Description of problem: If I connect my laptop (a Lenovo T400s, http://www.smolts.org/client/show/pub_e98beafa-1ec5-4290-91df-777dedfc1be8) to my TV (a 32" Panasonic Viera) via a VGA cable, the highest resolution I can choose is XGA. I know however from connecting the TV to other laptops running Linux that it can successfully display 1366x768 and that it also communicates that resolution to the computer. Version-Release number of selected component (if applicable): 2.12.0-6.fc14 Output of xrandr: [liveuser@localhost ~]$ xrandr Screen 0: minimum 320 x 200, current 2464 x 900, maximum 8192 x 8192 LVDS1 connected 1440x900+1024+0 (normal left inverted right x axis y axis) 303mm x 190mm 1440x900 60.0*+ 50.0 1024x768 60.0 800x600 60.3 56.2 640x480 59.9 VGA1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm 1024x768 60.0* 800x600 60.3 56.2 848x480 60.0 640x480 59.9 HDMI1 disconnected (normal left inverted right x axis y axis) DP1 disconnected (normal left inverted right x axis y axis) HDMI2 disconnected (normal left inverted right x axis y axis) DP2 disconnected (normal left inverted right x axis y axis) DP3 disconnected (normal left inverted right x axis y axis)
May be related to bug 551920 (though occured with fc12), which contains also more output.
From a machine where you can successfully set the display to 13x7, please attach the output of 'xrandr --props' and make a note of what GPU is in that machine.
*** Bug 638770 has been marked as a duplicate of this bug. ***
(In reply to comment #1) > May be related to bug 551920 (though occured with fc12), which contains also > more output. (and to comment #3) > *** Bug 638770 has been marked as a duplicate of this bug. *** This bug had been reported in January as a regression. Both aforementioned tickets contain complementary and requested information. Have those been analysed? The list of bugs looks like much has happened, but essentially it was more a shifting around of tickets in the system. (In reply to comment #2) > From a machine where you can successfully set the display to 13x7, please > attach the output of 'xrandr --props' We have reported a malfunction, which seems to present over at least three releases (12-14). If I understand this right, you are asking now for diagnostic output where setting the screen resolution works correctly. Logically that would come from an older or non-RH distribution, which does not even necessarily contain "xrandr". I am afraid you ask for something users cannot afford. Are there any other diagnostics that can be provided from presently running systems (albeit without the ability to set external screen resolution correctly)? (In reply to comment #2) > and make a note of what GPU is in that machine. As far as I am concerned, no extra GPU is in my laptop. According to what I understand, my DELL Latitude D520 has an integrated Intel 950 graphics engine, part of Intenl 945GM Chipset. This seems to be no exchangeable part, and experts are probably more qualified than I to retreive the corresponding information from the DELL website.
Created attachment 457401 [details] "xrandr --props" output with external VGA (VGA1) connected, but not working I attach the requested "xrandr" output. Apparently it contains the four video resolutions (1024x768/60.0Hz, 800x600/60.3Hz*/56.2Hz, 848x480/60.0Hz, 640x480/59.9Hz), out of which only one (*) works. I am happy to run more diagnostics on my present system.
needinfo looks like it's provided. this is an f14 bug per the report. -- Fedora Bugzappers volunteer triage team https://fedoraproject.org/wiki/BugZappers
What I asked for was the output from a machine where 13x7 worked. The attached output does not show this. Please reopen if this still occurs with F15 or later.
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