I am experiencing odd behavior on chrome and firefox when viewing youtube in fullscreen, although the behavior is different on each browser.
On Firefox, whenever I view a YouTube video in a certain resolution, the video seems to be drawn on a canvas corresponding to the best resolution the video has and then resized (without stretching/preserving the original ratio) to the actual screen size. This causes the UI elements to be shrinked (making it hard to read the UI) or to be enlarged (and aliased). Furthermore, as the whole YouTube video is resized and not stretched the control bar is not on the bottom of the screen. Note that the video is drawn on the best resolution the video has and not the current resolution.
Chrome has very similar, but less severe problems, the YouTube video is correctly drawn when the highest resolution is in HD, but whenever I watch a SD video the UI elements are enlarged, but NOT aliased and the control bars are at their rightful positions.
Note: I am running Ubuntu 12.10 with gnome, two screens:
- A 1680x1050 monitor connected with a DVI cable;
- A 1920x1080 Full-HD tv connected with a HDMI cable.
Both are connected the same video card: a geforce 210. The proprietary drivers are installed.
I am asking on askubuntu as this problem does not occur on either mac or windows, so it seems to be a linux/ubuntu problem. I also tried flash-aid, which did not seem to help.
Edit: The aliasing and scaling issues of firefox seems to be caused by the dual monitor set-up. When I disable my TV the firefox problems become completely similar to the problems under chrome.