2011/11/28 4ernov <4ernov at gmail.com> > 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 >> > > Hello, syslog of patched kernel (it was 2.6.36) is attached, it's so long, I think it's not good to paste it to the letter. Unfortunately, the command in patch isn't executed, it seems to return earlier, but as I said, I've got the results of SDVO_CMD_GET_LVDS_PANEL_INFORMATION which I gathered before. They are: 0x01 for SDVO_B 0x00 for SDVO_C After I set 24-bit mode bit the value for SDVO_C become 0x01, too. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/intel-gfx/attachments/20111129/d66ba25e/attachment-0001.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: syslog Type: application/octet-stream Size: 166475 bytes Desc: not available URL: <http://lists.freedesktop.org/archives/intel-gfx/attachments/20111129/d66ba25e/attachment-0001.obj>
