I just received a wide screen with a 2560x1080 resolution but xrandr wasn’t allowing me to use it. The intel graphics specifications say that I should be able to go up to 4096xsomething so it’s a software problem.
Generate the informations you need with gtf
$ gtf 2560 1080 59.9
Takes only the numbers after the resolution name between quotes, so in
Modeline "2560x1080_59.90" 230.37 2560 2728 3000 3440 1080 1081 1084 1118 -HSync +Vsync
230.37 2560 2728 3000 3440 1080 1081 1084 1118 -HSync +Vsync
Now add the new resolution and make it available to your output (mine is HDMI2):
$ xrandr --newmode "2560x1080" 230.37 2560 2728 3000 3440 1080 1081 1084 1118 -HSync +Vsync $ xrandr --addmode HDMI2 2560x1080
You can now use this mode with arandr using the GUI or with xrandr by
xrandr --output HDMI1 --mode 2560x1080
You will need to set the new mode each time the system start. I added the 2 lines in my ~/.xsession file which starts stumpwm.
I had a problem with my 3 latests R430 Dell server which all have a PERC H730P Mini raid controller. The installer could barely works and slowly, and 2 servers were booting and crashing with FS corruption while the latest just didn’t boot and the raid was cleared.
It is a problem with a driver of the raid controller. I don’t understand exatly the problem but I found a fix.
From man page mfi(4)
A tunable is provided to adjust the mfi driver's behaviour when attaching to a card. By default the driver will attach to all known cards with high probe priority. If the tunable hw.mfi.mrsas_enable is set to 1, then the driver will reduce its probe priority to allow mrsas to attach to the card instead of mfi.
In order to install the system, you have to set hw.mfi.mrsas_enable=1 on the install media, and set this on the installed system before booting it.
There are two ways for that:
- if you use a usb media, you can mount it and edit /boot/loader.conf
- at the boot screen with the logo freebsd, choose 3) Espace to boot
set hw.mfi.mrsas_enable=1and boot
You will have to edit /boot/loader.conf to add the line on the installed system from the live system of the installer.
I have been struggling a long before understanding the problem. I hope this message could save time to somebody else.