-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 09/12/2014 07:35 AM, Jorge Lopez wrote: > I don't need AGP support because my card is PCI-E. > So, i think you have have problems with the resolution. If you are doing early KMS, you must construct your own EDID or you will run into problems. The makefile included in the Documentation/EDID sources of the kernel. [0] It says "The code (see drivers/gpu/drm/drm_edid_load.c) contains built-in data sets for commonly used screen resolutions (800x600, 1024x768, 1280x1024, 1600x1200, 1680x1050, 1920x1080) as binary blobs, but the kernel source tree does not contain code to create these data.", therefore it is nonfree! It should be reported to Linux-libre developers :S So, in my opinion you should follow the Late start mode [1] and pay attention on the first part that says "Remove all vga= options from the kernel line in the bootloader configuration file. Using other framebuffer drivers (such as uvesafb or radeonfb) will conflict with KMS. Remove any framebuffer related modules from /etc/mkinitcpio.conf. video= can now be used in conjunction with KMS." There is a part that says "video= can now be used in conjunction with KMS", if the problem persists specifying resolution with video= command line may be useful. A mode can be forced on the kernel command line, but the command line option video is poorly documented in the DRM case. Bits and pieces on how to use it can be found in [2][3] or if you are using GRUB, check [4]
[0]:https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/plain/Documentation/EDID/HOWTO.txt [1]:https://wiki.archlinux.org/index.php/ATI#Late_start [2]:http://cgit.freedesktop.org/nouveau/linux-2.6/tree/Documentation/fb/modedb.txt [3]:http://cgit.freedesktop.org/nouveau/linux-2.6/tree/drivers/gpu/drm/drm_fb_helper.c [4]:https://wiki.archlinux.org/index.php/GRUB#Setting_the_framebuffer_resolution -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBAgAGBQJUEtMeAAoJEOaXR1L5cERW2pgQAL3DXozsJHGjRfkh5mHSH9jO x4dQEDr8C6DFrKxhzSEl3lQ9tLL+rxa/0EOJLrRnnHYf5QaIVXFjZrwFcFlzuwrm HTufVMY8Nw4YQbZYYAHA0eoGFehDS9tGIbPTMbJ9W2xPcMv1NCg4eoLq+G4aGNQ+ CSu6HIPEHgGQvGypQ68s7/bjOcZyCYU5b/HvJX9IfXtbse5O5u7DXFnEJuZrAsFZ SG4NT738OZ7SXsIDk6k+ZIPjFqlAJvoj8lVXzDjYzWKntGyNthkMsE8epQzKuaFo 6d/PChvNnUg1CSYk5dJ0e0ssHSxOC/1l3BjLFreHEBLqIej/l5ADMrG3ni7/QW2t E+nZG+FwaTwOcPwOGW7kFW0DL6o1X7/Yw0MLo4QEVOO+TyrFOaPrJQoLrMqos4JD 1WG95CwrGD7NDxkXuEieUQuAOsCQmXijEGxK9X1iX2jUrEXxjp4aP6empNWz6PT3 lcoLxCpAh6PBZmx0dgW5gvoKPabKmi2NnV0ZCWPiiTD2DwiDVJZqKI0S9+++tsCb 0fA4f7jEC1nYLXkbxPBWOydns0ElOBgGoPjKoQnw0/E4y8lkR3Z7AIGhXFKwqxmI PNHklqz6u2DQw/Nb+z4ITAdZW98C2u73244DSWL/KIRaUktaEkpZ7LtiUeqqN0Gu ORPD0Djge6lBhn9XZ08b =ua3L -----END PGP SIGNATURE----- _______________________________________________ Dev mailing list [email protected] https://lists.parabolagnulinux.org/mailman/listinfo/dev
