3/9/2024 0 Comments Pc hardware monitor display![]() ![]() And no, I can’t use the auto-feature of the monitor because a) it does not adjust that far and b) even if it did, it would screw-up the other PCs. And no, I did NOT use the Auto feature in the monitor. So, no idea why it worked but from the back of my mind I seem to remember that once I implemented the cvt circus, it auto-centered. Unfortunately, that box was wiped out because of hardware failure. So, it’s not the KVM’s.įurthermore, some time ago, I had a different Ubuntu PC (20.04) on the same KVMs and it did generate the correct centered display with the 1920x1080 resolution. Furthermore, in some of those PCs I use even higher resolution without any problems. However, I have been at this for almost a week and no matter what I try it simply does not work!!!īefore we continue, please note that I have about 7 PCs with all kinds of Windows OS installed in them going through the exact same KVMs and none of them, not one, has this problem. So, theoretically speaking, if I could “clone” the exact command xrandr is using for a lower resolution but swapping in the 1920x1080, that should be it. 1024x768 or 800圆00), the DVI-1 display IS centered correctly without overlaps of any kind. Now, I thought that I could solve this because if I go to settings and switch to any of the other modes xrandr auto-generates (i.e. It turns out that the DVI-1 display is shifted to the left and behind the DVI-0 (the primary), thus, leaving a “dead band” on the left and a black column to the right. So, every time it boots, the DVI-1 resolution gets set to 1920x1080.īUT, there is a problem which I thought I could solve easily. Just to make sure that this gets automatically setup during boot, I added the last two commands into the ~/.profile file. So, as the resolution I need is not listed for DVI-1, I went the standard route: cvt 1920 1080 60 Screen 0: minimum 320 x 200, current 2944 x 1080, maximum 8192 x 8192ĭIN disconnected (normal left inverted right x axis y axis)ĭVI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 527mm x 296mmĭVI-1 connected 1024x768+1920+0 (normal left inverted right x axis y axis) 0mm x 0mm Even if I run: ls /sys/class/drm/*/edid | xargs -i"Ĭonsequently, xrander switches to a “generic” set of resolutions for this monitor. From the documentation, I know that the second monitor is an ASUS VP249 which is extremely similar to the first one. Modeline "Mode 0" 148.50 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsyncĭVI-1 goes through the “old” KVM#2 which does not provide Ubuntu with any monitor characteristics. #Not giving standard mode: 1152x864, 75Hz #Not giving standard mode: 1280x720, 60Hz ![]() #Not giving standard mode: 1280x960, 60Hz #Not giving standard mode: 1280x1024, 60Hz #Not giving standard mode: 1440x900, 60Hz #Not giving standard mode: 1680x1050, 60Hz #Not giving standard mode: 1920x1080, 60Hz Problem requesting slave address: Device or resource busyĢ56-byte EDID successfully retrieved from i2c bus 3 Consequently, edid can read its characteristics. The setup is as follows: PC -> Radeon card (dual output) -> KVM #1 -> DVI-0ĭVI-0 goes through the “good” KVM #1 and provides Ubuntu with the correct characteristics for the monitor. They are on a “Join Displays” configuration in Ubuntu (aka extended desktop). Resources: irq:33 memory:e0000000-efffffff memory:f7df0000-f7dfffff ioport:dc00(size=256) memory:c0000-dffffįilename: /lib/modules/5.15.0-94-generic/kernel/drivers/gpu/drm/radeon/radeon.koĪuthor: Gareth Hughes, Keith Whitwell, others.īoth monitors go through different KVMs. Ĭapabilities: pm pciexpress msi vga_controller bus_master cap_list rom Memory at f7df0000 (64-bit, non-prefetchable) Įxpansion ROM at 000c0000 Memory at e0000000 (64-bit, prefetchable) ![]() RV620 LE (prog-if 00 )įlags: bus master, fast devsel, latency 0, IRQ 33 The card is: lspci –vĠ1:00.0 VGA compatible controller: Advanced Micro Devices, Inc. I have a problem with the video output from a Radeon card (dual monitor) into two monitors.
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