Comment 39 for bug 586325

(In reply to comment #38)
> Created an attachment (id=34795) [details]
> dmesg (for comment #38)
>
> > Can you disable the vesa fb driver in kernel configuration and see whether the issue still exists?
>

Thanks for the testing.

> Without the vesa fb driver there no big difference, only the "vga=" kernel
> parameter doesn't work anymore. The display switches from text mode to higher
> resolution later when the i915 module is loaded.

It seems that the issue still exists after removing the vesa fb driver.

>
> Yesterday I had again the situation where I could NOT recover from a "bad mode"
> (0x49) to a working one. After running "xrandr --output DVI1 --mode 0x49" the
> monitor went to standby mode. Then I tried to revert to mode 0x43, which
> resulted in the "out of sync" pattern (see attached dmesg).

The message of "out of sync" is related with SDVO DVI. I am not sure whether the issue is related with SDVO.

Can you connect this monitor by using VGA connector and see whether the issue can also be reproduced?

Thanks
   Yakui