Am Montag, den 07.07.2014, 17:40 -0400 schrieb Alex Deucher:
On Sat, Jul 5, 2014 at 3:42 AM, Paul Menzel wrote:
connecting a VGA monitor to the internal graphics device of the ASRock E350M1 [1], the brightness is much too high.
[…]
It sounds like the DAC bg/adj values are wrong on that board (they are tuned on a per board basis and stored in the bios). You might try a bios upgrade on the board if there is one available. If not, please file a bug (https://bugs.freedesktop.org) and attach a copy of your dmesg output, the vbios from the problematic board, and if possible the output of `radeonreg regs dce4`.
To get a copy of your vbios: (as root) (use lspci to get the bus id) cd /sys/bus/pci/devices/<pci bus id> echo 1 > rom cat rom > /tmp/vbios.rom echo 0 > rom
You can get radeonreg here: http://cgit.freedesktop.org/~airlied/radeontool/
Alex, thank you for your reply! The bug I filed was assigned the number 85469 [1].
Thanks,
Paul