Fantastic work so far, and infinite thanks for treating us as a real platform! I hope there's a halo effect of perceived legitimacy from this.
I'm not actually in the beta, but perhaps some of this will be helpful nonetheless. :) Running Arch 64-bit with KDE, on a GTX 460 with blob drivers.
- Chat windows with activity don't set the URGENT hint (i.e., flash in the taskbar). I do have the right knob twiddled in settings.
- All Steam windows have the same window title, "Steam", regardless of what actually shows in their titlebars.
- Steam notifications appear on the bottom-right of my right monitor, instead of above the panel which resides entirely on my left monitor.
- There is no Steam tray icon, which is a tad problematic when Steam starts without showing its main window. So far I've been clicking a "friend online" notification to get to it.
(WORKAROUND: Launch steam with `steam://open/games` instead of `steam://open/store`.)
- Numpad Enter doesn't send a message in chat windows. It doesn't seem to work in dialogs, either, but I don't know if that's the particular key or a lack of default button.
- Tooltips seem to be entirely separate windows. I have a desktop effect that dims inactive windows, so this results in the main Steam window flickering between dim and lit as I mouseover games or users or anything else that produces tooltips. (This effect comes with both KDE and Compiz, so I'm not doing anything particularly outlandish here.) Menus have the same issue.
- Fonts look a little out of place. Based on some commentary on the Arch package, I assume they're fonts that ship with Windows? Using my desktop settings would be polite and appreciated. :)
- Having said that, I just tabbed back to Steam and now most prose in the Library is suddenly showing in my default monospace font. Haha, what. This has happened once or twice since, too; not sure when or why.
- This inverted backwards mouse cursor is super weird. I get my regular pointing-finger cursor when hovering a link, but never my regular default cursor.
- Steam is no longer running, but the wacky mouse cursor keeps appearing very briefly, e.g. after I click a menu-button in Firefox until I move the mouse again.
(WORKAROUND: Set a default cursor theme for Gnome. See the Arch wiki[wiki.archlinux.org].)
- Something weird is going on with focus; I've had windows raise themselves (yeargh! please just set URGENT hint) and remove focus from wherever I was typing, yet the interrupting window didn't seem to receive keypresses either until I clicked on it.
- I "downloaded" Braid several times, and each time ended up with a completely empty install directory. Couple other Humble Bundle games had this same problem, but Aquaria downloaded and ran just fine.
- Team Fortress 2 doesn't appear in my library at all, even though I've owned it since beta.
- Few lingering references to Windows things that don't make any sense for Linux: "Enable DirectWrite" in Settings > Interface, offering to add shortcuts to my "start menu" when installing a game (or even my desktop, which doesn't so much exist in KDE 4, and which appears on a game's context menu too).
- The default audio input device is "PulseAudio Default", but I don't have PulseAudio installed. stderr gripes: "PulseAudio connect failed (used only for Mic Volume Control) with error: Access denied"
- As mentioned on the HN thread, creating four lingering things in my home directory is a bit excessive. Ideally Steam should follow the xdg guidelines.
- There's a large drop-shadow at the top of the Library, which looks lower than it's meant to be and makes the name of the first game a little hard to read.
- Videos in the embedded browser insist I need Flash, which Adobe is no longer developing for Linux. Time for <video> at last?
Also, screen handling reeeeally sucks. As mentioned elsewhere, Steam windows all appear in the center of my entire desktop area, which means they end up straddling both of my monitors. But when I tried Aquaria, the game changed my resolution to 800×600 on only one monitor, which turned my right monitor off entirely
and jammed all the windows that were on it, across every workspace, onto my left monitor. A few windows were even shoved most of the way off the left edge.
I know this is the status quo on Windows and up to the individual games rather than Valve, but a good many Linux users are really picky
about their window management, and having a program change my screen resolution and monitor layout without so much as asking comes across as extremely rude. The default res was hilariously low, anyway, so it's not like I was saved a trip to the video options. Please just use a window like everything else.
For what it's worth, Big Picture (which works beautifully) adapted to the native res of my left monitor without affecting my right one at all, which is as it should be. Mad props.