Re: radeonfb: DDC read wrong?
From: Luca <hidden>
Date: 2006-06-27 19:11:12
Il Tue, Jun 27, 2006 at 04:55:49AM +0800, Antonino A. Daplas ha scritto:
Robert Siemer wrote:quoted
On Sun, Jun 25, 2006 at 08:00:30AM +0800, Antonino A. Daplas wrote:quoted
Robert Siemer wrote:quoted
On Sat, Jun 24, 2006 at 08:11:46PM +0800, Antonino A. Daplas wrote:quoted
Robert Siemer wrote:Disregard the previous patch, I forgot to adjust the checksum. Try this instead...The patch works in the way that I see a console without a video= param. Please answer my questions: -Does the EDID block that reads the kernel get somehow exported or used somewhere else (in kernel maybe)?For drivers that use the EDID, it gets converted into struct fb_monspecs. Part of this structure is a private mode database (cat /sys/class/graphics/fb0/modes).
With radeonfb you can also access the raw edid block(s): /sys/class/graphics/fb0/device/edid1 /sys/class/graphics/fb0/device/edid2 (for second monitor, if any).
quoted
-Which mode gets choosen from the resulting set of resolutions? I mean, based on what?Depends on the driver. A combination of the 'first detailed timing is preferred' flag and a detailed timing is the initial startup mode. As for radeonfb, I think it just grabs the first detailed timing for the initial mode.
Yes, the selection goes like this: - mode option - 1st detailed block - 1st mode in the db Luca -- Home: http://kronoz.cjb.net Se alla sera, dopo una strepitosa vittoria, guardandoti allo specchio dovessi notare un secondo paio di palle, che il tuo cuore non si riempia d'orgoglio, perche` vuol dire che ti stanno inculando -- Saggio Cinese Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642