Fuzzy display with Intel 2.1.0 driver on LVDS

Brice Goglin brice.goglin at gmail.com
Thu Jul 5 23:50:13 PDT 2007


Doug Larrick wrote:
> I am experiencing a display that is blurred in the vertical dimension
> with the newly-release Intel 2.1.0 driver.  I have narrowed it down to
> Git commit 1e2e301348b4168aeed38b3fdc6b0e43d5678a86, "Fix load detection
> to use border region instead of blanking."
>
> Specifically, the lines:
>
>
> /*
>  * Give us some border at the bottom for load detection
>  */
> adjusted_mode->CrtcVBlankStart = adjusted_mode->CrtcVSyncStart;
> if (adjusted_mode->CrtcVBlankEnd - adjusted_mode->CrtcVBlankStart < 3)
>   adjusted_mode->CrtcVBlankStart = adjusted_mode->CrtcVBlankEnd - 3;
>   

These lines also cause an issue on my i945 (1600x1200 doesn't work
anymore on the TMDS). From what I understood, the lines might only be
needed for i8xx chipsets. Eric Anholt is aware of the problem.

Brice




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