https://bugs.freedesktop.org/show_bug.cgi?id=27708
Summary: [KMS] Repeated EDID errors despite everything working Product: DRI Version: XOrg CVS Platform: x86-64 (AMD64) OS/Version: Linux (All) Status: NEW Severity: minor Priority: medium Component: DRM/Radeon AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: curaga@operamail.com
Created an attachment (id=35119) --> (https://bugs.freedesktop.org/attachment.cgi?id=35119) dmesg
I tried KMS for the first time on a Radeon HD4350 today. UMS works fine, and Xorg doesn't complain anything about my screen's edid.
Everything works fine in KMS mode, I get full 1600x900 framebuffer, fast VT switching etc.
KMS however fills my dmesg with EDID and composite sync errors:
"composite sync not supported"
"[drm:edid_is_valid] *ERROR* EDID checksum is invalid, remainder is 170 [drm:edid_is_valid] *ERROR* Raw EDID: <3>00 ff ff ff ff ff ff 00 04 72 9d 00 fb 28 20 90 .........r...( . <3>02 13 01 03 68 2c 19 78 2e ee 95 a3 54 4c 43 26 ....h,.x....TLC& <3>0f 50 54 bf ee 80 a9 c0 71 4f 81 c0 81 00 01 01 .PT.....qO...... <3>01 01 01 01 01 01 31 2e 40 00 62 84 22 30 58 a8 ......1.@.b."0X. <3>35 00 bb f9 10 00 00 04 00 00 00 fd 00 37 4b 1e 5............7K. <3>50 10 00 0a 20 20 20 20 20 20 00 00 00 fc 00 58 P... .....X <3>32 30 33 48 0a 20 20 20 20 20 20 20 00 00 00 ff 203H. .... <3>00 4c 46 50 30 42 30 30 39 33 39 30 30 20 00 ce .LFP0B0093900 ..
radeon 0000:01:00.0: VGA-1: EDID invalid."
64-bit linux 2.6.33.1 Xorg 1.7.6, radeon 6.13