Hello Jonathan, There looks like genfb0 is on pci0 and genfb1 is on pci1. As seen in the dmesg output.
[ 1.017264] genfb0 at pci0 dev 1 function 0: vendor 1002 product 1309 (rev. 0x00) [ 1.017264] genfb0: framebuffer at 0xe0000000, size 1366x768, depth 32, stride 5632 [ 1.017264] genfb0: shadow framebuffer enabled, size 4224 KB [ 1.017264] wsdisplay0 at genfb0 kbdmux 1: console (default, vt100 emulation), using wskbd0 [ 1.017264] drm at genfb0 not configured [ 1.017264] genfb1 at pci1 dev 0 function 0: vendor 1002 product 6604 (rev. 0x00) Only genfb0 was assigned a framebuffer area. I think this is done via the gop command in the boot.cfg file. Isn't it possible to put aside a framebuffer to the genfb1 also? Riza On Fri, Oct 1, 2021 at 2:06 PM Jonathan A. Kollasch <[email protected]> wrote: > > On Fri, Oct 01, 2021 at 09:22:39AM +0300, Riza Dindir wrote: > > Hello All, > > > > I have NetBSD 9.2 and have disabled radeon on my machine. I am also using > > gop, set in the boot.cfg file. > > > > I wanted to reduce the brigntness of my laptops monitor. But i could not do > > it with with sysctl. > > > > I have an LCD monitor that i can connect via vga port. Can i use this > > monitor as the only monitor? Do not need to use the laptop monitor. This > > way i can reduce the brightness on the monitor. > > > > Regards > > Riza > > Without a full video driver, you will likely not have control of which > video output is used, or have control of the brightness of the internal > LCD.
