2011/11/28 Adam Jackson <ajax at redhat.com> > On 11/28/11 12:28 PM, Keith Packard wrote: > >> On Wed, 26 Oct 2011 10:53:11 -0400, Adam Jackson<ajax at redhat.com> wrote: >> >>> On Wed, 2011-10-19 at 10:28 -0400, Adam Jackson wrote: >>> >>> I assume the SDVO LVDS options block in the VBT would tell us what bits >>>> are correct to program here, but intel_bios.h documents only the layout >>>> of that structure, not its content. Or, we can hope that the SDVO card >>>> set it up correctly for us (hah). >>>> >>>> Intel people, care to shed some light here? >>>> >>> >>> Just re-raising this. I suspect we can't support SDVO LVDS correctly >>> without knowing more here. In particular: >>> >>> - what "panel type" means in struct bdb_sdvo_lvds_options >>> >> >> Which of the four panels in the SDVO info is actually connected. >> > > Thank you for this! Let's see if we can figure the rest of this out. > > 4ernov, can you build a kernel with the following patch added: > > http://lists.freedesktop.org/**archives/intel-gfx/2011-** > November/013662.html<http://lists.freedesktop.org/archives/intel-gfx/2011-November/013662.html> > > and boot with drm.debug=0x4, and attach dmesg from running it? Also, > describe your configuration more exactly; it's clear from older emails from > you that you have two SDVO LVDS, but are they the same resolution? > Thanks, Keith and Adam. Yes, I hope I'll have the result tomorrow. Adam, according to the patch the information you want is an output from SDVO_CMD_GET_LVDS_PANEL_INFORMATION. If it's right I can post it tomorrow morning as I've already printed it after you suggested me this command. I should also say that SDVO_CMD_SET_LVDS_PANEL_INFORMATION is also work: I sent a byte to force 24-bit LVDS mode and it was set properly. As of configuration: yes, there're two monitors with the same resolution, 800x600 at 60Hz, connected via 24-bit LVDS (AFAIK SPWG format) to i945GME chipset through Chrontel SDVO converters. As I said before, unfortunately, current BIOS doesn't support OpRegion so it seems there's no access to VBT. > - ajax > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/intel-gfx/attachments/20111128/5188852a/attachment-0001.htm>
