Just try a 3.17 based kernel if you can. and make sure you have a new enough intel userspace driver. Dave. ----- Original Message ----- > From: "Michal Nazarewicz" <mina86@xxxxxxxxxx> > To: airlied@xxxxxxxxxx > Cc: intel-gfx@xxxxxxxxxxxxxxxxxxxxx > Sent: Saturday, 8 November, 2014 5:55:00 AM > Subject: drm-i915-mst + Ubuntu 14.04 + HP 840 > > Hi Dave, > > I'm trying to get your drm-i915-mst-v3.16[1] branch applied on top of > Ubuntu[2] kernel[3] to get HP's 840 notebook to handle two DPs port on > the docking station but I'm hitting some problems with your patches. Or > so I think. > > If I start and boot with the laptop connected to the docking station and > the screens, I'm getting BUGs (full dmesg attached) and X refuses to > start at all. E.g.: > > ------------------------ >8 ---------------------------------------- > [ 12.493151] [drm:intel_pipe_config_compare] *ERROR* mismatch in > adjusted_mode.crtc_clock (expected 119000, found 0) > [ 12.493171] WARNING: CPU: 0 PID: 61 at > /home/mpn/code/linux/drivers/gpu/drm/i915/intel_display.c:10221 > check_crtc_state+0x235/0x350 [i915]() > > [ 12.503272] [drm:intel_pipe_config_compare] *ERROR* mismatch in > adjusted_mode.crtc_clock (expected 119000, found 0) > [ 12.503284] WARNING: CPU: 0 PID: 61 at > /home/mpn/code/linux/drivers/gpu/drm/i915/intel_display.c:10221 > check_crtc_state+0x235/0x350 [i915]() > > [ 12.503449] [drm:intel_pipe_config_compare] *ERROR* mismatch in > adjusted_mode.crtc_clock (expected 119000, found 0) > [ 12.503460] WARNING: CPU: 0 PID: 61 at > /home/mpn/code/linux/drivers/gpu/drm/i915/intel_display.c:10221 > check_crtc_state+0x235/0x350 [i915]() > ------------------------ >8 ---------------------------------------- > > If I boot up with laptop disconnected from the docking station and > connect it later on, I'm getting the following errors: > > ------------------------ >8 ---------------------------------------- > [ 248.615216] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus > alignment > [ 248.629843] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus > alignment > [ 248.630412] acpi PNP0501:00: Still not present > [ 252.261562] usb 3-1: new SuperSpeed USB device number 5 using xhci_hcd > [ 252.277626] usb 3-1: New USB device found, idVendor=0424, idProduct=5534 > [ 252.277630] usb 3-1: New USB device strings: Mfr=2, Product=3, > SerialNumber=0 > [ 252.277632] usb 3-1: Product: USB5534B > [ 252.277633] usb 3-1: Manufacturer: SMSC > [ 252.278047] hub 3-1:1.0: USB hub found > [ 252.278067] hub 3-1:1.0: 4 ports detected > [ 252.517255] usb 2-1: new high-speed USB device number 16 using xhci_hcd > [ 252.645530] usb 2-1: New USB device found, idVendor=0424, idProduct=2134 > [ 252.645534] usb 2-1: New USB device strings: Mfr=1, Product=2, > SerialNumber=0 > [ 252.645536] usb 2-1: Product: USB2134B > [ 252.645538] usb 2-1: Manufacturer: SMSC > [ 252.645970] hub 2-1:1.0: USB hub found > [ 252.646024] hub 2-1:1.0: 4 ports detected > [ 252.693505] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus > alignment > [ 252.704220] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus > alignment > [ 252.704478] acpi PNP0501:00: Still not present > ------------------------ >8 ---------------------------------------- > > Needless to say, “xrandr -q” did not detect any of the DisplayPort > screens. > > I was wondering if you had any idea what could be a problem? Perhaps > there is a newer version of your patchset that I should try? > > [1] http://cgit.freedesktop.org/~airlied/linux/log/?h=drm-i915-mst-v3.16 > [2] Which probably wouldn't by your choice of a distro. ;) > [3] > http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-utopic.git;a=shortlog;h=refs/heads/master > > -- > Best regards, _ _ > .o. | Liege of Serenely Enlightened Majesty of o' \,=./ `o > ..o | Computer Science, Michał “mina86” Nazarewicz (o o) > ooo +--<mpn@xxxxxxxxxx>--<xmpp:mina86@xxxxxxxxxx>--ooO--(_)--Ooo-- > _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
