Hi Alan,

first: thanks a lot for your work to bring support for GMA500 to mainline kernel!

My problem: with the current gma500_gfx driver of kernel 3.3.0-rc1 (pulled git yesterday 2012-01-27), the X-server is only shown in the top half of the screen after booting on my fit-pc2 [1]. The bottom half keeps the last output of the console. During booting the console is shown on the complete screen in the correct monitor resolution.

I found a simple workaround: I only have to "stop lightdm" and do "start lightdm" afterwards. (same works with gdm)

But maybe, you are interested in this bug and/or I can provide you some information to fix this. Personally, I have no idea to look for :-(

Please let me know, if I could help examining this issue.

Thanks,

Alexander

my system:

- fit-pc2: Intel(R) Atom(TM) CPU Z530 @ 1.60GHz - Monitor connected via DVI through HDMI connector to the fit-pc2 - Resolution 1440x900 (this is autodetected! in older staging versions I had to add 'video=DVI-D-1:1440x900' to the command line) - kernel: Linux ab-fit 3.3.0-rc1+ #14 SMP PREEMPT Fri Jan 27 07:45:50 CET 2012 i686 i686 i386 GNU/Linux - kernel driver: drivers/gpu/drm/gma500/ - Distribution: Ubuntu 11.10 - X.Org X Server 1.10.4, fbdev driver

extract from /var/log/Xorg.0.log

[ 35.636] (II) Module fbdevhw: vendor="X.Org Foundation" [ 35.636] compiled for 1.10.4, module version = 0.0.2 [ 35.636] ABI class: X.Org Video Driver, version 10.0 [ 35.637] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so [ 35.637] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so [ 35.637] (**) FBDEV(0): claimed PCI slot 0@0:2:0 [ 35.637] (II) FBDEV(0): using default device [ 35.638] (==) FBDEV(0): Depth 24, (==) framebuffer bpp 32 [ 35.638] (==) FBDEV(0): RGB weight 888 [ 35.638] (==) FBDEV(0): Default visual is TrueColor [ 35.638] (==) FBDEV(0): Using gamma correction (1.0, 1.0, 1.0) [ 35.638] (II) FBDEV(0): hardware: psbfb (video memory: 7200kB) [ 35.638] (II) FBDEV(0): checking modes against framebuffer device... [ 35.639] (II) FBDEV(0): checking modes against monitor... [ 35.639] (--) FBDEV(0): Virtual size is 1440x900 (pitch 1440) [ 35.639] (**) FBDEV(0): Built-in mode "current" [ 35.639] (==) FBDEV(0): DPI set to (96, 96) [ 35.639] (II) Loading sub module "fb" [ 35.640] (II) LoadModule: "fb" [ 35.642] (II) Loading /usr/lib/xorg/modules/libfb.so [ 35.727] (II) Module fb: vendor="X.Org Foundation" [ 35.727] compiled for 1.10.4, module version = 1.0.0 [ 35.727] ABI class: X.Org ANSI C Emulation, version 0.4 [ 35.727] (**) FBDEV(0): using shadow framebuffer [ 35.727] (II) Loading sub module "shadow" [ 35.727] (II) LoadModule: "shadow" [ 35.727] (II) Loading /usr/lib/xorg/modules/libshadow.so [ 35.767] (II) Module shadow: vendor="X.Org Foundation" [ 35.767] compiled for 1.10.4, module version = 1.1.0 [ 35.767] ABI class: X.Org ANSI C Emulation, version 0.4 [ 35.767] (==) Depth 24 pixmap format is 32 bpp [ 36.096] (==) FBDEV(0): Backing store disabled [ 36.097] (==) FBDEV(0): DPMS enabled

extract from /var/log/kern.log

[ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.3.0-rc1+ root=UUID=3132d439-0340-4405-a73a-824b8cd5893a ro acpi_osi=Linux acpi_backlight=vendor acpi_skip_timer nomodeset

[ 6.243443] gma500 0000:00:02.0: setting latency timer to 64 [ 6.502413] gma500 0000:00:02.0: Found no modes on the lvds, ignoring the LVDS [ 6.889748] gma500 0000:00:02.0: allocated 1440x900 fb [ 6.890041] fbcon: psbfb (fb0) is primary device [ 7.163419] Console: switching to colour frame buffer device 180x56 [ 7.177899] fb0: psbfb frame buffer device [ 7.177987] drm: registered panic notifier [ 7.178092] [drm] Initialized gma500 1.0.0 2011-06-06 for 0000:00:02.0 on minor 0

[1] http://www.fit-pc.com/web/fit-pc/fit-pc2-specifications/