Xorg7 + i810 driver + 915resolution = still can't go above 1600x1200.

Alan Hourihane alanh at fairlite.demon.co.uk
Sun Oct 29 12:02:57 PST 2006


On Sat, 2006-10-28 at 17:13 -0700, List Subscriber wrote:
> Yes, I suspected as much. The problem really appears to be elsewhere ...
> its almost as if the resolution is being artificially upper-bounded at
> 1600x1200 by the driver.
> 
> To test this, I just removed any 915resolution mode injections letting
> the V_BIOS report its native modes, the highest there being 1920x1440.
> And indeed, xrandr (and the corresponding Xorg log entries) fail to
> detect/report this mode. This establishes that even without any
> tinkering whatsoever, modes higher than 1600x1200 are not being seen.
> 
> What then about non-standard modes *under* the 1600x1200 pixel count? I
> injected 1680x1050 with 915resolution and lo and behold, it works perfectly!
> 
> So, I now believe that the i810-1.6 driver is forcibly bounding the
> pixel count at around 1600x1200, at least for the 945G. If this is
> indeed the case, is it then a regression in 1.6?

Send a full log and I'll take a closer look.

Alan.




More information about the xorg mailing list