On Mon, 2011-05-30 at 11:20 -0400, Jan Skowron wrote: > I am writing to ask: which exact parameter of a graphics card decides > about the maximal resolution card can handle in 3d accelerated mode > (needed for Gnome 3)? > I couldn't find this on the Gnome 3 web page. Could you add a link to > such information in the FAQ section where talking about the graphics > requirements?
It is currently problematic; simply put - GNOME3 [specifically mutter?] has issues with multiple displays. mutter does not support multiple X11 screens <https://bugzilla.gnome.org/show_bug.cgi?id=648156> If you have a reasonably current nVidia adapter you can get 'working' multi-head using the nvidia-settings application using TwinView. See my report @ <http://mail.gnome.org/archives/gnome-shell-list/2011-May/msg00549.html> This issue is frustrating because it is nearly impossible to figure out even what *should* work. My previous laptop had an Intel 945GM video adapter and suffered from just the issue you describe - it would accelerate only up to the resolution of the internal display [how stupid is that?] Another issue I currently have is that the nvidia-settings app is too rigid. My projector will scale [from its native XGA] to match the resolution of the internal display - but nvidia-settings will not do that [the previous GNOME display widget worked fine]. I have to drop the internal resolution to XGA [Ugh!] to get Mirror-Mode to work. Diagnosing and working on these issues is extremely irritating and time consuming. > As a scientist I can tell that use of an external monitor with a > laptop is essential to my work. The same is true for development. > When I am plugging the projector in > before a lecture I am not rebooting my system of course. Rebooting should not be necessary anymore; I haven't had to do that for years. But getting the external display fired up can be challanging. > But the > resolution of the desktop suddenly increases from 1280 to grater than > 2048px. This can create an unintended mess in Gnome 3 since, as I have > heard, many (most) common graphics card does not have power to > accelerate more than > this. I'd imagine anything less than three years old should be fine with accelerating those resolutions. Higher end cards up to five years old should also be OK. > Plugging external monitor without reboot is a very common use > case, and Gnome 3 cannot handle this Yes, it can. But the display management software is lacking in invoking that ability. > correctly, so it would be nice to communicate this to users prior the > installation or potential disappointment. Additionally it will not > look good in the eyes of students -- potential future developers, > contributors, supporters, .... or not. GNOME3 is still in first-release; people should just *expect* these kinds of issues. Otherwise, IMHO, they have no business using first-release software. > I would like to have a way to check if my graphics card can handle > Gnome 3 on 2 displays, ie., with resolution grater than 2048px by > 2048px. What adapter do you have? [/sbin/lspci -v] _______________________________________________ gnome-shell-list mailing list gnome-shell-list@gnome.org http://mail.gnome.org/mailman/listinfo/gnome-shell-list
