My Vizeo VP42 720 tv is running at 1024 and what appears to be a stretched picture to fill the screen on the latest Catalyst drivers. It does the same thing with the open source drivers. I’d like to know how to get the system to run at 1366 where I understand it should be.
I just got the tv used and have previously been running the system on a standard 4:3 crt display at 1024. I have tried removing reinstalling the AMD drivers…
Any more information you need I will do what I can to supply.
Start by examining /sharing /var/log/Xorg.0.log, as the log entries will show information about what was detected, and the display mode selected. TV display’s often behave a lttile differently to monitors. Sometimes manual configuration is required.
Don’t worry about that - not relevant to the issue anyway.
Anyway, your display is detected as
18.594] (II) fglrx(0): Monitor name: VIZIO VP42
18.594] (II) fglrx(0): Serial No: HLAFAG4900769
18.594] (II) fglrx(0): Number of EDID sections to follow: 1
18.594] (II) fglrx(0): EDID (in hex):
18.594] (II) fglrx(0): 00ffffffffffff00593a240001010101
18.594] (II) fglrx(0): 31100103085c34780a3013a65649b025
18.594] (II) fglrx(0): 0b4c4ca54e0081804559010101010101
18.594] (II) fglrx(0): 0101010101c164190040410026301888
18.594] (II) fglrx(0): 3600980832000018000000fd0038551f
18.594] (II) fglrx(0): 500e000a202020202020000000fc0056
18.594] (II) fglrx(0): 495a494f20565034320a2020000000ff
18.594] (II) fglrx(0): 00484c41464147343930303736390190
18.594] (II) fglrx(0): End of Display0 EDID data --------------------
18.598] (II) fglrx(0): Output CRT1 connected
18.598] (II) fglrx(0): Using exact sizes for initial modes
18.598] (II) fglrx(0): Output CRT1 using initial mode 1024x768
18.598] (II) fglrx(0): Using default gamma of (1.0, 1.0, 1.0) unless otherwise stated.
18.598] (II) fglrx(0): DPI set to (96, 96)
You could edit the configuration files in /etc/X11/xorg.conf.d/ to force the desired display resolution. There are already numerous threads explaining how to to this, but if necessary we can guide you through this process.
Wrong:
18.597] (II) fglrx(0): Printing probed modes for output CRT1
…
18.598] (II) fglrx(0): Modeline "1280x720"x60.0…
Thus all he should need is a valid xorg.con* that includes ‘PreferredMode
“1280x720”’ to achieve a correct 16:9 aspect ratio. I have 2 Vizio 1080p LCDs
supporting 1280x720 in addition to the real native 1920x1080. The following
as xorg.conf brings 13.1 LXDE up in 1280x720 on my Radeon 9000 AGP DVI output:
Likely all OP needs to make this work for him is to comment or remove the
‘Option “monitor-DVI-0”’ line if he’s using the FOSS driver, and has made
sure he has no conflicting entries in xorg.conf.d/.
“The wise are known for their understanding, and pleasant
words are persuasive.” Proverbs 16:21 (New Living Translation)
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
As already mentioned, the native display resolution is 1024x768. However, Xorg reports probed display modes that the TV supports, and I agree that 1280x720 can be configured if desired, but these are internally supported display modes.
Wrong:
18.597] (II) fglrx(0): Printing probed modes for output CRT1
…
18.598] (II) fglrx(0): Modeline "1280x720"x60.0…
Again, I think you misunderstood. The OP was under the impression that 1366x768 should be obtainable. Yes, 1280x720 (or even 1280x960) can be configured manually, but this will not improve the image at all, since scaling/cropping employed internally by the TV (actual native display resolution is only 1024x768).
> Again, I think you misunderstood. The OP was under the impression that
> 1366x768 should be obtainable. Yes, 1280x720 (or even 1280x960) can be
> configured manually,
What I understood is:
1-OP complained about the stretch distortion that results from using a 4:3
Xorg mode on a 16:9 display panel
2-OP thought a 1366 wide mode should be his solution.
As his xorg log listed no available 1366 mode, I ignored any mention of 1366
in my reply, focusing on a solution to his actual complaint.
> but this will not improve the image at all, since
> scaling/cropping employed internally by the TV (actual native display
> resolution is only 1024x768).
Restoring the native aspect by using 1280x720 will_improve the image by
removing the stretch distortion, drawing a 16:9 mode on a 16:9 screen,
keeping circles circular and squares square, notwithstanding whatever effect
on perceptible detail might exist due to the coarse “native” resolution to
used resolution mismatch.
“The wise are known for their understanding, and pleasant
words are persuasive.” Proverbs 16:21 (New Living Translation)
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Now I’m with you. Yes, configuring for 1280x720 would eliminate the ‘stretched’ display, even though the image will be rescaled to 1024x768. (I really dislike the idea of using low-end TVs for computer displays.)
You’re both right. I was asking about 1366 but just because I was under the impression that that was native resolution and would fix the stretching. It will run at 1280x720 but looks blurry and my games don’t run at that rez so… at least the ones I’ve tried. It looks like this is not really a suitable computer display.