Thomas, Thank you for your reply. >> Table 10 in the following document says that 1440x900@60Hz is >> supported: >> https://www.intel.com/content/dam/support/us/en/documents/motherboards/server/s5520ur/sb/e44031012_s5520ur_s5520urt_tps_r1_9.pdf > > That manual says that the resolution is only supported with at most > 24-bit colors. The old X code still supports that to some extend, but > modern userspace doesn't. How can I check for sure whether I am using 24 or 32 bits per pixel ? >> so in particular the chip is said to be a G200e, not the G200SE-A >> that the kernel module seems to be interpreting it as. > It actually is the G200SE-A. It's just named differently by lspci. The > PCI device id should be 0x0522. It is indeed 0x0522. > So the old kernel already did the right thing. (but if I understand the situation right Xorg didn't ?) > You can do > > cat /sys/class/drm/card1-VGA-1/modes > > on the old and new kernel. With a monitor connector, it will tell you > the supported resolutions. With the new kernel and the unmodified mgag200 module it tells me that 1440x900 is not on the list - but Xorg still lists it under Settings->Display (and Wayland doesn't). With the increased bandwidth module in place it tells me 1440x900 is on the list. I think this is as you expect as far as the kernel rather than Xorg is concerned. Thanks, Roger.
