[Bug 21963] (mild) screen corruption on left rotated display (RS780)

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=21963





--- Comment #17 from Peter Hercek <phercek at gmail.com>  2009-06-28 13:34:42 PST ---
I have this bug too. DRM is from kernel 2.6.30, radeon git version from
2009-06-28 with the partial fix from Alex applied. I have dual head
configuration, first monitor is 1400x1050 and the second one is 2560x1024. The
first monitor is rotated left and the second one has position set to "1050
160". The card is RV670PRO (agp version). Here is how it looks like (pixel
columns mumbered from 0 to 1049):
* 0. column is not shown (it is always black on the monitor)
* columns 1-10 seem to be shown correclty after the black column
* columns 11-27 are corrupted, it looks like the logical 17 columns are shown
on 16 physical (monitor) columns
* columns 28-1048 are shown correctly but they are shifted by one to the right
on the monitor (so logical column 1048 is the last physical column on the
monitor)
* column 1049 (the last one) is not shown on the first monitor at all
* but the columns 1048 and 1049 are shown as the first two columns of the
second monitor (that means column 1048 is shown two times (once on each
monitor))


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