[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
Christian Weiske, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ . If it remains an issue, could you please run the following command in the development release from a Terminal (Applications-Accessories-Terminal), as it will automatically gather and attach updated debug information to this report: apport-collect -p xserver-xorg-video-ati REPLACE-WITH-BUG-NUMBER Please note, given that the information from the prior release is already available, doing this on a release prior to the development one would not be helpful. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Changed in: xserver-xorg-video-ati (Ubuntu) Importance: High = Low ** Changed in: xserver-xorg-video-ati (Ubuntu) Status: Confirmed = Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
If you had read my last comment, you would have noticed that the issue has been resolved already. I could not close it unfortunately, because I don't see a close button. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
Christian Weiske, this bug report is being closed due to your last comment https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video- ati/+bug/914437/comments/18 regarding this being resolved. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the revealed drop down box. You can learn more about bug statuses at https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time to report this bug and helping to make Ubuntu better. Please submit any future bugs you may find. ** Changed in: xserver-xorg-video-ati (Ubuntu) Status: Incomplete = Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
I have a laptop. As soon as I connect my external monitor via HDMI, dmesg provides the following error: [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 254 Raw EDID: ff ff ff ff ff ff ff ff 1a b3 45 07 01 01 01 01 21 11 01 03 80 2f 1e 82 2a ee 95 a3 54 4c 99 26 0f 50 54 a5 4b 00 95 0f 81 80 81 40 71 4f 95 00 b3 00 81 c0 01 01 21 39 90 30 62 1a 27 40 68 b0 36 00 da 28 11 00 00 1c 00 00 00 ff 00 59 45 33 4c 30 31 30 32 36 33 0a 20 20 00 00 00 fd 00 38 4b 1f 53 0f 00 0a 20 20 20 20 20 20 00 00 00 fc 00 58 32 32 57 2d 31 0a 20 20 20 20 20 20 00 53 i915 :00:02.0: HDMI-A-1: EDID block 0 invalid. When I connect the external monitor via VGA, it works fine. The external monitor also used to work fine via HDMI/DVI quite some time ago. xrandr has the following output (the external monitor in connected by VGA and also by HDMI/DVI): Screen 0: minimum 320 x 200, current 1600 x 900, maximum 8192 x 8192 LVDS1 connected 1600x900+0+0 (normal left inverted right x axis y axis) 382mm x 214mm 1600x900 60.0*+ 1440x900 59.9 1360x768 59.8 60.0 1152x864 60.0 1024x768 60.0 800x60060.3 56.2 640x48059.9 VGA1 connected (normal left inverted right x axis y axis) 1680x1050 60.0 + 1280x1024 75.0 60.0 1440x900 75.0 59.9 1280x960 60.0 1152x864 75.0 1280x720 60.0 1024x768 75.1 60.0 800x60075.0 60.3 640x48075.0 60.0 720x40070.1 HDMI1 disconnected (normal left inverted right x axis y axis) DP1 disconnected (normal left inverted right x axis y axis) So I can't even active the monitor by HDMI (xrandr --output HDMI1 --auto hs no effect). As anyone found a workaround? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
May this bug has the same cause as the bug here? https://bugs.launchpad.net/ubuntu/+source/linux/+bug/712075 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
The second display works again on Ubuntu 12.10, kernel 3.5.0. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
I have an ATI Radeon HD3450 (RV620) that shows this issue but if I go back to my older Radeon X1300, both monitors work fine and no EDID errors appear in the kernel log. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
High-Problem with an essential hardware component (monitor) ** Changed in: xserver-xorg-video-ati (Ubuntu) Importance: Undecided = High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: xserver-xorg-video-ati (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
This looks like potentially the EDID is corrupted. According to http://en.wikipedia.org/wiki/Extended_display_identification_data the first 8 bytes should be 00ff ff00, however we see the first 8 bytes in the dmesg showing all 0xff. So the difference is 0xff+ 0xff = 0x1fe, but looks like the remainder is only a char, so we get 0xfe or 254. 1) You can verify the EDID using the read-edid package. Then running 'sudo get-edid | xxd' to check. In addition 'sudo get-edid parse-edid' will give you mode information that may be helpful as well. Can you paste that info into the bug? 2) It would be good to check that the monitor works in 11.04 and see what the dmesgs show. I wonder if we're getting the same messages about EDID or any messages such as 'Fixing EDID header, your hardware may be failing.', please attach this information as well. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
** Attachment added: read-edid | xxd https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+attachment/2689171/+files/read-edid-xxd -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
get-edid does not show the EDID of the monitor with the broken EDID. Booting 11.04, the monitor *works fine*. Nontheless dmesg shows the following, which is nearly the same as on 11.10 and 12.04: [ 39.328047] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 254 [ 39.328048] [drm:drm_edid_block_valid] *ERROR* Raw EDID: [ 39.328050] 3ff ff ff ff ff ff ff ff 4d d9 50 1e 01 01 01 01 M.P. [ 39.328052] 301 0c 01 02 0e 1e 17 78 ea 7e a9 a0 58 4e 96 25 ...x.~..XN.% [ 39.328053] 31e 48 4c a1 08 00 01 01 01 01 01 01 01 01 01 01 .HL. [ 39.328055] 301 01 01 01 01 01 64 19 00 40 41 00 26 30 18 88 ..d..@A.0.. [ 39.328056] 336 00 30 e4 10 00 00 18 00 00 00 fd 00 30 41 1c 6.0..0A. [ 39.328058] 33d 0a 00 0a 20 20 20 20 20 20 00 00 00 fc 00 53 =... .S [ 39.328060] 344 4d 2d 53 35 31 0a 20 20 20 20 20 00 00 00 ff DM-S51. [ 39.328061] 300 34 35 32 37 39 35 35 0a 20 20 20 20 20 00 97 .4527955. .. [ 39.328062] [ 39.328065] radeon :01:00.0: DVI-I-2: EDID block 0 invalid. [ 39.328067] [drm:radeon_dvi_detect] *ERROR* DVI-I-2: probed a monitor but no|invalid EDID I don't see any your hardware may be failing message, neither a fixing edid header one. The resolutions in the display settings manager are detected nontheless - see screenshot display- settings-11.04.png ** Attachment added: display-settings-11.04.png https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+attachment/2689216/+files/display-settings-11.04.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
The problem also occurs on the Fedora 16 live CD (kernel 3.1.0-somtething). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
Related if not the same: https://bugzilla.redhat.com/show_bug.cgi?id=533632 ** Bug watch added: Red Hat Bugzilla #533632 https://bugzilla.redhat.com/show_bug.cgi?id=533632 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
Booting the system with both displays attached shows only the working monitor in the display settings. When booting the system with only the non-working monitor attached actually shows the desktop on the non-working display, but in a wrong resolution - and the display settings application does not show any monitor at all (see screenshots). ** Attachment added: display settings with the broken monitor attached only https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+attachment/2682246/+files/2012-01-19%20display%20settings%20no%20monitor.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
** Attachment added: display settings with both monitors connected https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+attachment/2682245/+files/2012-01-19%20display%20settings.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
This still happens on today's live cd/usb of 12.04 (precise): [ 66.354209] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 254 [ 66.354211] Raw EDID: [ 66.354212] ff ff ff ff ff ff ff ff 4d d9 50 1e 01 01 01 01 [ 66.354213] 01 0c 01 02 0e 1e 17 78 ea 7e a9 a0 58 4e 96 25 [ 66.354215] 1e 48 4c a1 08 00 01 01 01 01 01 01 01 01 01 01 [ 66.354216] 01 01 01 01 01 01 64 19 00 40 41 00 26 30 18 88 [ 66.354218] 36 00 30 e4 10 00 00 18 00 00 00 fd 00 30 41 1c [ 66.354219] 3d 0a 00 0a 20 20 20 20 20 20 00 00 00 fc 00 53 [ 66.354221] 44 4d 2d 53 35 31 0a 20 20 20 20 20 00 00 00 ff [ 66.354222] 00 34 35 32 37 39 35 35 0a 20 20 20 20 20 00 97 [ 66.354224] radeon :01:00.0: DVI-I-2: EDID block 0 invalid. [ 66.354226] [drm:radeon_dvi_detect] *ERROR* DVI-I-2: probed a monitor but no|invalid EDID [ 66.406913] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 254 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
Looks like this could be related to: https://bugzilla.redhat.com/show_bug.cgi?id=668196 I tried this on my own Radeon HD 4870 running on Ubuntu 11.10. I have two of the same monitors Samsung 204B. One cable is DVI and the other is DVI-VGA adapter, and VGA cable into the monitor. After plugging this in, I launched the gnome Displays settings and was able to apply the new settings and get this setup to work. ** Bug watch added: Red Hat Bugzilla #668196 https://bugzilla.redhat.com/show_bug.cgi?id=668196 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 914437] Re: Second display not recognized anymore; EDID checksum is invalid
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/914437 Title: Second display not recognized anymore; EDID checksum is invalid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/914437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
