[Bug 78562] [gma500] wrong pixel clock on LVDS (half the correct frequency)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78562

--- Comment #12 from linuxuser330250 <linuxuser330250 at gmx.net> ---
Status?

My ASUS EeePC 1101HA has an Intel Atom Z520 processor @1.33GHz and a US15W
Ultra Mobile chipset. This very chipset includes an IGP called Intel GMA500 or
Poulsbo, which really is a PowerVR SGX 535 embedded graphics core.

Links that might be of interest:
http://www.notebookcheck.net/Intel-Graphics-Media-Accelerator-500-GMA-500.12614.0.html
https://wiki.archlinux.org/index.php/poulsbo

QUESTIONS:
1) Why does it flicker at all?
2) Why does it flicker in at least one case (linuxuser) on 14.04 but not on
12.04.4 of Ubuntu?
3) Why does it flicker on every Linux in another case (pmarques)?
4) What can we do about it and how to proceed?

Notably there are various bug reports of users with the Poulsbo chipset
graphics having similar problems...

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