I ran the xedid script but it did not allow me to use the monitor in
question. (I have an irun ZT-SH270QHD.)
get-edid says:
get-edid: get-edid version 2.0.0
Performing real mode VBE call
Interrupt 0x10 ax=0x4f00 bx=0x0 cx=0x0
Function supported
Call successful
VBE version 300
VBE string at 0x11100 "NVIDIA"
VBE/DDC service about to be called
Report DDC capabilities
Performing real mode VBE call
Interrupt 0x10 ax=0x4f15 bx=0x0 cx=0x0
Function supported
Call successful
Monitor and video card combination does not support DDC1 transfers
Monitor and video card combination supports DDC2 transfers
0 seconds per 128 byte EDID block transfer
Screen is not blanked during DDC transfer
Reading next EDID block
VBE/DDC service about to be called
Read EDID
Performing real mode VBE call
Interrupt 0x10 ax=0x4f15 bx=0x1 cx=0x0
Function supported
Call failed
The EDID data should not be trusted as the VBE call failed
EDID claims 255 more blocks left
EDID blocks left is wrong.
Your EDID is probably invalid.
/var/log/Xorg.0.log says:
552 [ 28.729] (WW) NVIDIA(GPU-0): The EDID read for display device DFP-0
is invalid: the
553 [ 28.729] (WW) NVIDIA(GPU-0): checksum for EDID version 1
extension is invalid.
554 [ 28.729] (--) NVIDIA(GPU-0):
555 [ 28.729] (--) NVIDIA(GPU-0): Raw EDID bytes:
556 [ 28.729] (--) NVIDIA(GPU-0):
557 [ 28.729] (--) NVIDIA(GPU-0): 00 ff ff ff ff ff ff 00 04 68 fa 00
00 00 00 00
558 [ 28.729] (--) NVIDIA(GPU-0): 28 15 01 03 a5 3c 22 78 22 6f b1 a7
55 4c 9e 25
559 [ 28.729] (--) NVIDIA(GPU-0): 0c 50 54 00 00 00 01 01 01 01 01 01
01 01 01 01
560 [ 28.729] (--) NVIDIA(GPU-0): 01 01 01 01 01 01 56 5e 00 a0 a0 a0
29 50 30 20
561 [ 28.729] (--) NVIDIA(GPU-0): 35 00 55 50 21 00 00 1a 00 00 00 fc
00 51 48 44
562 [ 28.729] (--) NVIDIA(GPU-0): 32 37 30 0a 20 20 20 20 20 20 00 00
00 fc 00 51
563 [ 28.729] (--) NVIDIA(GPU-0): 48 44 32 37 30 0a 20 20 20 20 20 20
00 00 00 fc
564 [ 28.729] (--) NVIDIA(GPU-0): 00 51 48 44 32 37 30 0a 20 20 20 20
20 20 01 b0
565 [ 28.729] (--) NVIDIA(GPU-0):
566 [ 28.729] (--) NVIDIA(GPU-0): ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff
567 [ 28.729] (--) NVIDIA(GPU-0): ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff
568 [ 28.729] (--) NVIDIA(GPU-0): ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff
569 [ 28.729] (--) NVIDIA(GPU-0): ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff
570 [ 28.729] (--) NVIDIA(GPU-0): ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff
571 [ 28.729] (--) NVIDIA(GPU-0): ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff
572 [ 28.729] (--) NVIDIA(GPU-0): ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff
573 [ 28.729] (--) NVIDIA(GPU-0): ff ff ff ff ff ff ff ff ff ff ff ff
ff ff ff ff
574 [ 28.729] (--) NVIDIA(GPU-0):
575 [ 28.729] (--) NVIDIA(GPU-0): 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00
576 [ 28.729] (--) NVIDIA(GPU-0): 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00
577 [ 28.729] (--) NVIDIA(GPU-0): 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00
578 [ 28.729] (--) NVIDIA(GPU-0): 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00
579 [ 28.729] (--) NVIDIA(GPU-0): 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00
580 [ 28.729] (--) NVIDIA(GPU-0): 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00
581 [ 28.729] (--) NVIDIA(GPU-0): 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00
Running xedid as root produces no output and exits with code 0.
Rebooting after running the script has no effect.
$ uname -a
Linux lovecraft 3.5.0-17-generic #28-Ubuntu SMP Tue Oct 9 19:31:23 UTC 2012
x86_64 x86_64 x86_64 GNU/Linux
This is on Linux Mint 14; I'll retest with an ubuntu livecd at my
earliest convenience.
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https://bugs.launchpad.net/bugs/992346
Title:
*ERROR* EDID checksum is invalid, remainder is 161
Status in “xdiagnose” package in Ubuntu:
Fix Released
Bug description:
This computer is connected to its monitor via a VGA KVM. The display
looks fine but dmesg is filled with EDID errors:
[ 36.583335] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 161
[ 36.583338] Raw EDID:
[ 36.583341] 10 ff ff ff ff ff ff 00 4d d9 90 11 01 01 01 01
[ 36.583343] 09 0d 21 03 0e 26 1e 8c ea 6f 89 aa 5a 4d 94 24
[ 36.583345] 1a 48 4c a1 08 00 81 80 81 40 01 21 01 01 01 01
[ 36.583347] 01 01 01 01 01 01 30 2a 00 98 51 00 2a 40 30 70
[ 36.583349] 13 00 78 2d 11 00 00 1e 00 00 00 fd 00 37 41 1c
[ 36.583351] 41 0b 40 0a 20 20 20 20 20 24 00 00 00 fc 00 53
[ 36.583353] 44 4d 2d 53 39 35 0a 20 20 20 20 20 00 00 00 ff
[ 36.583354] 00 34 32 35 39 39 31 33 0a 20 20 20 20 20 00 d3
Graphics tends to also break on the system after a while. I think it
may occur after switching to and from another system or something but
haven't pinned that down.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xorg 1:7.6+12ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic-pae 3.2.14
Uname: Linux 3.2.0-23-generic-pae i686
ApportVersion: 2.0.1-0ubuntu5
Architecture: i386
CompizPlugins:
[core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
Date: Mon Apr 30 18:49:57 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
DkmsStatus:
bcmwl, 5.100.82.38+bdcom, 3.2.0-17-generic-pae, i686: installed
bcmwl, 5.100.82.38+bdcom, 3.2.0-19-generic-pae, i686: installed
bcmwl, 5.100.82.38+bdcom, 3.2.0-23-generic-pae, i686: installed
ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu
GraphicsCard:
Intel Corporation 82G965 Integrated Graphics Controller [8086:29a2] (rev 02)
(prog-if 00 [VGA controller])
Subsystem: Intel Corporation Device [8086:514d]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120301)
ProcEnviron:
LANGUAGE=en_US:en
TERM=xterm-256color
PATH=(custom, user)
LANG=C
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic-pae
root=UUID=ab5cf3f2-058f-4f92-afe1-9d4bb7232c8c ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/17/2008
dmi.bios.vendor: Intel Corp.
dmi.bios.version: MQ96510J.86A.1754.2008.1117.0002
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: DG965OT
dmi.board.vendor: Intel Corporation
dmi.board.version: AAD63733-205
dmi.chassis.type: 3
dmi.modalias:
dmi:bvnIntelCorp.:bvrMQ96510J.86A.1754.2008.1117.0002:bd11/17/2008:svn:pn:pvr:rvnIntelCorporation:rnDG965OT:rvrAAD63733-205:cvn:ct3:cvr:
version.compiz: compiz 1:0.9.7.6-0ubuntu1
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati
1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:0.0.16+git20111201+b5534a1-1build2
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