Re: Flashing screen in X with Chips 65540
Daniel Reuter <reuter@Uni-Hohenheim.DE> wrote:
> Similar case with me: When I do a LCD/CRT hardware switch (Fn+F5) and
back
> again, the problem is fixed, and X runs well. But terminating X, the
> console, from which I started X, is crumbled and I have to do the same
> again.
I grabbed this from the Xfree86 website:
"Textmode is not properly restored
This has been reported on some configurations. Many laptops use the
programmable clock of the 6554x chips at the console. It is not always
possible to find out the setting that is used for this clock if BIOS has
written the MClk after the VClk. Hence the server assumes a 25.175MHz clock
at the console. This is correct for most modes, but can cause some problems.
Usually this is fixed by switching between the LCD and CRT. Alternatively
the user can use the "TextClockFreq" option described above to select a
different clock for the text console. Another possible cause of this problem
is if the kernel is compiled with the "APM_DISPLAY_BLANK" option. As
mentioned before, this option should be disabled."
I think this applies to Daniel's problem with restoring the textmode.
Anyways, I will mail the Xfree86 project and ask if they know anything about
this problem.
/Christian
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