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-   -   Bug#622993: I can confirm this bug (http://www.linux-archive.org/debian-kernel/520136-bug-622993-i-can-confirm-bug.html)

Lisandro Damián Nicanor Pérez Meyer 04-30-2011 12:56 AM

Bug#622993: I can confirm this bug
 
Hi!I have a

01:00.1 Audio device: ATI Technologies Inc Manhattan HDMI Audio [Mobility
Radeon HD 5000 Series]

With a dual screen setup. Not so long ago (less than a week) both monitors
(ViewSonic VG2021wm) were working fine. Somehow the monitor connected to the
DVI port started not being detected correctly on boot (wrong edid?). Dmesg
shows:

[drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 54
[drm:drm_edid_block_valid] *ERROR* Raw EDID:
<3>00 ff ff ff ff ff ff 00 5a 63 1e d9 01 01 01 01 ........Zc......
<3>18 11 01 03 0e 2b 1b 78 2e cf c5 a3 5a 49 a0 25 .....+.x....ZI.%
<3>12 50 54 bf ef 80 81 80 81 40 71 4f 01 01 01 01 .PT......@qO....
<3>01 01 01 01 01 01 21 39 90 30 62 1a 27 40 68 b0 ......!9.0b.'@h.
<3>36 00 b1 0e 11 00 00 1c 36 00 00 ff 00 51 44 57 6.......6....QDW
<3>30 37 32 34 36 30 38 36 37 0a 00 00 00 fd 00 32 072460867......2
<3>4b 1e 52 11 00 0a 20 20 20 20 20 20 00 00 00 fc K.R... ....
<3>00 56 47 32 30 32 31 77 6d 2d 32 0a 20 20 00 64 .VG2021wm-2. .d

And so I can't go more than 1024x768 on a 1680x1050 capable LCD. As this was
working some days ago, there must have been a regression somewhere :-/

Kinds regards, Lisandro.

--
"If I have been able to see farther,
it was only because I stood
on the shoulders of giants"
Sir Isaac Newton

Lisandro Damián Nicanor Pérez Meyer
http://perezmeyer.com.ar/
http://perezmeyer.blogspot.com/


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