OS/2, eCS & ArcaOS - Technical > Hardware
Resolution Assistance
Dave Yeo:
Most current video bios's seem to support wide monitor resolutions now and even my 12 year old Intel does, before that, the bios needs patching for wide screens if like us using the bios instead of a native driver. Seems that some bios's don't allow it under some circumstances such as using DisplayPort.
X11 here works fine with VGA, tried it with DisplayPort and it couldn't even find the video bios, which was weird.
Neil Waldhauer:
I don't have an M93p, but I'm using a lot of Lenovo machines with a 4K monitor with DisplayPort and HDMI inputs. With all the machines, I get 3840 x 2160 resolution for DisplayPort, and 1024 x 768 for HDMI.
I'm using Panorama. I think I tried SNAP, but it didn't do any better. I tried with ArcaOS 5.0.7 and ArcaOS 5.1 beta. Panorama offers what the monitor tells it to offer. Perhaps if you had a better DP-HDMI converter, things would work better. I plan to try the only VGA-DP converter on the market, and I'll report that when it arrives.
It would be nice to have a real video driver for monitors like this one. DisplayPort and HDMI carry Audio as well as Video, and we lack this capability. In practice, I can also use 1920 x 1440, which looks nicer than expected on the monitor.
Kevin Morgan:
--- Quote from: ivan on May 22, 2023, 01:00:01 am ---I see Dave has given you part of the answer but I have another question, what video output ports does your unit have and also what input ports does the monitor have?
--- End quote ---
The machine has DP and VGA outputs, the monitor purely HDMI.
--- Quote from: Dave Yeo on May 22, 2023, 03:39:43 am ---X11 here works fine with VGA, tried it with DisplayPort and it couldn't even find the video bios, which was weird.
--- End quote ---
It was something either in DP or the cable itself converting to HDMI (non/active vs active?)
--- Quote from: Neil Waldhauer on May 22, 2023, 03:16:04 pm ---I don't have an M93p, but I'm using a lot of Lenovo machines with a 4K monitor with DisplayPort and HDMI inputs. With all the machines, I get 3840 x 2160 resolution for DisplayPort, and 1024 x 768 for HDMI.
I'm using Panorama. I think I tried SNAP, but it didn't do any better. I tried with ArcaOS 5.0.7 and ArcaOS 5.1 beta. Panorama offers what the monitor tells it to offer. Perhaps if you had a better DP-HDMI converter, things would work better. I plan to try the only VGA-DP converter on the market, and I'll report that when it arrives.
It would be nice to have a real video driver for monitors like this one. DisplayPort and HDMI carry Audio as well as Video, and we lack this capability. In practice, I can also use 1920 x 1440, which looks nicer than expected on the monitor.
--- End quote ---
Thanks for the update, I used your site in configuring it. ;) It may be the adapter itself then // it looks wider on the HDMI (monitor side) so I probably have an active conversion going the wrong way and failing back to passive? Not sure, probably could try some others.
I ended up using a VGA to HDMI converter that has a USB to carry sound as well, have not tested the sound yet.
My resolution now can get up to 1920x1080 but fails when I try the full 4K.
Do you have a link to the DP to HDMI cables you are using? I would love to return this $50 cable and get one that supports 4K.
KC
Dave Yeo:
--- Quote from: Kevin Morgan on May 22, 2023, 09:44:51 pm ---
--- Quote from: Dave Yeo on May 22, 2023, 03:39:43 am ---X11 here works fine with VGA, tried it with DisplayPort and it couldn't even find the video bios, which was weird.
--- End quote ---
It was something either in DP or the cable itself converting to HDMI (non/active vs active?)
--- End quote ---
Actually it was a DisplayPort to DVI converter, which might have been the problem. Old monitor (1920x1200) only supports VGA and DVI.
Neil Waldhauer:
--- Quote from: Kevin Morgan on May 22, 2023, 09:44:51 pm ---
--- Quote from: Neil Waldhauer on May 22, 2023, 03:16:04 pm ---I don't have an M93p, but I'm using a lot of Lenovo machines with a 4K monitor with DisplayPort and HDMI inputs. With all the machines, I get 3840 x 2160 resolution for DisplayPort, and 1024 x 768 for HDMI.
I'm using Panorama. I think I tried SNAP, but it didn't do any better. I tried with ArcaOS 5.0.7 and ArcaOS 5.1 beta. Panorama offers what the monitor tells it to offer. Perhaps if you had a better DP-HDMI converter, things would work better. I plan to try the only VGA-DP converter on the market, and I'll report that when it arrives.
It would be nice to have a real video driver for monitors like this one. DisplayPort and HDMI carry Audio as well as Video, and we lack this capability. In practice, I can also use 1920 x 1440, which looks nicer than expected on the monitor.
--- End quote ---
Thanks for the update, I used your site in configuring it. ;) It may be the adapter itself then // it looks wider on the HDMI (monitor side) so I probably have an active conversion going the wrong way and failing back to passive? Not sure, probably could try some others.
I ended up using a VGA to HDMI converter that has a USB to carry sound as well, have not tested the sound yet.
My resolution now can get up to 1920x1080 but fails when I try the full 4K.
Do you have a link to the DP to HDMI cables you are using? I would love to return this $50 cable and get one that supports 4K.
KC
--- End quote ---
My Monitor has a DisplayPort input. I use that. I have not found a real working VGA to HDMI converter, but I'm more focused on getting VGA to DisplayPort to work.
My other find, which may or may not be helpful was a Lenovo branded USB-C to DisplayPort adapter. This makes my Lenovo and Dell laptops work well with the monitor.
Sound is also an issue. Without a driver that combines audio and video, I suspect I need a real mixer to do the job.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version