Comment 45 for bug 141146

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Jonathan Rogers (jonner) wrote :

I can confirm this bug. I've been using Xorg's "radeon" driver from xserver-xorg-video-ati in Feisty to display on an LCD TV. My situation is complicated by two things. First, like a lot TVs (as opposed to monitors), mine reports incorrect EDID information over VGA and DVI. It claims to have a size of 4cm x 3cm, with is not only impossibly small, but the wrong aspect ratio, since it's a 16:9 TV. Second, since I'm running MythTV, which misuses the DPI information and always wants 100x100 DPI regardless of actual display size, I had to manufacture a DisplaySize that is different from both the actual dimensions and what the TV reports.

Just yesterday, I upgraded to Gutsy and discovered that text in a terminal emulator was unreadably small (about 1 to 2 pixels high) and video was scaled to a narrow strip an inch or two high in the middle of the screen. Though X still reported that it was using 100x100 DPI in "/var/log/Xorg.0.log", xdpyinfo reported 52x6 DPI. So, apparently, X lies about the DPI in the log, ignoring the explicitly set DisplaySize for the DPI reported to clients. If I use the same /etc/X11/xorg.conf, but run "X -dpi 100", both the log and xdpyinfo report 100x100 DPI.