 44 [ 1275.106271] Raw EDID: [ 1275.106272] 00 ff ff ff ff ff ff 00 22 f0 f9 26 01 01 01 01 [ 1275.106274] 0b 13 01 04 a5 36 23 78 ee ce 50 a3 54 4c 99 26 [ 1275.106275] 77 0f 50 54 a5 6b 80 81 40 a9 00 a9 40 b3 00 d1 [ 1275.106276] 00 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 [ 1275.106277] 20 36 00 22 60 21 00 00 1a 77 00 00 fc 00 48 50 [ 1275.106278] 20 4c 50 32 34 37 35 77 0a 20 20 00 00 00 fd 00 [ 1275.106279] 30 55 1e 5e 15 04 11 50 d2 f8 58 f0 00 00 00 00 [ 1275.106280] ff 00 43 5a 43 39 31 31 30 30 39 34 0a 20 20 00 and similar corrupted EDIDs. xrandr always displayed the correct modelist though, afact. I'll do the radeontool dump now. -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
