How to fix framebuffer resolution for external monitor?
With Xubuntu 18.10, the framebuffer has the proper resolution only for the built-in screen of my laptop (1366×768). When using an external monitor through HDMI (1280×1024), the Xubuntu logo at shutdown has a wrong aspect ratio (it is too tall) but even worse, I cannot see the bottom lines in the framebuffer, which makes working on the console very difficult.
I tried to change GRUB settings (something along https://forums.fedoraforum.org/showthread.php?306271-uEFI-grub2-efi-nVidia-high-res-efifb-(non-nouveau)-virtual-consoles) but it had zero effect.
I’m willing to accept that I have to change the configuration every time I switch between internal and external screen, but how does one change the resolution of the framebuffer in the first place?
multiple-monitors display-resolution framebuffer
asked Jan 6 at 11:24
Torsten BrongerTorsten Bronger
12015
add a comment |
With Xubuntu 18.10, the framebuffer has the proper resolution only for the built-in screen of my laptop (1366×768). When using an external monitor through HDMI (1280×1024), the Xubuntu logo at shutdown has a wrong aspect ratio (it is too tall) but even worse, I cannot see the bottom lines in the framebuffer, which makes working on the console very difficult.
I tried to change GRUB settings (something along https://forums.fedoraforum.org/showthread.php?306271-uEFI-grub2-efi-nVidia-high-res-efifb-(non-nouveau)-virtual-consoles) but it had zero effect.
I’m willing to accept that I have to change the configuration every time I switch between internal and external screen, but how does one change the resolution of the framebuffer in the first place?
multiple-monitors display-resolution framebuffer
asked Jan 6 at 11:24
Torsten BrongerTorsten Bronger
12015
Have you tried to set the resolution with xrandr? Tryxrandr --output HDMI-1 --mode 1280x1024
– hmayag
Jan 6 at 13:45
xrandr has no effect, AFAICS. But does it control the framebuffer consoles at all?
– Torsten Bronger
Jan 6 at 20:36
There are 2 entries in the man page of xrandr--fband--fbmm
– hmayag
Jan 6 at 21:12
add a comment |
With Xubuntu 18.10, the framebuffer has the proper resolution only for the built-in screen of my laptop (1366×768). When using an external monitor through HDMI (1280×1024), the Xubuntu logo at shutdown has a wrong aspect ratio (it is too tall) but even worse, I cannot see the bottom lines in the framebuffer, which makes working on the console very difficult.
I tried to change GRUB settings (something along https://forums.fedoraforum.org/showthread.php?306271-uEFI-grub2-efi-nVidia-high-res-efifb-(non-nouveau)-virtual-consoles) but it had zero effect.
I’m willing to accept that I have to change the configuration every time I switch between internal and external screen, but how does one change the resolution of the framebuffer in the first place?
multiple-monitors display-resolution framebuffer
asked Jan 6 at 11:24
Torsten BrongerTorsten Bronger
12015
With Xubuntu 18.10, the framebuffer has the proper resolution only for the built-in screen of my laptop (1366×768). When using an external monitor through HDMI (1280×1024), the Xubuntu logo at shutdown has a wrong aspect ratio (it is too tall) but even worse, I cannot see the bottom lines in the framebuffer, which makes working on the console very difficult.
I tried to change GRUB settings (something along https://forums.fedoraforum.org/showthread.php?306271-uEFI-grub2-efi-nVidia-high-res-efifb-(non-nouveau)-virtual-consoles) but it had zero effect.
I’m willing to accept that I have to change the configuration every time I switch between internal and external screen, but how does one change the resolution of the framebuffer in the first place?
multiple-monitors display-resolution framebuffer
multiple-monitors display-resolution framebuffer
asked Jan 6 at 11:24
Torsten BrongerTorsten Bronger
12015
asked Jan 6 at 11:24
Torsten BrongerTorsten Bronger
12015
edited Jan 6 at 12:30
Torsten Bronger
asked Jan 6 at 11:24
Torsten BrongerTorsten Bronger
12015
asked Jan 6 at 11:24
Torsten BrongerTorsten Bronger
12015
asked Jan 6 at 11:24
Torsten BrongerTorsten Bronger
12015
12015
Have you tried to set the resolution with xrandr? Tryxrandr --output HDMI-1 --mode 1280x1024
– hmayag
Jan 6 at 13:45
xrandr has no effect, AFAICS. But does it control the framebuffer consoles at all?
– Torsten Bronger
Jan 6 at 20:36
There are 2 entries in the man page of xrandr--fband--fbmm
– hmayag
Jan 6 at 21:12
add a comment |
Have you tried to set the resolution with xrandr? Tryxrandr --output HDMI-1 --mode 1280x1024
– hmayag
Jan 6 at 13:45
xrandr has no effect, AFAICS. But does it control the framebuffer consoles at all?
– Torsten Bronger
Jan 6 at 20:36
There are 2 entries in the man page of xrandr--fband--fbmm
– hmayag
Jan 6 at 21:12
Have you tried to set the resolution with xrandr? Try
xrandr --output HDMI-1 --mode 1280x1024– hmayag
Jan 6 at 13:45
Have you tried to set the resolution with xrandr? Try
xrandr --output HDMI-1 --mode 1280x1024– hmayag
Jan 6 at 13:45
xrandr has no effect, AFAICS. But does it control the framebuffer consoles at all?
– Torsten Bronger
Jan 6 at 20:36
xrandr has no effect, AFAICS. But does it control the framebuffer consoles at all?
– Torsten Bronger
Jan 6 at 20:36
There are 2 entries in the man page of xrandr
--fb and --fbmm– hmayag
Jan 6 at 21:12
There are 2 entries in the man page of xrandr
--fb and --fbmm– hmayag
Jan 6 at 21:12
add a comment |
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Have you tried to set the resolution with xrandr? Try
xrandr --output HDMI-1 --mode 1280x1024– hmayag
Jan 6 at 13:45
xrandr has no effect, AFAICS. But does it control the framebuffer consoles at all?
– Torsten Bronger
Jan 6 at 20:36
There are 2 entries in the man page of xrandr
--fband--fbmm– hmayag
Jan 6 at 21:12