On Wednesday, June 27, 2007 6:30:14 am Philippe Gaultier wrote: > Anyway, I would like to remove Xorg and only use the framebuffer because > - I don't need X > - I would like to reduce the whole application footprint > > So, I did the following : > > 1- I tried to apply the 3 Patches from Jesse Barnes but I was not able to > apply them properly (I had some missing symbols while compiling the kernel) > I was not able to give a try with those patches > > 2- I cloned the git/drm tree using branch modesetting-101 > Compilation was fine, intel_fb loads and the drm/framebuffer appears in > /proc/fb but I have some troubles / remarks
Yeah, (2) is the right thing to do. The patches are out of date. > a. the drm/intel_fb does not load it the screen is off > In fact, if I don't turn on the Plasma display, the drm/intel_fb does not > appear in /proc/fb. > > b. if the plasma display is on, the drm/fb loads up (you can see the > log at the end of this email). > - I can see the framebuffer in /proc/fb > - mplayer -vo fb does not complain > > Anyway, I got two main problems : > > First: the EDID is not extracted correctly (it was correct with 2.0.0 Xorg > driver), I get only one modeline : > ---8<--- > Modeline 5:"640x480" 60000 25200 640 656 752 800 480 490 492 525 > ---8<--- Hm, so it just defaults to 640x480... you'd have to add some debugging code to the i2c code that fetches the EDID data to see what's going on. I may just be that the timing is off somewhere, just enough to prevent the kernel from receiving the EDID block. > Second, when the mode "640x480" is set the screen does not display anything > good. I only get some black screen which is sometime replace with coloured > snow (I don't know how to explain it better...). > If I try mplayer -vo fbdev(2), I'm only able to get a black screen > > So, here are my questions : > > - Are you still working on this drm/fb (modesetting) ? Yes, though I haven't checked anything in for a few weeks. I hope to be back on it shortly (have a few other features to get working first). > - Is there a place where I can find a full procedure to make reliable > tests ? > - Are you interested in feedbacks ? (do you want me to make some specific > tests, do you want access to my computer, ...) > - ... Yes, definitely. It's great that there's interest in the tree, and we're interested in hearing about problems or different usage models for the code, but keep in mind that it's *very* bleeding edge, so when it breaks you get to keep both pieces. :) Jesse ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
