Re: Blank screen after boot with Radeon HD 5450

Sorry for the noise -- I hit send before I was finished formatting my
prior reply.

Maximilian Pichler <maxim.pichler@gmail.com> writes:

> If and when I get my hands on another monitor I'll definitely try it
> out. (Although ultimately it would be nice to get it working with this
> one, as it works fine under Linux. This is a Dell U2515H.)

Interesting, that's the same model I have.

> You may be able to get a higher resolution by decreasing the refresh rate:
>
> $ gtf 2560 1440 33
>
> # 2560x1440 @ 33.00 Hz (GTF) hsync: 48.44 kHz; pclk: 162.77 MHz
> Modeline "2560x1440_33.00" 162.77 2560 2688 2960 3360 1440 1441
> 1444 1468 -HSync +Vsync
>
> $ xrandr --newmode 2560x1440_33.00 162.77 2560 2688 2960 3360 1440
> 1441 1444 1468 -HSync +Vsync
> $ xrandr --addmode DVI-0 2560x1440_33.00
> $ xrandr --output DVI-0 --mode 2560x1440_33.00

Yes, that actually worked! I tried first at 50Hz and it did not, but
33Hz is working at 2560x1440 (but not in console however, I don't know
how to specify a different mode there, if it's even possible).

Thanks!

Allan