[Intel-gfx] i810 only partially usable

Felix Miata mrmazda at earthlink.net
Tue Oct 8 22:02:25 CEST 2013

On 2013-10-08 00:06 (GMT-0400) Felix Miata composed:

> Still broken:
> Linux gx110 3.11.3-3.gac1d7be-default #1 SMP Fri Oct 4 12:14:40 UTC 2013
> (ac1d7be) i686 i686 i386 GNU/Linux
> glamor-0.5.1-39.2.i586
> intel-gpu-tools-1.3-20.10.i586
> libdrm_intel1-2.4.46-121.1.i586
> libdrm2-2.4.46-121.1.i586
> vaapi-intel-driver-1.2.0-22.8.i586
> xf86-video-intel-2.99.903-88.2.i586
> xorg-x11-server-7.6_1.14.3-251.15.i586

Linux gx110 3.11.4-1.g40d7ca3-default #1 SMP Sat Oct 5 16:59:29 UTC 2013
(40d7ca3) i686 i686 i386 GNU/Linux

Turns out configuring a screen section in the old pre-KMS format enumerating 
desired/selectable modes solves the problem, even enabling virtal (aka KMS 
panning). However on exit from the X session back to the ttys, the default 
mode set on boot (neither vga= nor video= on {Grub Legacy} cmdline), or one 
that was set via vga= (video= is ignored), may or may not restored. When not, 
the ttys are left unusable from mismatch between font used and (no longer 
correct) rows/columns. Apparently the first X session following boot exits 
OK, but not a second.
"The wise are known for their understanding, and pleasant
words are persuasive." Proverbs 16:21 (New Living Translation)

  Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/

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