On Wed, Apr 10, 2019 at 1:51 PM Dominik 'Rathann' Mierzejewski <domi...@greysector.net> wrote: > > On Wednesday, 10 April 2019 at 13:33, Patrik Jakobsson wrote: > > On Wed, Apr 10, 2019 at 1:18 PM Dominik 'Rathann' Mierzejewski > > <domi...@greysector.net> wrote: > > > > > > On Wednesday, 10 April 2019 at 11:08, Hans de Goede wrote: > > > > On 10-04-19 11:00, Patrik Jakobsson wrote: > > > > > On Wed, Apr 10, 2019 at 9:27 AM Hans de Goede <hdego...@redhat.com> > > > > > wrote: > > > > > > On 09-04-19 21:31, Dominik 'Rathann' Mierzejewski wrote: > > > > > > > On Tuesday, 09 April 2019 at 16:44, Hans de Goede wrote: > > > > > > > > On 09-04-19 14:05, Patrik Jakobsson wrote: > > > [...] > > > > > > > > > I'm not totally against this but not sure about the > > > > > > > > > consequences. Is > > > > > > > > > there perhaps a better dmi string to match against? > > > > > > > > > > > > > > > > No there are no better DMI strings to match against I'm afraid. > > > > > > > > > > > > > > I did load default settings in BIOS setup and there's no change in > > > > > > > behaviour. LVDS gets detected as connected: > > > > > > > $ cat /sys/class/drm/card0-LVDS-1/status > > > > > > > connected > > > > > > > > > > > > > > Only VGA output is physically connected at the moment. > > > > > > > > > > > > To be clear what Dominik means here is that he has a VGA monitor > > > > > > connected. There is no LVDS panel in this device at all. > > > > > > > > > > Thanks for testing. I dusted off my DN2800MT and tried turning LVDS > > > > > on/off in the BIOS. With LVDS disabled gma500 reports it as connected. > > > > > When LVDS is enabled in bios I instead get a connected eDP connector. > > > > > I'm starting to think that broken VBT parsing might be the actual > > > > > problem. > > > > > > > > Maybe, but I assume there are CedarView based laptops with LVDS panels > > > > which works, so I suspect this might be more of a bug in your BIOS. > > > > > > > > So what is the next step in debugging this? > > > > > > To add a small twist, I got an updated BIOS from the vendor to fix > > > another issue (https://bugzilla.kernel.org/show_bug.cgi?id=199117) > > > and the DMI string has changed to: "CDV W Series 05", so Hans' patch > > > no longer matches my machine. > > > > Hi Dominik, > > > > Do you have any option to enable/disable LVDS in your BIOS. The BIOS > > default might not be to disable LVDS since they apparently solved the > > issue on the command line anyway. If there is an option to turn it off > > but you still get the same problem, then it is possible that detection > > of "LVDS disabled" in the driver might be bad. > > No, there's no option to enable/disable LVDS. The machine is a NAS box > and doesn't have an LVDS physically. You can see the motherboard e.g. > here: https://youtu.be/ZYNQvZNGLsE?t=855 .
I've posted a patch: https://patchwork.freedesktop.org/patch/299821/ Previously we only checked for a child device and ignored the lvds config bits. Hopefully this fixes your problem. -Patrik > > Regards, > Dominik > -- > Fedora https://getfedora.org | RPM Fusion http://rpmfusion.org > There should be a science of discontent. People need hard times and > oppression to develop psychic muscles. > -- from "Collected Sayings of Muad'Dib" by the Princess Irulan _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
