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SE2417HGX, parameters for manual configuration
I try to use the Dell SE2417HGX via VGA cable with a computer where the VGA graphics card needs to be configured manually to deliver the correct signal to the monitor.
Therefore, I'd like to know the monitor's values of the following video timing parameters for resolutions
VESA 1920x1080 at 60Hz and VESA 1600x1200 at 60Hz:
- Pixel Clock rate in kilo pixels per second
- Horizontal Total / Number of pixels per horizontal line
- Horizontal Pixels
- Horizontal Blank
- Number of pixels in horizontal front porch
- Number of pixels in horizontal sync
- Number of pixels in horizontal back porch
- Horizontal Frequency
- Horizontal Period
- Number of lines per frame
- Vertical Pixels
- Vertical Blank
- Number of lines in vertical front porch
- Number of lines in vertical sync
- Number of lines in vertical back porch
- Vertical Frequency
- Vertical Period
Info provided in the online User's Guide is not sufficient for successful configuration. If I am told the correct values I can do the manual configuration of my VGA graphics adapter.
swamped207
425 Posts
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March 23rd, 2021 01:00
Page 40 shows us that it does support 1600x1200 60Hz. As for 1920x1080 60Hz, your "VGA-graphics-card" driver should support the VESA 1080p 60Hz industry standard without user intervention, but regardless (for analog 60Hz 1080p):
Pixel Clock = 148.5 MHz
H Total Pixels = 2200
H Front Porch = 88
H Sync Width = 44
H Back Porch = 148
V Total Lines = 1125
V Front Porch = 4
V Sync Width = 5
V Back Porch = 36
Anonymous
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March 23rd, 2021 14:00
Thanks for your reply.
I didn't get 1920x1080 at 60Hz to work with the parameters provided by you.
But I get 1920x1080 at 60Hz to work with the following parameters:
Pixel Clock = 148.5 MHz
H Disp = 1920
H Front Porch = 32
H Sync Width = 216
H Back Porch = 32
V Disp = 1080
V Front Porch = 16
V Sync Width = 12
V Back Porch = 16
I did not yet manage to get 1600x1200 at 60Hz to work.
The VGA-graphics-card is Matrox Mystique PCI, bought in 1997 and it has 4MB memory which implies that at 1920x1080 you can have 16bit-colors at most. 24bit-color and 32bit-color takes too much memory.
The machine in question runs under Win95C, the program for adjusting the card to the monitor is called Matrox Quick Desk. It is used by my 99 year old grandfather who strictly refuses to learn/use more recent operating systems.
swamped207
425 Posts
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March 23rd, 2021 18:00
Industry standard for 1600x1200 @ 60Hz:
Pixel Clock = 162 MHz
H Total Pixels = 2160
H Front Porch = 64
H Sync Width = 192
H Back Porch = 304
V Total Lines = 1250
V Front Porch = 1
V Sync Width = 3
V Back Porch = 46
Anonymous
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March 24th, 2021 02:00
Thank you for looking this up.
I found these values too, in the "VESA and Industry Standards and Guidelines for Computer Display Monitor Timing (DMT) Version 1.0", Rev. 13 February 8, 2013, e.g., at https://glenwing.github.io/docs/VESA-DMT-1.13.pdf.
But with the monitor in question they work
Attempts at creating XFree86-modelines for 1600x1200 at 60Hz always end up with the monitor displaying a message about frequency not being in the specified range, together with an advise to use 1920x1080 at 60 Hz or something else listed in "the specifications".
Both Windows 10, Windows 7, Ubuntu 20.10 and Mint Cinnamon 4.8 and Debian don't list 1600x1200 at 60Hz as possible resolution for that monitor, but with all these you can choose and use 1600x900 at 60Hz (aspect ratio 16:9) which is not listed at page 40 of the monitor's user's guide.
I think as 1920x1080 at 60Hz works, 1600x1200 at 60Hz is not that important.
Thank you for taking the time for looking into this.
Sincerely
Ulrich (alias Singing_In_The_Rain)