Re: [PATCH] drm/radeon: Fix Asus M2A-VM HDMI EDID error flooding problem

Here are the kernel logs with and without the patch for better visualisation of the changes:

1. dmesg after applying the patch:

[ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Linux version 3.0-3-generic (root@Mark-Aurel) (gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu4) ) #5 SMP Wed Jul 6 01:54:25 CEST 2011 (Ubuntu 3.0-3.5-generic 3.0.0-rc5) ... [ 6.980082] [drm] Initialized drm 1.1.0 20060810 [ 8.353140] [drm] radeon defaulting to kernel modesetting. [ 8.353147] [drm] radeon kernel modesetting enabled. [ 8.423983] radeon 0000:01:05.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18 [ 8.424296] [drm] initializing kernel modesetting (RS690 0x1002:0x791E 0x1043:0x826D). [ 8.424323] [drm] register mmio base: 0xFDCF0000 [ 8.424326] [drm] register mmio size: 65536 [ 8.424667] ATOM BIOS: ATI [ 8.424697] radeon 0000:01:05.0: VRAM: 128M 0x0000000038000000 - 0x000000003FFFFFFF (128M used) [ 8.424702] radeon 0000:01:05.0: GTT: 512M 0x0000000040000000 - 0x000000005FFFFFFF [ 8.424722] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). [ 8.424724] [drm] Driver supports precise vblank timestamp query. [ 8.424738] [drm] radeon: irq initialized. [ 8.424833] [drm] Detected VRAM RAM=128M, BAR=128M [ 8.424839] [drm] RAM width 128bits DDR [ 8.429082] [TTM] Zone kernel: Available graphics memory: 412360 kiB. [ 8.429087] [TTM] Initializing pool allocator. [ 8.429119] [drm] radeon: 128M of VRAM memory ready [ 8.429121] [drm] radeon: 512M of GTT memory ready. [ 8.429149] [drm] GART: num cpu pages 131072, num gpu pages 131072 [ 8.433650] [drm] radeon: 1 quad pipes, 1 z pipes initialized. [ 8.450393] radeon 0000:01:05.0: WB enabled [ 8.452791] [drm] Loading RS690/RS740 Microcode [ 9.139696] [drm] radeon: ring at 0x0000000040001000 [ 9.139718] [drm] ring test succeeded in 1 usecs [ 9.139884] [drm] radeon: ib pool ready. [ 9.139978] [drm] ib test succeeded in 0 usecs [ 9.140324] [drm] Radeon Display Connectors [ 9.140327] [drm] Connector 0: [ 9.140329] [drm] VGA [ 9.140332] [drm] DDC: 0x7e50 0x7e40 0x7e54 0x7e44 0x7e58 0x7e48 0x7e5c 0x7e4c [ 9.140334] [drm] Encoders: [ 9.140336] [drm] CRT1: INTERNAL_KLDSCP_DAC1 [ 9.140338] [drm] Connector 1: [ 9.140340] [drm] S-video [ 9.140341] [drm] Encoders: [ 9.140343] [drm] TV1: INTERNAL_KLDSCP_DAC1 [ 9.140344] [drm] Connector 2: [ 9.140346] [drm] HDMI-A [ 9.140347] [drm] HPD2 [ 9.140350] [drm] DDC: 0x7e40 0x7e60 0x7e44 0x7e64 0x7e48 0x7e68 0x7e4c 0x7e6c [ 9.140352] [drm] Encoders: [ 9.140354] [drm] DFP2: INTERNAL_DDI [ 9.140356] [drm] Connector 3: [ 9.140357] [drm] DVI-D [ 9.140360] [drm] DDC: 0x7e40 0x7e50 0x7e44 0x7e54 0x7e48 0x7e58 0x7e4c 0x7e5c [ 9.140362] [drm] Encoders: [ 9.140364] [drm] DFP3: INTERNAL_LVTM1 [ 9.200505] [drm] Radeon display connector VGA-1: No monitor connected or invalid EDID [ 9.536899] Raw EDID: [ 9.536907] <3>00 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 ................ [ 9.536911] <3>00 00 00 00 3f 00 00 00 00 00 00 00 00 00 00 00 ....?........... [ 9.536914] <3>00 00 03 00 00 00 00 00 00 00 00 00 00 7f 00 00 ................ [ 9.536917] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 9.536920] <3>00 00 00 00 00 00 00 3f 00 00 00 00 00 00 00 00 .......?........ [ 9.536922] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 9.536925] <3>ff 00 00 00 00 00 00 00 00 00 00 00 00 0f 1f 00 ................ [ 9.536928] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 9.536930] [ 9.865805] Raw EDID: [ 9.865813] <3>00 00 00 00 01 00 00 00 00 00 00 00 00 00 ff 00 ................ [ 9.865816] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 1f 00 00 ................ [ 9.865819] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 9.865822] <3>00 00 00 00 00 00 00 07 00 00 00 00 00 00 00 00 ................ [ 9.865825] <3>00 00 03 00 00 00 00 00 00 00 ff 00 00 00 00 00 ................ [ 9.865828] <3>00 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 9.865831] <3>00 00 1f 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 9.865833] <3>00 00 00 00 00 00 00 00 00 00 07 00 00 00 00 00 ................ [ 9.865836] [ 10.211426] Raw EDID: [ 10.211436] <3>00 00 00 00 00 00 00 03 00 00 00 ff 00 00 00 00 ................ [ 10.211439] <3>00 00 00 00 00 00 00 03 00 00 00 00 00 00 00 00 ................ [ 10.211442] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 10.211445] <3>7f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 10.211448] <3>00 00 00 00 00 00 3f 00 00 00 00 ff 00 00 00 00 ......?......... [ 10.211451] <3>00 00 00 00 00 00 00 00 00 00 00 00 3f 00 00 00 ............?... [ 10.211454] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 10.211457] <3>00 3f 00 00 00 00 00 00 00 00 00 00 00 00 ff 00 .?.............. [ 10.211459] [ 10.407265] Raw EDID: [ 10.407274] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 10.407277] <3>00 00 00 ff 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 10.407280] <3>00 00 00 ff 00 7f 00 00 00 00 00 00 00 00 00 00 ................ [ 10.407283] <3>00 00 00 00 00 00 ff 00 00 00 00 00 00 00 00 00 ................ [ 10.407286] <3>00 00 00 00 00 00 00 00 00 00 00 7f 00 00 00 00 ................ [ 10.407289] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 10.407309] <3>00 0f 00 00 00 00 00 00 00 00 01 00 00 00 00 00 ................ [ 10.407312] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 3f 00 00 .............?.. [ 10.407314] [ 10.407320] radeon 0000:01:05.0: HDMI-A-1: EDID block 0 invalid. [ 10.407324] [drm] Radeon display connector HDMI-A-1: No monitor connected or invalid EDID [ 10.601868] [drm] Radeon display connector DVI-D-1: Found valid EDID [ 11.200051] [drm] fb mappable at 0xF0040000 [ 11.200056] [drm] vram apper at 0xF0000000 [ 11.200059] [drm] size 5242880 [ 11.200061] [drm] fb depth is 24 [ 11.200062] [drm] pitch is 5120 [ 11.201974] drm: registered panic notifier [ 11.202110] [drm] Initialized radeon 2.10.0 20080528 for 0000:01:05.0 on minor 0

From: Thomas Reim rdratlos@yahoo.co.uk

Some integrated ATI Radeon chipset implementations
with add-on HDMI card (e. g. Asus M2A-VM HDMI) indicate the availability
of a DDC even when the add-on card is not plugged in or HDMI is disabled
in BIOS setup. In this case, drm_get_edid() and drm_edid_block_valid()
periodically dump data and kernel errors into system log files and onto
terminals. For these chipsets DDC probing is extended by a check for a
correct EDID header. Only in case a valid EDID header is also found, the
(HDMI) connector will be used by the Radeon driver. This prevents the
kernel driver from useless flooding of logs and terminal sessions with
EDID dumps and error messages.
This patch adds a flag 'requires_extended_probe' to the radeon_connector
structure. In function radeon_connector_needs_extended_probe() this flag
can be set on a chipset family/vendor/connector type specific basis.
In addition, function drm_edid_header_is_valid() has been added for EDID
header check and function radeon_ddc_probe() has been adapted to perform
extended DDC probing if required by the connector's flag.

Tested for kernel 2.35, 2.38 and 3.0 on Asus M2A-VM HDMI board

Signed-off-by: Thomas Reim rdratlos@yahoo.co.uk

2. dmesg without patch:

[ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Linux version 3.0.0-rc3-radeonfix (root@Mark-Aurel) (gcc version 4.4.5 (Ubuntu/Linaro 4.4.4-14ubuntu5) ) #1 SMP Tue Jun 21 10:29:44 CEST 2011 [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-3.0.0-rc3-radeonfix root=UUID=0cc18590-dcbb-43ba-867a-0a3b3b6a9b56 ro quiet splash vt.handoff=7 . . . [ 13.590728] [drm] Initialized drm 1.1.0 20060810 [ 14.923157] [drm] radeon defaulting to kernel modesetting. [ 14.923163] [drm] radeon kernel modesetting enabled. [ 14.931891] radeon 0000:01:05.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18 [ 14.932445] [drm] initializing kernel modesetting (RS690 0x1002:0x791E). [ 14.932475] [drm] register mmio base: 0xFDCF0000 [ 14.932478] [drm] register mmio size: 65536 [ 14.932817] ATOM BIOS: ATI [ 14.932845] radeon 0000:01:05.0: VRAM: 128M 0x0000000038000000 - 0x000000003FFFFFFF (128M used) [ 14.932849] radeon 0000:01:05.0: GTT: 512M 0x0000000040000000 - 0x000000005FFFFFFF [ 14.932884] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). [ 14.932887] [drm] Driver supports precise vblank timestamp query. [ 14.932902] [drm] radeon: irq initialized. [ 14.932994] [drm] Detected VRAM RAM=128M, BAR=128M [ 14.932998] [drm] RAM width 128bits DDR [ 14.933165] [TTM] Zone kernel: Available graphics memory: 445354 kiB. [ 14.933168] [TTM] Initializing pool allocator. [ 14.933200] [drm] radeon: 128M of VRAM memory ready [ 14.933203] [drm] radeon: 512M of GTT memory ready. [ 14.933284] [drm] GART: num cpu pages 131072, num gpu pages 131072 [ 14.938106] [drm] radeon: 1 quad pipes, 1 z pipes initialized. [ 14.981418] radeon 0000:01:05.0: WB enabled [ 14.982168] [drm] Loading RS690/RS740 Microcode [ 15.030767] [drm] radeon: ring at 0x0000000040001000 [ 15.030789] [drm] ring test succeeded in 1 usecs [ 15.030950] [drm] radeon: ib pool ready. [ 15.031038] [drm] ib test succeeded in 0 usecs [ 15.031047] failed to evaluate ATIF got AE_BAD_PARAMETER [ 15.031332] [drm] Radeon Display Connectors [ 15.031335] [drm] Connector 0: [ 15.031337] [drm] VGA [ 15.031340] [drm] DDC: 0x7e50 0x7e40 0x7e54 0x7e44 0x7e58 0x7e48 0x7e5c 0x7e4c [ 15.031342] [drm] Encoders: [ 15.031344] [drm] CRT1: INTERNAL_KLDSCP_DAC1 [ 15.031346] [drm] Connector 1: [ 15.031348] [drm] S-video [ 15.031349] [drm] Encoders: [ 15.031351] [drm] TV1: INTERNAL_KLDSCP_DAC1 [ 15.031353] [drm] Connector 2: [ 15.031355] [drm] HDMI-A [ 15.031356] [drm] HPD2 [ 15.031359] [drm] DDC: 0x7e40 0x7e60 0x7e44 0x7e64 0x7e48 0x7e68 0x7e4c 0x7e6c [ 15.031361] [drm] Encoders: [ 15.031363] [drm] DFP2: INTERNAL_DDI [ 15.031365] [drm] Connector 3: [ 15.031367] [drm] DVI-D [ 15.031369] [drm] DDC: 0x7e40 0x7e50 0x7e44 0x7e54 0x7e48 0x7e58 0x7e4c 0x7e5c [ 15.031371] [drm] Encoders: [ 15.031373] [drm] DFP3: INTERNAL_LVTM1 [ 15.461821] Raw EDID: [ 15.461865] <3>00 00 00 00 00 00 00 00 00 00 00 00 07 00 00 00 ................ [ 15.461869] <3>00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 ................ [ 15.461872] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3f ...............? [ 15.461875] <3>0f 1f 3f 1f 3f 7f 00 00 00 00 00 00 00 00 00 00 ..?.?........... [ 15.461877] <3>00 00 00 00 00 00 00 ff 00 00 00 00 00 00 00 00 ................ [ 15.461880] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3f ...............? [ 15.461883] <3>03 1f 00 00 00 00 00 00 00 00 3f 00 00 00 0f 00 ..........?..... [ 15.461886] <3>00 00 00 00 00 00 00 00 00 00 0f 07 00 3f 00 00 .............?.. [ 15.461888] [ 15.822495] Raw EDID: [ 15.822539] <3>00 03 00 00 00 00 00 00 00 3f 00 00 00 00 00 00 .........?...... [ 15.822542] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 15.822545] <3>00 0f 00 00 00 00 00 00 00 00 00 00 00 3f 00 00 .............?.. [ 15.822548] <3>0f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 15.822551] <3>00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 ................ [ 15.822553] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 07 00 ................ [ 15.822556] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 15.822559] <3>00 00 00 00 00 00 00 00 7f 00 ff 00 00 00 00 00 ................ [ 15.822561] [ 15.861945] EXT4-fs (sda3): re-mounted. Opts: errors=remount-ro [ 16.193649] Raw EDID: [ 16.193692] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 16.193696] <3>00 00 00 00 1f 00 00 00 00 00 03 00 00 00 00 00 ................ [ 16.193699] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 16.193702] <3>00 00 00 00 00 ff 00 00 00 00 00 00 00 00 00 00 ................ [ 16.193705] <3>00 00 00 00 00 00 00 00 00 00 00 7f 00 00 00 00 ................ [ 16.193707] <3>00 00 00 7f 00 00 00 3f 00 00 00 00 00 07 3f 00 .......?......?. [ 16.193710] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 16.193713] <3>00 03 00 00 07 1f 00 00 00 00 00 00 00 00 00 00 ................ [ 16.193715] [ 16.499673] Raw EDID: [ 16.499717] <3>00 07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 16.499720] <3>00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ [ 16.499723] <3>00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 00 ................ [ 16.499726] <3>00 00 00 00 03 00 00 07 00 00 00 00 00 00 00 00 ................ [ 16.499729] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 16.499732] <3>00 ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 16.499734] <3>00 00 00 00 00 00 00 00 00 00 00 3f 00 00 01 00 ...........?.... [ 16.499737] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 16.499739] [ 16.499778] radeon 0000:01:05.0: HDMI-A-1: EDID block 0 invalid. [ 17.585964] Raw EDID: [ 17.586008] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 7f 00 ................ [ 17.586012] <3>00 00 00 00 00 00 00 00 00 00 00 ff 00 00 00 00 ................ [ 17.586015] <3>00 ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 17.586017] <3>00 00 00 00 00 00 00 00 00 00 00 3f 00 00 00 00 ...........?.... [ 17.586020] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 ................ [ 17.586023] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 17.586026] <3>00 00 00 00 00 00 00 00 00 7f 00 00 00 00 00 00 ................ [ 17.586028] <3>00 00 00 00 00 3f 00 00 00 00 00 00 00 00 00 00 .....?.......... [ 17.586030] [ 17.886217] Raw EDID: [ 17.886260] <3>00 00 00 00 00 00 00 7f 00 00 00 00 00 00 00 00 ................ [ 17.886263] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 17.886266] <3>00 0f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 17.886269] <3>00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 ................ [ 17.886271] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 17.886274] <3>00 00 00 00 00 0f 00 00 00 00 00 00 00 00 00 00 ................ [ 17.886277] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 ................ [ 17.886279] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 17.886282] [ 18.203072] Raw EDID: [ 18.203117] <3>00 00 00 00 00 00 0f 00 00 00 00 00 00 00 00 00 ................ [ 18.203120] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 18.203123] <3>01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 18.203126] <3>00 00 00 00 00 00 00 00 00 00 00 7f 00 00 00 00 ................ [ 18.203129] <3>00 00 00 0f 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 18.203131] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 ................ [ 18.203134] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 18.203137] <3>00 00 00 00 00 00 00 00 7f 00 00 00 00 00 00 00 ................ [ 18.203139] [ 18.493769] Raw EDID: [ 18.493812] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 ................ [ 18.493815] <3>00 00 00 00 00 00 00 00 00 00 00 00 1f 00 00 00 ................ [ 18.493818] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 18.493821] <3>00 00 00 00 00 00 03 00 00 00 00 00 00 00 00 00 ................ [ 18.493823] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 18.493826] <3>00 ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 18.493829] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 18.493832] <3>00 00 00 00 00 00 3f 00 00 00 00 00 00 00 00 00 ......?......... [ 18.493834] [ 18.493872] radeon 0000:01:05.0: HDMI-A-1: EDID block 0 invalid. [ 18.493877] [drm:radeon_dvi_detect] *ERROR* HDMI-A-1: probed a monitor but no|invalid EDID [ 18.900024] [drm] fb mappable at 0xF0040000 [ 18.900029] [drm] vram apper at 0xF0000000 [ 18.900031] [drm] size 5242880 [ 18.900033] [drm] fb depth is 24 [ 18.900034] [drm] pitch is 5120 [ 18.982054] drm: registered panic notifier [ 19.040041] [drm] Initialized radeon 2.10.0 20080528 for 0000:01:05.0 on minor 0 . . . [ 20.064119] Raw EDID: [ 20.064168] <3>00 00 00 00 00 00 00 00 00 00 07 00 00 00 00 00 ................ [ 20.064171] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1f ................ [ 20.064174] <3>00 00 00 00 00 00 00 1f 00 00 00 00 00 00 00 00 ................ [ 20.064177] <3>00 00 00 00 00 00 3f 00 00 00 00 00 00 00 00 00 ......?......... [ 20.064180] <3>00 00 00 00 03 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.064182] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 1f 00 00 ................ [ 20.064185] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.064188] <3>00 00 00 00 00 07 00 00 00 00 00 00 00 00 00 00 ................ [ 20.064190] [ 20.257421] Raw EDID: [ 20.257471] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.257474] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.257477] <3>00 00 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.257479] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.257482] <3>07 00 00 00 00 00 00 00 00 00 00 07 00 00 00 00 ................ [ 20.257485] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.257487] <3>00 00 00 00 00 01 00 00 00 00 00 00 03 00 00 00 ................ [ 20.257490] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.257492] [ 20.465811] Raw EDID: [ 20.465860] <3>00 00 00 3f 00 00 00 00 00 00 00 07 00 00 00 00 ...?............ [ 20.465863] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.465866] <3>00 00 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.465869] <3>00 00 00 00 00 00 00 00 00 00 00 00 1f 00 00 00 ................ [ 20.465872] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.465874] <3>00 00 00 00 00 00 07 00 00 00 00 00 00 00 00 00 ................ [ 20.465877] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.465880] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.465882] [ 20.665976] Raw EDID: [ 20.666026] <3>00 00 00 00 00 00 00 0f 00 00 00 00 00 00 00 00 ................ [ 20.666029] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.666032] <3>00 07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.666034] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.666037] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.666040] <3>00 00 00 00 00 00 3f 00 00 00 00 00 00 00 00 00 ......?......... [ 20.666043] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.666045] <3>0f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.666047] [ 20.666076] radeon 0000:01:05.0: HDMI-A-1: EDID block 0 invalid. [ 20.666081] [drm:radeon_dvi_detect] *ERROR* HDMI-A-1: probed a monitor but no|invalid EDID [ 20.900353] Raw EDID: [ 20.900399] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.900402] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.900405] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.900408] <3>07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.900411] <3>00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 ................ [ 20.900413] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 20.900416] <3>00 00 00 00 00 7f 00 00 00 00 00 00 00 00 00 00 ................ [ 20.900419] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1f ................ [ 20.900421] [ 21.102164] Raw EDID: [ 21.102209] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 21.102212] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 0f 00 ................ [ 21.102215] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 21.102217] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 21.102220] <3>00 00 00 00 00 00 7f 00 00 00 00 00 00 00 00 00 ................ [ 21.102223] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 21.102226] <3>1f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 21.102228] <3>00 00 00 00 00 00 00 00 00 00 07 00 00 00 00 00 ................ [ 21.102230] [ 21.303189] Raw EDID: [ 21.303234] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 21.303237] <3>00 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 21.303240] <3>00 00 00 00 00 00 00 00 00 00 00 1f 00 00 00 00 ................ [ 21.303243] <3>00 00 00 00 00 0f 00 00 00 00 00 00 00 00 00 00 ................ [ 21.303245] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 ................ [ 21.303248] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 21.303251] <3>00 00 00 00 00 00 00 00 00 00 ff 00 00 00 00 00 ................ [ 21.303254] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 21.303256] [ 21.488194] Raw EDID: [ 21.488248] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 0f 00 ................ [ 21.488251] <3>00 00 00 07 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 21.488254] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 21.488256] <3>00 00 00 00 00 00 3f 00 00 00 00 00 00 00 00 00 ......?......... [ 21.488259] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 21.488262] <3>0f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 21.488265] <3>00 00 00 00 00 00 00 00 00 00 03 00 00 00 00 00 ................ [ 21.488267] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 21.488269] [ 21.488300] radeon 0000:01:05.0: HDMI-A-1: EDID block 0 invalid. [ 21.488305] [drm:radeon_dvi_detect] *ERROR* HDMI-A-1: probed a monitor but no|invalid EDID [ 21.625439] r8169 0000:03:05.0: eth1: link up [ 23.012406] Raw EDID: [ 23.012414] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 ................ [ 23.012417] <3>00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 ................ [ 23.012420] <3>00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 ................ [ 23.012423] <3>00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 ................ [ 23.012426] <3>00 00 00 00 00 1f 00 00 00 00 00 00 00 00 00 00 ................ [ 23.012428] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 ................ [ 23.012431] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.012434] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.012436] [ 23.165127] Raw EDID: [ 23.165135] <3>00 00 00 00 7f 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.165138] <3>00 00 0f 00 00 00 00 00 00 00 00 00 00 00 1f 00 ................ [ 23.165141] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.165144] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.165147] <3>00 00 00 00 00 00 00 7f 00 00 00 00 00 00 00 00 ................ [ 23.165149] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.165152] <3>00 1f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.165155] <3>00 00 03 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.165157] [ 23.315132] Raw EDID: [ 23.315139] <3>00 00 00 00 00 00 00 00 00 0f 00 00 00 00 00 00 ................ [ 23.315142] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.315145] <3>00 00 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.315148] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.315151] <3>07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.315153] <3>00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 ................ [ 23.315156] <3>00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ [ 23.315159] <3>00 00 03 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.315161] [ 23.477121] Raw EDID: [ 23.477129] <3>00 00 00 00 00 00 00 00 00 0f 00 00 00 00 00 00 ................ [ 23.477132] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.477135] <3>00 00 00 00 00 ff 00 00 00 00 00 00 00 00 00 00 ................ [ 23.477138] <3>00 00 00 00 00 00 00 00 00 3f 00 00 00 00 00 00 .........?...... [ 23.477140] <3>00 00 00 0f 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.477143] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 ................ [ 23.477146] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 7f 00 ................ [ 23.477149] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.477151] [ 23.477156] radeon 0000:01:05.0: HDMI-A-1: EDID block 0 invalid. [ 23.477161] [drm:radeon_dvi_detect] *ERROR* HDMI-A-1: probed a monitor but no|invalid EDID [ 23.650366] Raw EDID: [ 23.650374] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.650377] <3>00 00 3f 00 00 00 00 00 00 00 00 00 0f 00 00 00 ..?............. [ 23.650380] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.650383] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 ................ [ 23.650385] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.650388] <3>00 00 00 00 00 ff 00 00 00 00 00 00 00 00 00 00 ................ [ 23.650391] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.650394] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 3f ...............? [ 23.650396] [ 23.792015] Raw EDID: [ 23.792022] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.792025] <3>00 00 00 00 00 00 ff 00 00 00 00 00 00 00 00 00 ................ [ 23.792028] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.792031] <3>00 00 00 00 00 00 00 00 00 3f 00 00 00 00 00 00 .........?...... [ 23.792034] <3>00 00 00 00 00 00 1f 00 00 00 00 00 00 00 00 00 ................ [ 23.792036] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.792039] <3>00 1f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.792042] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.792044] [ 23.930039] Raw EDID: [ 23.930047] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.930050] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.930053] <3>00 00 3f 00 03 00 00 00 00 00 00 00 00 00 00 00 ..?............. [ 23.930056] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.930058] <3>00 00 00 1f 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.930061] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.930064] <3>00 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 ................ [ 23.930066] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 23.930069] [ 24.108740] Raw EDID: [ 24.108748] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 24.108752] <3>00 00 00 00 00 00 00 ff 00 00 00 00 00 00 00 00 ................ [ 24.108754] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 24.108757] <3>00 1f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 24.108760] <3>00 00 00 00 00 00 00 00 00 00 00 03 00 00 00 00 ................ [ 24.108763] <3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 24.108765] <3>00 00 00 00 00 00 1f 00 00 00 00 00 00 00 ff 00 ................ [ 24.108768] <3>00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 ................ [ 24.108770] [ 24.108775] radeon 0000:01:05.0: HDMI-A-1: EDID block 0 invalid. [ 24.108780] [drm:radeon_dvi_detect] *ERROR* HDMI-A-1: probed a monitor but no|invalid EDID ...

Best regards

Thomas