Not quite the same issue, but might be of help or point you in a useful direction.
I had a monitor that had a bad checksum in the EDID, so it would only work at 640x480. I was able to fix the issue by extracting the EDID from the monitor and fixing the checksum, then saving it to a file. I then configured Xorg.conf to use the file instead of the one it would read from the monitor. ( I later just fixed the checksum and re-wrote it to the monitor so I didn't have to deal with this hack ) Here are instructions on Nvidia's website. https://nvidia.custhelp.com/app/answers/detail/a_id/3571/~/managing-a-display-edid-on-linux You might be able to use this to tweak the reported capabilities of the TV to be usable. You can use 'read-edid' to get the edid from the TV then edit it with a hex editor. Hope this is of some help, Jason On Thu, Mar 28, 2019 at 5:05 PM <[email protected]> wrote: > Disclaimer: I cannot remember how I solved this - long time ago - I > hope my comentary might give you some ideas. > > I had similar problem in the past - caused by TV lying about its screen > resolution. It was one of the cheap but expensive + early Visio TVs. > There was sticker on the back advertising the "greatest and truest HD > TV ever". Needless to say the panel was not even HD but some obscure > 1013-ish to 698-ish and of course it advertised itself as 1280x720 and > it was 6b panel with pretty bad dithering too. > > I have a feeling that I was able to override the reported resolution in > X device configs somehow. I remember upgrading to newer distro about 2+ > years ago - I could not get it working anymore. My wife solved it for > me by getting cheap, but this time not so expensive + late full HD + > not-Visio TV with real 1920x1080 resolution reported. That was the end > of that struggle for me. > > Hope it helps you somehow, > Tomas > > On Thu, 2019-03-28 at 16:38 -0700, Dick Steffens wrote: > > The system is a Lenovo M58P with an nVidia GeForce GT 610 using its > > HDMI > > port. The OS is Xbuntu 18.04. > > > > I'm trying to deal with the issue of the top and sides of the > > desktop > > are outside of the TV frame. I tried the instructions at: > > > > https://ubuntuforums.org/showthread.php?t=2380987 > > > > and have the same error as experienced by the poster. > > > > ------------------------------------------------------------------- > > ------------ > > $ xrandr > > HDMI-0 connected (followed by a bunch of stuff) > > > > $sudo xrandr --output HDMI-0 --set underscan on --set "underscan > > vborder" 30 --set "underscan hborder" 30 > > X Error of failed request: BadName (named color or font does not > > exist) > > Major opcode of failed request: 140 (RANDR) > > Minor opcode of failed request: 11 (RRQueryOutputProperty) > > Serial number of failed request: 31 > > Current serial number in output stream: 31 > > ------------------------------------------------------------------- > > ------------ > > > > Additional searches don't seem to address the problem. > > > > Ideas? > > > > Thanks. > > > _______________________________________________ > PLUG mailing list > [email protected] > http://lists.pdxlinux.org/mailman/listinfo/plug > _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
