I'm in Europe (at least until the 23rd...) so let me know your address. My motivation is to get them working reliably under Fedora 23 x86 to drive a Dell UP2414Q 4k monitor, where currently my father's PC is experiencing regular freezes. So if you would like the loan of a UP2414Q monitor to go with the cards, let me know too. (The UP2414Q is an interesting monitor to drive since it appears as two 1920x2160 screens over a single DP1.2 connection when driven at 60Hz. It has often tickled bugs in video card drivers on both Windows and Linux; and the monitor's own buggy firmware doesn't help.) Anyone else interested in cards or monitor? -- Ed Avis <eda at waniasset.com>
Hi, On 07-06-16 12:13, Ed Avis wrote:> I'm in Europe (at least until the 23rd...) so let me know your address.Cool, I'll send you a private mail with my address.> My motivation is to get them working reliably under Fedora 23 x86 to drive > a Dell UP2414Q 4k monitor, where currently my father's PC is experiencing > regular freezes. So if you would like the loan of a UP2414Q monitor to go > with the cards, let me know too. > > (The UP2414Q is an interesting monitor to drive since it appears as two > 1920x2160 screens over a single DP1.2 connection when driven at 60Hz. > It has often tickled bugs in video card drivers on both Windows and Linux; > and the monitor's own buggy firmware doesn't help.)Hmm, that monitor will require mst support: https://en.wikipedia.org/wiki/DisplayPort#Multiple_displays_on_single_DisplayPort_connector Which is currently not implemented in the nouveau driver. There are plans to support this eventually, but that is still at least half a year away. For now my advice would be to use either Intel integrated graphics on a mobo with a dp connector, or maybe an ati add-in card. Note I do not know what the status of mst support on ati is, you should double check that before buying a card. Or try your luck with the nvidia binary driver. Regards, Hans
Sorry I wasn't clear about the Dell UP2414Q monitor. You are right that driving it at 4k requires MST support and this isn't currently supported by Nouveau. So instead I am driving it at only 30Hz which should be a straight- forward setup. However, this still crashes regularly, for example when opening a pull-down menu in Libreoffice and a moment later clicking to close and reopen the same menu. (The PC is not in front of me so it is hard for me to investigate further at the moment.) So if any developer(s) would like to borrow a UP2414Q monitor to accompany a donation of the NVS 310 or 510 video cards, I will be happy to pay postage both ways. If you can reproduce and fix the bug, you can keep the monitor. -- Ed Avis <eda at waniasset.com>