https://bugzilla.kernel.org/show_bug.cgi?id=117131 --- Comment #10 from Jason Vas Dias <jason.vas.dias@xxxxxxxxx> --- OK, fine, I have to use FGLRX to use the Radeon as the primary display as I do under OEL7 (Linux 3.10) - what a terrific new open source radeon driver Linux 4.5 has. But I cannot even get the Intel card to go into graphics mode under Linux 4.5.0, owing to the failure of the radeon module to call that ACPI method . My xorg.conf now has no references to radeon driver : Section "ServerLayout" Identifier "X Radeon" Screen 0 "Screen0" 0 0 InputDevice "Mouse0" "CorePointer" InputDevice "Keyboard0" "CoreKeyboard" EndSection Section "Files" ModulePath "/usr/lib64/xorg/modules" FontPath "/usr/share/fonts/X11/misc/" FontPath "/usr/share/fonts/X11/TTF/" FontPath "/usr/share/fonts/X11/OTF/" FontPath "/usr/share/fonts/X11/Type1/" FontPath "/usr/share/fonts/X11/100dpi/" FontPath "/usr/share/fonts/X11/75dpi/" EndSection Section "InputDevice" Identifier "Keyboard0" Driver "evdev" EndSection Section "InputDevice" Identifier "Mouse0" Driver "synaptics" Option "Protocol" "auto" Option "Device" "/dev/input/mice" EndSection Section "Monitor" Identifier "Monitor0" VendorName "Monitor Vendor" ModelName "Monitor Model" Option "DPMS" "true" EndSection Section "Device" Identifier "Intel" Screen 0 Driver "intel" BusID "PCI:0:2:0" EndSection Section "Screen" Identifier "Screen0" Device "Intel" Monitor "Monitor0" SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection Now, I boot only with the 'i915.modeset=1' kernel boot parameter . I do : $ dmesg -c >/var/log/dmesg-4.5.0.boot.log # available on request $ export DISPLAY=:0 $ Xorg -logverbose 7 :0 vt04 & (sleep 2; xterm &) Now the X-server gets a segmentation violation in the xf86-video-intel driver, and the following dmesgs are generated : $ dmesg [ 121.166547] [drm] probing gen 2 caps for device 8086:c01 = 261ad03/e [ 121.167141] [drm] PCIE gen 3 link speeds already enabled [ 121.171391] [drm] PCIE GART of 2048M enabled (table at 0x00000000002E8000). [ 121.172068] radeon 0000:01:00.0: WB enabled [ 121.172638] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000100000c00 and cpu addr 0xffff880414eb5c00 [ 121.173232] radeon 0000:01:00.0: fence driver on ring 1 use gpu addr 0x0000000100000c04 and cpu addr 0xffff880414eb5c04 [ 121.173821] radeon 0000:01:00.0: fence driver on ring 2 use gpu addr 0x0000000100000c08 and cpu addr 0xffff880414eb5c08 [ 121.174409] radeon 0000:01:00.0: fence driver on ring 3 use gpu addr 0x0000000100000c0c and cpu addr 0xffff880414eb5c0c [ 121.174990] radeon 0000:01:00.0: fence driver on ring 4 use gpu addr 0x0000000100000c10 and cpu addr 0xffff880414eb5c10 [ 121.175941] radeon 0000:01:00.0: fence driver on ring 5 use gpu addr 0x0000000000075a18 and cpu addr 0xffffc90000435a18 [ 121.196617] radeon 0000:01:00.0: fence driver on ring 6 use gpu addr 0x0000000100000c18 and cpu addr 0xffff880414eb5c18 [ 121.197169] radeon 0000:01:00.0: fence driver on ring 7 use gpu addr 0x0000000100000c1c and cpu addr 0xffff880414eb5c1c [ 121.344986] [drm] ring test on 0 succeeded in 2 usecs [ 121.345536] [drm] ring test on 1 succeeded in 1 usecs [ 121.346090] [drm] ring test on 2 succeeded in 1 usecs [ 121.346659] [drm] ring test on 3 succeeded in 4 usecs [ 121.347202] [drm] ring test on 4 succeeded in 2 usecs [ 121.524819] [drm] ring test on 5 succeeded in 2 usecs [ 121.525345] [drm] UVD initialized successfully. [ 121.635907] [drm] ring test on 6 succeeded in 13 usecs [ 121.636449] [drm] ring test on 7 succeeded in 4 usecs [ 121.636978] [drm] VCE initialized successfully. [ 121.637570] f 0#2: signaled from fence_wait [ 121.638109] [drm] ib test on ring 0 succeeded in 0 usecs [ 121.638641] f 1#2: signaled from fence_wait [ 121.639152] [drm] ib test on ring 1 succeeded in 0 usecs [ 121.639722] f 2#2: signaled from fence_wait [ 121.640233] [drm] ib test on ring 2 succeeded in 0 usecs [ 121.640801] f 3#2: signaled from fence_wait [ 121.641313] [drm] ib test on ring 3 succeeded in 0 usecs [ 121.641878] f 4#2: signaled from fence_wait [ 121.642404] [drm] ib test on ring 4 succeeded in 0 usecs [ 122.295105] f 5#4: signaled from fence_wait [ 122.295672] [drm] ib test on ring 5 succeeded [ 122.797067] f 6#4: signaled from fence_wait [ 122.797648] [drm] ib test on ring 6 succeeded [ 123.299048] f 7#4: signaled from fence_wait [ 123.299662] [drm] ib test on ring 7 succeeded [ 123.387817] device: 'vcs4': device_add [ 123.387832] PM: Adding info for No Bus:vcs4 [ 123.387875] device: 'vcsa4': device_add [ 123.387893] PM: Adding info for No Bus:vcsa4 [ 123.400978] Xorg (4385) used greatest stack depth: 12016 bytes left [ 129.273612] ACPI Error: No handler for Region [EC81] (ffff88041d8d9bd0) [EmbeddedControl] (20160108/evregion-166) [ 129.274317] ACPI Error: Region EmbeddedControl (ID=3) has no handler (20160108/exfldio-299) [ 129.275027] ACPI Error: Method parse/execution failed [\_SB.PCI0.PEG0.PEGP.SGOF] (Node ffff88041d8fca50), AE_NOT_EXIST (20160108/psparse-542) [ 129.275779] ACPI Error: Method parse/execution failed [\_SB.PCI0.PEG0.PEGP._OFF] (Node ffff88041d8fce88), AE_NOT_EXIST (20160108/psparse-542) [ 129.276495] ACPI Error: Method parse/execution failed [\_SB.PCI0.GFX0.ATPX] (Node ffff88041d9034b0), AE_NOT_EXIST (20160108/psparse-542) [ 129.277229] failed to evaluate ATPX got AE_NOT_EXIST It seems even when I specify Intel driver should be used, the Intel driver is still hooking into the Radeon driver which initiates its incorrect ACPI transaction. Must I remove the radeon driver from the kernel completely in order to get my display into graphics mode, in order to work around the buggy radeon driver ? -- You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel