On 06/21/2017 01:50 PM, Lucas Stach wrote:
The fbdev emulation in the imx-drm driver defaults to 16bpp. If you want
to change this you need to provide the module parameter
"legacyfb_depth=32".
Debian GNU/Linux 8 edelin ttymxc2
edelin login: root
Password:
Linux edelin 4.9.7-EK20170621 #1 SMP Wed Jun 21 15:23:57 CEST 2017 armv7l
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
root@edelin:~# fbset
mode "1280x800"
geometry 1280 800 1280 800 16
timings 0 0 0 0 0 0 0
accel true
rgba 5/11,6/5,5/0,0/0
endmode
root@edelin:~# cat /proc/cmdline
console=ttymxc2,115200 rootwait noswap ip=none noinitrd rootfstype=nilfs2 \
> root=/dev/mmcblk1p3 fec.macaddr=0x7a,0x3f,0x03,0xe3,0xa2,0xff \
> system_rev=0xe3600000 system_serialnr=0x00000000 \
> lcd_type=am1280800n3tz fastboot quiet loglevel=3 console=tty0 \
> video=mxcfb0:dev=ldb,if=RGB24,bpp=32 \
> fbmem=32M vmalloc=400M imx-drm.legacyfb_depth=32
As you can see imx-drm.legacy_depth=32 is passed to the kernel from
bootloader.
The CONFIG for FrameBuffer Emulation with DRM and HELPERS are enabled.
But fbset is telling me 16 bpp... :-(
Any help?
--
Eurek s.r.l. |
Electronic Engineering | http://www.eurek.it
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