Re: What's with the blue overlining in text consoles?
[Please don't top post on this mailing list] On Sun, Jul 14, 2013 at 05:10:18PM +0200, commandline wrote: Never heard of something similar to start with. Few guesses. * Terminal Emulation ? Check what happens if you switch from say xterm to linux to vt100 to ... Stephen did say when used in a text console (vt1-vt6) and The problem does not seem to occur in a Gnome Terminal window, only on a text console. I'd suggest you make a backup of the current files, then proceed Which files in particular? with tests. If it still fails proceed to reinstall the packages. Which tests are you suggesting? And why would you need to reinstall the packages? -- If you're not careful, the newspapers will have you hating the people who are being oppressed, and loving the people who are doing the oppressing. --- Malcolm X -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20130716072146.GB17167@tal
What's with the blue overlining in text consoles? [SOLVED]
On Sun, 14 Jul 2013 11:10:18 -0400 (EDT), commandl...@telenet.be wrote: On 13/07/13 21:55, Stephen Powell wrote: Something strange has started happening recently. For a long time I have used ISO-8859-1 as my character mapping in text consoles. dpkg-reconfigure console-setup and I have had no difficulty, except when using the ssh client to connect to a remote system which uses UTF-8. The box-drawing characters sent by the remote system did not look right under these conditions. To solve this problem, I switched my local system to use UTF-8. Now the box-drawing characters sent by the remote system look right when displayed by my local ssh client. However, I recently began noticing that all blue fields are now overlined. For example, the lynx web browser, when used in a text console (vt1-vt6), displays emphasized fields (the em.../em html tag) as blue overlined, when it used to display them simply as blue. I can live with that, I suppose. But what really bothers me is when I use the c3270 text-mode 3270 terminal emulator to logon to a mainframe. All blue fields are now overlined! This is driving me batty! I tried searching the world wide web using search words of blue overlining UTF-8 but did not obtain any useful results. Does anyone know the cause of this? Does anyone know the cure? Is this a bug? If so, in what package is the bug? The problem does not seem to occur in a Gnome Terminal window, only on a text console. My system locale is en_US.UTF-8. I am running an up-to-date Jessie system on i386 architecture. Never heard of something similar to start with. Few guesses. * Terminal Emulation? Check what happens if you switch from say xterm to linux to vt100 to ... * Character map error? Might be for some reason the charmap is damaged? Did you edit them at one point? Of would someone else have access to them? I'd suggest you make a backup of the current files, then proceed with tests. If it still fails proceed to reinstall the packages. Then check again... Do you mix the repo with Wheezy or unstable? This might at times cause quite unique weirdness. Thank you for your reply, but please don't top post. I took the liberty of reformatting this post in the bottom posting / interleaving style. Well, after a lot of trial-and-error experimentation, I have found the culprit. It's the video BIOS. This video BIOS supports eleven hardware text modes, as documented below: hex mode id screen size character cell (vga=ask) (text columns x size (horiz pixels text rows)x vert pixels) F00 80x25 9x16 F01 80x50 9x8 F02 80x43 8x8 F03 80x28 9x14 F05 80x30 9x16 F06 80x34 9x14 F07 80x60 9x8 121 100x259x16 122 100x309x16 123 132x258x16 133 132x448x8 Of these eleven hardware text video modes, ten of them work fine. That is, blue fields appear without overlining. One of them is defective. Mode id 0x122, for 100 text columns by 30 text rows, displays blue fields with overlining. And that's the one I was using. Coincidentally, I switched from 80x34 to 100x30 shortly after I switched from ISO-8859-1 character mapping to UTF-8 character mapping. The overlining of blue fields had nothing to do with the switch to UTF-8. It just appeared to be related because the video mode switch occurred at about the same time. The video BIOS apparently does not set up the VGA registers correctly for video mode id 0x122. But it does for all the other text video modes. The solution (actually a circumvention) is to choose a different video mode. Problem solved. For those of you who are interested, here is the information I have been able to obtain about my video chipset and BIOS: The video chipset is listed by lspci -nn as follows: 05:03.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Rage XL PCI [1002:4752] (rev 27) The video chip is built-in to the motherboard; so it's video BIOS is built-in to the motherboard too. /var/log/Xorg.0.log shows the following information about the video BIOS: MACH64(0): Primary V_BIOS segment is: 0xc000 ... MACH64(0): VESA BIOS detected MACH64(0): VESA VBE Version 2.0 MACH64(0): VESA VBE Total Mem: 8128 kB MACH64(0): VESA VBE OEM: ATI MACH64 MACH64(0): VESA VBE OEM Software Rev: 1.0 MACH64(0): VESA VBE OEM Vendor: ATI Technologies Inc. MACH64(0): VESA VBE OEM Product: MACH64GM MACH64(0): VESA VBE OEM Product Rev: 01.00 -- .''`. Stephen Powell : :' : `. `'` `- -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive:
Re: What's with the blue overlining in text consoles?
Never heard of something similar to start with. Few guesses. * Terminal Emulation ? Check what happens if you switch from say xterm to linux to vt100 to ... * Character map error ? Might be for some reason the charmap is damaged ? Did you edit them at one point ? Of would someone else have access to them ? I'd suggest you make a backup of the current files, then proceed with tests. If it still fails proceed to reinstall the packages. Then check again... Do you mix the repo with Wheezy or unstable ? This might at times cause quite unique weirdness. On 13/07/13 21:55, Stephen Powell wrote: Something strange has started happening recently. For a long time I have used ISO-8859-1 as my character mapping in text consoles. dpkg-reconfigure console-setup and I have had no difficulty, except when using the ssh client to connect to a remote system which uses UTF-8. The box-drawing characters sent by the remote system did not look right under these conditions. To solve this problem, I switched my local system to use UTF-8. Now the box-drawing characters sent by the remote system look right when displayed by my local ssh client. However, I recently began noticing that all blue fields are now overlined. For example, the lynx web browser, when used in a text console (vt1-vt6), displays emphasized fields (the em.../em html tag) as blue overlined, when it used to display them simply as blue. I can live with that, I suppose. But what really bothers me is when I use the c3270 text-mode 3270 terminal emulator to logon to a mainframe. All blue fields are now overlined! This is driving me batty! I tried searching the world wide web using search words of blue overlining UTF-8 but did not obtain any useful results. Does anyone know the cause of this? Does anyone know the cure? Is this a bug? If so, in what package is the bug? The problem does not seem to occur in a Gnome Terminal window, only on a text console. My system locale is en_US.UTF-8. I am running an up-to-date Jessie system on i386 architecture. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/51e2bf5a.2080...@telenet.be
What's with the blue overlining in text consoles?
Something strange has started happening recently. For a long time I have used ISO-8859-1 as my character mapping in text consoles. dpkg-reconfigure console-setup and I have had no difficulty, except when using the ssh client to connect to a remote system which uses UTF-8. The box-drawing characters sent by the remote system did not look right under these conditions. To solve this problem, I switched my local system to use UTF-8. Now the box-drawing characters sent by the remote system look right when displayed by my local ssh client. However, I recently began noticing that all blue fields are now overlined. For example, the lynx web browser, when used in a text console (vt1-vt6), displays emphasized fields (the em.../em html tag) as blue overlined, when it used to display them simply as blue. I can live with that, I suppose. But what really bothers me is when I use the c3270 text-mode 3270 terminal emulator to logon to a mainframe. All blue fields are now overlined! This is driving me batty! I tried searching the world wide web using search words of blue overlining UTF-8 but did not obtain any useful results. Does anyone know the cause of this? Does anyone know the cure? Is this a bug? If so, in what package is the bug? The problem does not seem to occur in a Gnome Terminal window, only on a text console. My system locale is en_US.UTF-8. I am running an up-to-date Jessie system on i386 architecture. -- .''`. Stephen Powell : :' : `. `'` `- -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/1182082504.2151649.1373745348517.javamail.r...@md01.wow.synacor.com
