Hi Rick,
On Sat, Jun 25, 2016 at 02:20:17AM -0700, Rick Thomas wrote:
>
> On Jun 20, 2016, at 5:57 AM, Mathieu Malaterre <ma...@debian.org> wrote:
>
> > Control: tags -1 moreinfo
> >
<snip>
> ============================== begin transcript =======================
> root@bigal:~# dmesg > /tmp/dmesg-out-pre-fbset
> root@bigal:~# fbset
>
> mode "1680x1050"
> geometry 1680 1050 1680 1050 32
> timings 0 0 0 0 0 0 0
> accel true
> rgba 8/16,8/8,8/0,0/0
> endmode
Since the fb device is now emulated by drm it has some limitations, and
one of them is that you can not change the bpp value. fbset reported here
that you have a bpp of 32.
>
> root@bigal:~# fbset 1680x1050
> Unknown video mode `1680x1050'
>
> root@bigal:~# fbset 1600x1200-66
> ioctl FBIOPUT_VSCREENINFO: Invalid argument
>From /etc/fb.modes this mode has a bpp of 8 and so drm rejects the
request with an error of "Invalid argument".
Please add the following in your /etc/fb.modes:
mode "1600x1200-75"
# D: 202.50 MHz, H: 93.750 kHz, V: 75.00 Hz
geometry 1600 1200 1600 1200 32
timings 4938 304 64 46 1 192 3
endmode
and then try "fbset 1600x1200-75". I am hoping that your display will
support this.
--
Regards
Sudip
