Clone screen for laptop + HD display 1366x768 (non-native edid option)
Submitted by Gašper Sedej
Assigned to Keith Packard @keithp
Description
Created attachment 89770 xorg commands and outputs
Hello!
I have laptop with "typical" 1366x768 resolution. When I connect to my HD monitor and use CLONE mode I get 1024x768. 1366x768 is not available [1].
Problem is that HD monitor does not report EDID mode for 1366x768. I can use command "xrandr --addmode HDMI1 1366x768" and get 1366x768 clone mode work fine [2].
I don't have to add modes on Windows 7 on same computer. 1366x768 clone works out of box when I plug HDMI cable[3]. Windows 7 also give me much more resolution options [4] than linux [5] for each display (LVDS and HDMI).
People on #intel-fgx irc suggested me that this is user-space problem, since driver list EDID modes that display gives. Kernel should not suggest mode that might not work. For additional resolution, user-space program should offer user additional resolutions.
I was asking over different irc channels and was suggested to file bug here.
In tests, I was using Ubuntu 12.04, but I checked also with Ubuntu 13.10 and 3.12 kernel. Issue is till present. Hardware: Intel i5, HD3000. Other info in attachment.
I would like to get laptop-native (1366x768) clone mode working out-of-box. I attached terminal output of xrandr including EDID.
[1] http://i.imgur.com/UdQo3Pph.jpg [2] http://i.imgur.com/uRekgjoh.jpg [3] http://i.imgur.com/NjlkKeHh.jpg [4] http://i.imgur.com/5zvO6Ayh.jpg [5] http://i.imgur.com/nW3y6oBh.jpg
Other images and full resolution http://imgur.com/a/kRjhG
just in case, some outputs
00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09)
LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
EDID:
00ffffffffffff0006afec2200000000
01130103802213780ac8959e57549226
0f505400000001010101010101010101
010101010101121b5642500026302018
340058c1100000180000000f00000000
00000000000000000020000000fe0041
554f0a202020202020202020000000fe
004231353658573032205632200a00c0
BACKLIGHT: 732 (0x000002dc) range: (0,4882)
Backlight: 732 (0x000002dc) range: (0,4882)
scaling mode: Full aspect
supported: None Full Center Full aspect
1366x768 60.0*+
1360x768 59.8 60.0
1024x768 60.0
800x600 60.3 56.2
640x480 59.9
HDMI1 connected 1920x1080+1366+0 (normal left inverted right x axis y axis) 1150mm x 650mm
EDID:
00ffffffffffff001e6d010001010101
02130103807341780acf74a3574cb023
09484ca1080081806140454031400101
010101010101023a801871382d40582c
45007e8a4200001e011d007251d01e20
6e2855007e8a4200001e000000fd003a
3e1e5310000a202020202020000000fc
004c472054560a202020202020200104
020326f14e101f841305140302122021
2215012615075009570767030c004000
b82de3050301011d8018711c1620582c
25007e8a4200009e011d008051d00c20
408035007e8a4200001e023a80187138
2d40582c45007e8a4200001e662150b0
51001b30407036007e8a4200001e0000
000000000000000000000000000000c9
Broadcast RGB: Full
supported: Full Limited 16:2
audio: auto
supported: off auto on
1920x1080 60.0*+
1280x1024 60.0
1280x720 60.0
1024x768 60.0
800x600 60.3
640x480 60.0 59.9
720x400 70.1
Attachment 89770, "xorg commands and outputs":
xrandr-clone.txt