[Openchrome-devel] [Bug 94258] X crashes when using ARandR to rotate screen or change resolutions

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94258

--- Comment #10 from Kevin Brace <kevinbrace at gmx.com> ---
Hi Eric,

I have made some progress on the screen resolution change crash you have
reported.
I did find the cause of why the computer was crashing X server when the screen
resolution was changed.
However, it is still unlikely to work completely since the current code will
crash the display controller hardware when the screen resolution is changed
from the OS.
I am giving highest priority to fixing this bug right now, and many of the code
commits I have done since the release of OpenChrome Version 0.4.0 is basically
the preparation work for fixing this bug.
This improvement in the screen resolution change code works in laptops where 2
displays are working simultaneously, but I have also observed that it does
crash the display controller hardware in systems with only 1 active display
controller at this point.
This crash pattern has been observed in several desktop type hardware (i.e.,
CLE266 and P4M890) with only 1 active display controller.
I have been able to test extended screen, and I can now get 1280 X 800 FP
screen and 640 X 480 VGA screen to function as an extended screen using ARandR
you have introduced to me.
The total screen resolution appears to be limited by the 2048 dot X direction
limitation set by the X server or existing OpenChrome code. 
I will say that you should give the current master branch code a try (Version
0.4.107), and see how it performs.

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