Raspberry pi 1024x768

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Raspberry pi 1024×768

I have bought a small portable TV (Medion 83688) with a screen resolution 1024×600 and an HMDI input:

Unfortunately the Raspberry PI (with debian) uses 1024×768 when connected to this TV, so the picture is scaled down

Can anybody help me to set-up my Raspberry PI to use 1024×600 resolution?

Re: How to use 1024×600 resolution ?

Unfortunately this is not possible currently.
1024×600 is not a standard DMT or CEA HDMI resolution, and so isn’t supported. Only the standard modes are supported, shown here:
http://elinux.org/RPi_config.txt

There is a plan to allow arbitrary resolutions/framerates to be supported, but it probably won’t be for a while.

Re: How to use 1024×600 resolution ?

managed to set up my 1024 x 600 display using these settings

edit your config.txt file typing

Re: How to use 1024×600 resolution ?

You forgot a ’60’, which is the frquency of refreshing (Hz).
For detailed things, see: viewtopic.php?f=29&t=24679

—
A Chinese High School Student

Re: How to use 1024×600 resolution ?

I have a Raspberry Pi 4 and a Realtek RTD2660 based 1024×600 display. I struggled for some time to get this working at its native resolution. For me I had to set:

hdmi_force_hotplug=1
hdmi_cvt=1024 600 60 3
hdmi_group=2
hdmi_mode=88

Note that hdmi_mode needs to be 88 for me, not 87 as described elsewhere and force hotplug was needed.

This only shows one display port though. With safe mode I can see both ports presented. More investigation required to enable both ports.

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Raspberry pi 1024×768

I’ve been trying to fix an issue with my Raspberry Pi 4 since yesterday with little success.

I got a new LG 4K monitor and changed my Pi resolution from 1920×1080 to 3840×2160 @ 30 Hz (the HDMI cable I have does not support 4K @ 60 Hz as far as I know).

When I turned on my Pi yesterday the resolution had changed to 1024×768. I went to the screen configuration (where I changed the resolution to 3840×2160 before) and there were no higher resolutions showing, only a few lower ones.

I managed to force the resolution to 1920×1080 by editing /boot/config.txt. However trying to set it to 3840×2160 didn’t work and I had the same problem with only 1024×768 as before. I tried connecting my Pi to a TV instead and the boot screen appeared then it went blank.

Is this a possible hardware issue, either with the Pi itself or the cable (although it worked before so seems unlikely)? I seem to have exhausted all possibilities with /boot/config.txt. I’ve ordered a new micro HDMI to HDMI cable that supports 4K @ 60 Hz just in case that makes any difference.

Also, is HDMI port 1 meant to work with with just one display? I tried using that instead and it doesn’t work at all.

Someone else had a very similar issue to me before: viewtopic.php?t=244371

Any help would be appreciated.

Re: HDMI resolution problem — max 1024×768

The RPi4B should use the HDMI socket next to the power socket for a single monitor setup.
Looks like the EDID data isn’t being read correctly, therefore defaulting to VGA.

For me, I use
hdmi_force_hotplug:0=1
hdmi_group=2
hdmi_mode=39 (for 1366×768)

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Raspberry pi 1024×768

Hi, welcome to the forum!

Picture size is limited on the forum; rescale them to 640x480pixles or use an image hosting service.

How did you ‘manually change the resolution’? If your monitor is FHD (1920×1080) you should be able to select this resolution.

Check your supported resolutions by using the screen configuration utility. Find it from the PREFERENCES MENU.

Then select your display in question (as RPI can drive up to two screens simultaniously) by clicking on CONFIGURE->your-screen (HDMI0 most likely)->RESOLUTION. This should open a menu with available resolutions from which you can select now FHD.

Re: Pi 4 no longer able to output at 1920×1080. Maxes out at 1024×768?

Rose tinted glasses are difficult to see through.

Re: Pi 4 no longer able to output at 1920×1080. Maxes out at 1024×768?

I’m not sure what any of this means. I’m a Raspberry Pi beginner so the advice you are giving me is something I’m unfamiliar with.

What is the result when you add below to your config.txt?
Code: Select all

For example: what is config.txt and where can I find it. Next, Code: Select all I’m not sure what this is. I opened up the terminal and typed in hdmi_enable_4kp60=1 thinking this was what I was supposed to do. Finally the monitor keeps switching back and forth between a maximum of 1024×768, then a week later it reverts back to normal at 1920×1080. Installed Manjaro OS and it ran normal for a day the. Did the same exact thing as Raspberry Pi OS. It’s baffling. Thank you for the help.

Re: Pi 4 no longer able to output at 1920×1080. Maxes out at 1024×768?

To save is ctrl-o then return to confirm file name

To exit is ctrl-x

Re: Pi 4 no longer able to output at 1920×1080. Maxes out at 1024×768?

the «Code» means that the text that follows it is marked as code and will be shown «raw/unformatted» in the box that follows.

«Select all» is something you can click on to highlight everything in the «code» box so you can copy it.

They are automatically put there if you use the «[ code ]» tags in a post. There is an icon to select that when you post.

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Raspberry pi 1024×768

Hello,
I bought a HDMI <> VGA adapter for my Raspberry Pi 4 and attached it to an old CRT monitor (TYSTAR TY-1415).

An old advertising shows that it should support resolution up to 1024*768:

I then edited /boot/config.txt with the following settings:

hdmi_force_hotplug=1
hdmi_group=2
hdmi_mode=9
hdmi_drive=1

So 800*600 for testing purposes works.

But setting hdmi_mode=16 (1024×768 / 60Hz / 4:3) doesn’t work.
The screen makes a high pitching noise and the image is distorted:

I tried other mode with 1024*768 (other frequencies) but they also don’t work. Interestingly the image then is distorted in other ways, e.g.

What I also don’t like is that with 800*600 the image has a large border on the left (can’t be corrected with hardware knobs on the CRT), it is somehow misaligned a bit.

I guess I could solve this problem with custom settings by using the custom hdmi video timing setting. I found something like this:
https://tomverbeure.github.io/video_timings_calculator

But I don’t know where to start. Can somebody help me? Maybe somebody already had a problem like this before and solved it?

$ tvservice -s
state 0xa [HDMI CUSTOM RGB full 4:3], 1024×768 @ 60.00Hz, progressive

$ tvservice -m DMT
Group DMT has 8 modes:
mode 4: 640×480 @ 60Hz 4:3, clock:25MHz progressive
mode 9: 800×600 @ 60Hz 4:3, clock:40MHz progressive
(prefer) mode 16: 1024×768 @ 60Hz 4:3, clock:65MHz progressive
mode 32: 1280×960 @ 60Hz 4:3, clock:108MHz progressive
mode 35: 1280×1024 @ 60Hz 5:4, clock:108MHz progressive
mode 47: 1440×900 @ 60Hz 16:10, clock:106MHz progressive
mode 51: 1600×1200 @ 60Hz 4:3, clock:162MHz progressive
mode 58: 1680×1050 @ 60Hz 16:10, clock:146MHz progressive

Re: HDMI — VGA adapter, CRT monitor 1024*768 resolution doesn’t work

Your monitor can only do 1024×768 in interlaced mode. Your photo shows there is a more expensive TY-1415A that can do 1024×768 in progressive scan mode.

I’m not sure whether it’d be the Pi configuration or the HDMI to VGA adapter that needs to be changed to support interlaced mode. The DMT modes are all progressive scan. You can try crafting your own interlaced one with hdmi_timings but I don’t know if that’ll work.

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Raspberry pi 1024×768

I’am using pi3 and try to connect to the ULTRA STRETCH (3840 x 600) display but Pi is not responding with the actual resolution.
tvservice recognise only upto 1920×1080 .

Specs:
pi version : pi3
OS version : raspbian wheezy
Display : ULTRA STRETCH (3840 x 600 ) http://www.lg.com/us/business/commercia . /lg-86BH5C

Is there any Maximum resolution for Pi could support?

======================tv service==============================
sudo tvservice -s
state 0x12000a [HDMI CEA (16) RGB lim 16:9], 1920×1080 @ 60.00Hz, progressive

sudo tvservice -m CEA
Group CEA has 8 modes:
mode 1: 640×480 @ 60Hz 4:3, clock:25MHz progressive
mode 2: 720×480 @ 60Hz 4:3, clock:27MHz progressive
mode 3: 720×480 @ 60Hz 16:9, clock:27MHz progressive
mode 4: 1280×720 @ 60Hz 16:9, clock:74MHz progressive
mode 5: 1920×1080 @ 60Hz 16:9, clock:74MHz interlaced
(prefer) mode 16: 1920×1080 @ 60Hz 16:9, clock:148MHz progressive
mode 32: 1920×1080 @ 24Hz 16:9, clock:74MHz progressive
mode 34: 1920×1080 @ 30Hz 16:9, clock:74MHz progressive

sudo tvservice -m DMT
Group DMT has 6 modes:
mode 4: 640×480 @ 60Hz 4:3, clock:25MHz progressive
mode 9: 800×600 @ 60Hz 4:3, clock:40MHz progressive
mode 16: 1024×768 @ 60Hz 4:3, clock:65MHz progressive
mode 35: 1280×1024 @ 60Hz 5:4, clock:108MHz progressive
mode 58: 1680×1050 @ 60Hz 16:10, clock:146MHz progressive
mode 81: 1366×768 @ 60Hz 16:9, clock:85MHz progressive

Thanks in advance for the support

Re: What is the maximum display resolution Pi can support?

mahesh1988 wrote: I’am using pi3 and try to connect to the ULTRA STRETCH (3840 x 600) display but Pi is not responding with the actual resolution.
tvservice recognise only upto 1920×1080 .

Specs:
pi version : pi3
OS version : raspbian wheezy
Display : ULTRA STRETCH (3840 x 600 ) http://www.lg.com/us/business/commercia . /lg-86BH5C

Is there any Maximum resolution for Pi could support?

======================tv service==============================
sudo tvservice -s
state 0x12000a [HDMI CEA (16) RGB lim 16:9], 1920×1080 @ 60.00Hz, progressive

Thanks in advance for the support

Re: What is the maximum display resolution Pi can support?

1920×1080 @60fps is the maximum supported by default. There is a thread around about supporting higher resolutions at lower frame rates. You’re likely to need custom timings for such a weird resolution anyway.

@FTrevorGowen IIRC the reported edid list is already filtered based on supported modes. The native mode is going to be unsupported.

Re: What is the maximum display resolution Pi can support?

mahesh1988 wrote: I’am using pi3 and try to connect to the ULTRA STRETCH (3840 x 600) display but Pi is not responding with the actual resolution.
tvservice recognise only upto 1920×1080 .

Specs:
pi version : pi3
OS version : raspbian wheezy
Display : ULTRA STRETCH (3840 x 600 ) http://www.lg.com/us/business/commercia . /lg-86BH5C

Is there any Maximum resolution for Pi could support?

======================tv service==============================
sudo tvservice -s
state 0x12000a [HDMI CEA (16) RGB lim 16:9], 1920×1080 @ 60.00Hz, progressive

Thanks in advance for the support

Sorry, for the late replay.

@FTrevorGowen,
Thanks for the replay,

[ you are right, I don’t need to use sudo for tvservice. actually I’am working with other things and type sudo for tvservice too. ]

Here am using direct HDMI connection.

Finally, I got some solutions for getting in 3840×600 resolution from the another thread pointed by @6by9.

I used the below lines in config.txt

But X screen not taking to the full screen, working only in the middle of the screen. ( I’am running UZBL Browser )

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